Best Cheating Apps in 2026: 21 Apps Cheaters Use​

Apps Cheaters Commonly Use in 2026

There isn’t one type of app people use to hide an affair, another relationship or a conversation they don’t want somebody else to see. The apps cheaters use can include affair and dating platforms, secret texting and messaging apps, disguised or decoy apps, second accounts, private browsers, hidden folders and ordinary social apps with privacy features.

Some are genuinely built around discretion. DailyNewsTalk hides private chats behind a news-style interface. Calculator Pro+ puts private messages behind a working calculator. Illicit Encounters is explicitly aimed at married people looking for discreet connections. Others are ordinary messaging, privacy or storage apps with features that can be used perfectly legitimately.

That distinction is important when you’re looking at hidden or secret cheating apps. An active affair-site account in a relationship where exclusivity has been agreed is very different from Signal simply being installed. A second calculator may be worth identifying if it turns out to be a vault, but the existence of a vault still doesn’t tell you what somebody is keeping private.

After years of testing security, privacy, communication and monitoring software, I tend to look beyond the app icon itself. I want to know what the technology allows somebody to separate, hide or delete, whether the activity is current and what other digital signals sit around it. A second account, recurring subscription, unexplained payment or burner number can sometimes tell you more than the app alone.

AI has widened the picture again. Romantic or sexual conversations no longer necessarily involve another person, while AI-generated photographs, messages, audio and profiles can make online identities harder to interpret. A list of apps can tell you what is possible on a phone. It can’t tell you the whole story of what is happening on it.

I didn’t want this to become another list built from app-store descriptions, so I installed and tested the more unusual apps and privacy features myself. I also handed the test phone to my wife without telling her what I had added to see which apps, accounts and hidden features she noticed during ordinary use. Some supposedly secret apps were easier to identify than I expected, while mainstream features such as hidden WhatsApp chats and Samsung Secure Folder were much easier to miss.

21 Cheating Apps: What They Do and What We Found

The table below covers all 21 cheating apps and app types in this guide, including what each one can do and what stood out when I tested it.

1. DailyNewsTalk

DailyNewsTalk is one of the more literal secret communication apps I found. The private-chat function is deliberately hidden behind what looks like a news experience.

According to its current Google Play and App Store listings, private messages can appear as breaking-news-style notifications. Tap the notification, enter a PIN and the private chat opens. Leave the app and it returns to the news screen. The service also advertises private voice and video calls and usernames rather than requiring a phone number.

I installed it alongside the apps I normally keep on the test phone and handed the phone to my wife. She didn’t pick it out from the Home Screen. Her first assumption was exactly the one the app is designed to create: that it was some sort of news app I had downloaded for testing.

The disguise became much weaker once I moved away from the Home Screen. The current store listing is considerably more explicit about what the app actually does, and an installed-app search gives you more to work with than the news interface alone.

The notification test was the bit I found more convincing. A generic news-style alert attracts much less attention than a notification containing a person's name and part of a private message. If somebody only glanced at the phone, I can see how it would be overlooked.

I would take an unexplained DailyNewsTalk installation more seriously than WhatsApp or Signal because concealment is part of the product itself. It still can’t tell you who somebody is talking to or whether the conversation crosses a relationship boundary.

2. Calculator Pro+

Calculator Pro+ is a much better disguise than the name initially suggests.

The current Android version still works as a real calculator. Enter the secret PIN on the keypad and it opens a private area for SMS, app-to-app messages, calls and media. It also supports a fake PIN that opens an empty decoy inbox, automatic locking and fingerprint access.

On Android 10 and later, the icon remains visible as a calculator. Older Android versions can hide the icon entirely. The developer also advertises a companion setup that can route selected SMS conversations away from the normal inbox.

I put it beside the standard calculator on the test phone and gave the phone to my wife. She noticed there were two calculators, but she didn’t immediately assume one of them was hiding messages. Her reaction was closer to ‘why have you downloaded another calculator?’ than ‘this is obviously a secret app’.

Opening it without the PIN did not help much because it behaved like a calculator. The decoy PIN was also more convincing than I expected. If you already knew the app was a vault, you would know what you were looking at. If you didn’t, there was very little in the normal interface to tell you.

The full installed-app list was more useful than the Home Screen. It confirmed there was an additional calculator installed and gave me an exact app name to search.

If you find a second calculator on a phone you are authorised to inspect, identify it rather than assuming it is redundant. I still wouldn’t treat the app itself as evidence of an affair. Calculator Pro+ can hide private material, but private material and cheating are not interchangeable.

If disguised or hidden apps are what concern you most, mSpy is one of the tools I’d look at first. Its Android keylogger, screen recording and app visibility were particularly useful in my testing when the activity wasn’t tied to one obvious messaging or social platform.

3. Pure

Pure sits in a different category because it is openly a dating app rather than something pretending to be another utility.

Pure currently describes itself as a privacy-focused dating app with disappearing chats and consent-led media controls. Temporary conversations and media can leave less history than a conventional messaging thread, but those features can change and no app can stop somebody photographing a screen with another device.

Once I had identified Pure on the test phone, there was far less ambiguity about what kind of app I was looking at. My wife recognised it as dating-related once she opened it, even though the icon itself would not necessarily mean much to somebody who had never seen Pure before.

I also tested what happened after temporary content disappeared. There was much less historical context left behind than you would have with a conventional SMS conversation. That is useful for privacy and safer casual dating, but it also explains why an old glance through the app may not tell you much about previous conversations.

If exclusivity has been agreed, recent use of Pure is more relevant than an old download. I would look for an active profile, current subscription or recent use before assuming that its presence means somebody is dating now.

4. Illicit Encounters

Illicit Encounters is particularly relevant to UK readers because the service is explicitly aimed at married people looking for discreet connections.

It supports private messaging without immediately giving another member your personal email address, and the service has promoted anonymous profiles, discreet billing and private photo controls.

There is much less interpretive work to do here than there is with Signal or a vault app. If somebody has agreed to a monogamous relationship and is actively using an affair-focused dating service without their partner knowing, the purpose of the account is directly relevant.

One thing I would not rely on is the app drawer. Illicit Encounters can be used through a browser, so somebody could have an active account without a recognisable app icon appearing on the phone at all.

An old account, a browser visit, an active subscription and recent conversations still tell you four different things. I would want current context before drawing a conclusion. I would also look at the wider picture, including recurring subscriptions or unexplained payments. Romantic and financial infidelity can overlap, and sometimes the money trail tells you more than the icon on the phone.

5. Kik

Kik allows people to communicate using usernames rather than requiring them to give another user their everyday phone number.

That separation is useful in online communities and other legitimate situations. It can also keep a conversation away from somebody's normal calls, SMS records and phone contacts.

When I put Kik on the test phone, there was nothing particularly hidden about the app itself. My wife recognised it as a messaging app, although she would not have known which account or contacts were attached to it simply from seeing the icon.

The account model is more relevant than the appearance. Somebody can have a Kik identity that is not obviously connected with the contact details a partner already knows.

6. Session

Session takes identity separation further. You do not need a conventional phone number or email address to create an account, and it supports encrypted conversations and disappearing messages.

I found the app itself fairly easy to spot once I knew I was looking through the installed apps. My wife did not recognise the Session name, though, and would not have known from the icon alone that it was a private messenger.

The privacy is mostly inside the account rather than in a disguised calculator-style interface.

There are legitimate reasons to use Session, particularly if somebody wants to reveal less personal information online. If it appears alongside an unexplained second identity or a wider change in behaviour, you have more context than the app alone gives you.

7. Fake Calculator Vault Apps

Calculator Pro+ is not the only app using this disguise. There are dozens of calculator-style vaults with names such as Calculator Vault, Secret Calculator and Calculator+.

Some simply protect photographs, videos or files. Others include browsers, notes, hidden contacts or additional private areas behind the calculator interface.

I tested one basic calculator vault beside Calculator Pro+ and the phone's normal calculator. Three calculator icons on one phone looked odd once my wife stopped and counted them, but none screamed ‘hidden photos’ from the Home Screen.

The weaker point was Settings. Once we opened the full installed-app list and searched the exact app names, it became much easier to work out what we were looking at.

If a phone already contains the calculator it came with, I would always identify an unfamiliar second calculator rather than dismissing it. The presence of a vault still only tells you somebody wanted additional privacy.

8. Photo Vault and Secret Folder Apps

Keepsafe, Private Photo Vault and similar apps are much less deceptive about being privacy tools.

They put photographs, videos and files behind an additional password, PIN or biometric check. Someone may be storing passport scans, financial documents, intimate photographs, family files or confidential work. The same type of vault could also be used for screenshots, saved conversations or other material somebody does not want in the normal gallery.

My wife spotted the purpose of a conventional photo vault much faster than the calculator versions. The icon and app name made it fairly clear that private files were involved.

What she could not tell was what was inside it, which is the part people sometimes skip over when they are already worried. Finding a vault does not answer that question, and it does not give you permission to bypass another adult's password.

9. Burner-Number Apps

Burner, Hushed, TextNow, Phoner and similar apps can provide an additional phone number without somebody carrying a second physical phone.

There are plenty of legitimate reasons to do this. I have used separate numbers for work and online services myself. People selling things online, travelling or dating for the first time may also reasonably want to keep their main number private.

On the test phone, the app itself was visible enough. My wife could tell Hushed or TextNow was some sort of communication service once she opened it, but the existence of a second phone number was not obvious from looking at the phone normally.

The extra number is more useful context when it appears alongside unexplained calls, another identity, a second account or communication somebody has deliberately kept separate.

10. Parallel Space, App Cloners and Samsung Secure Folder

This was one of the more interesting tests. Parallel Space, App Cloner and built-in tools such as Samsung Dual Messenger allow more than one version or account of the same app to exist on a phone. Samsung Secure Folder can go further by creating a protected space for duplicate apps, accounts and files.

Samsung currently allows Secure Folder to be removed from the Home and Apps screens completely. It can also be renamed and given a different icon. I hid it from the app drawer and put a second test account inside it before handing the phone to my wife.

She didn't find the second account during normal use. There was nothing on the Home Screen pointing her towards it.

Once we went into Settings, the picture changed. Secure Folder can still be accessed through the phone's security settings, and recent Samsung users have also reported app or account information from Secure Folder appearing in ordinary Settings areas. In other words, hidden from the launcher does not mean erased from the device.

I found this more convincing than several of the ‘secret app’ disguises because it is a normal Samsung feature rather than a suspicious-looking third-party download.

There are equally normal reasons to use it. Work accounts, private photos and financial apps are obvious examples. I would pay attention to an undisclosed second account, not treat Secure Folder itself as evidence.

This is another situation where I’d lean towards mSpy if the aim is to understand wider activity across an authorised Android phone rather than one single app. Its combination of typed activity, screen recording and app visibility made it more useful to me here than a tool focused mainly on one supported messenger.

11. Private Browsing Apps and Hidden Browser Vaults

DuckDuckGo, Brave, Firefox Focus, Ghostery and other privacy-focused browsers can reduce how much browsing information is stored locally.

Some make clearing local traces deliberately quick. DuckDuckGo's Fire Button is built around closing tabs and removing local browsing data in one action.

The apps themselves were not difficult to spot on my test phone. The privacy sits in what is no longer left behind after browsing.

I use privacy browsers myself, so I would be very wary of treating one as suspicious. There are good reasons to reduce advertising tracking and local browsing history.

The same browser can obviously be used to access a dating profile, affair site, secondary email account or AI service. A blank browser history cannot prove that nothing was visited, just as the browser itself cannot prove something was.

12. iPhone Notes and Shared Notes

Communication does not always need a messaging app.

Two people can collaborate inside a shared Apple Note and see edits without creating a conventional SMS or WhatsApp thread. Individual Notes can also be locked, although Apple puts limits around locking content that is actively being shared.

I tested the basic shared-note idea with my wife and it felt almost comically ordinary. There was no new messaging icon to discover, no secret app and nothing unusual on the Home Screen. Unless somebody already knew which Note to open, Notes looked exactly like Notes.

I would not put much weight on frequent Notes use by itself. Most people opening the app are writing lists, saving links or keeping information they do not want to forget.

It's useful mainly as a reminder that there is no complete list of apps somebody has to use to communicate privately.

13. AI Companion and Chat Apps

AI companion apps have changed this category more than I expected. Replika lets users choose a relationship status that can include a romantic partner, while its paid tier unlocks romantic conversations and other relationship features. Nomi openly offers AI girlfriends, boyfriends and emotionally intimate relationships built around long-term memory.

I tried both because I wanted to see how obvious that side of the product was from the phone itself.

My wife recognised Replika as an AI app but didn't immediately associate it with a romantic relationship. Nomi was even less obvious from the icon and name. You had to open the app or look at the store description before the girlfriend/boyfriend framing became clear.

Inside the products, the relationship potential was much more explicit. Replika allows the relationship status to be changed, and Nomi is designed to remember personal details and build an ongoing relationship rather than treating every conversation as disposable.

This is where I think couples need to have a conversation that barely existed a few years ago. There may be no other human involved, but somebody can still be spending time, intimacy and sexual or emotional attention inside a relationship their partner knows nothing about.

I asked my wife which part she would expect me to tell her about. Her view was less about whether the software was ‘real’ and more about whether I was deliberately building an intimate relationship and hiding it from her. I think that is a much more useful way to frame it.

Our guide to emotional bonding with an AI partner looks at that question in more depth.

14. Secret Messaging Apps

Threema, Dust, CoverMe and similar services sit within a wider group of privacy-focused messengers. Depending on the product, they may offer encrypted communication, disappearing messages, protected inboxes, identity separation or private file storage.

I didn't find the apps themselves especially difficult to spot when installed normally. The harder part is understanding what the privacy controls inside them mean and whether any conversation history remains.

Older articles can also be misleading here. Wickr Me still appears on lists of secret cheating apps even though the consumer service closed at the end of 2023. Check that an app is current before worrying about advice written years ago.

15. Affair-Focused Platforms

Ashley Madison, Gleeden and Victoria Milan sit apart from ordinary privacy tools because discreet or extramarital dating is central to how they are positioned.

I wouldn't put an active account on one of these services in the same category as an encrypted messenger.

If somebody has agreed to an exclusive relationship and is actively using an affair-focused dating service without their partner knowing, the account itself provides considerably more context.

Current use still needs to be established. An abandoned account, a one-off browser visit, a paid subscription and recent messages are not interchangeable. If there are unexplained dating subscriptions, hotel charges, gifts or other payments alongside the account, that wider financial pattern is worth understanding too.

16. Snapchat

Snapchat is one of the most familiar examples of temporary communication. Photographs, videos and messages can disappear after they are viewed or after a selected period, and private sharing can limit who sees particular content.

I ran a basic disappearing-message test and handed the phone back to my wife afterwards. Once the temporary content had gone, there was much less for her to interpret than there would have been in an ordinary SMS thread. She could still see that Snapchat existed and, depending on the interaction, that a contact or conversation had been present, but not reconstruct everything that had already disappeared.

Snapchat is also a huge mainstream platform. I would never treat installation as meaningful on its own. A sudden change in how somebody uses it is more useful than the icon.

17. Instagram DMs and Multiple Accounts

Instagram surprised my wife more than some of the explicitly private apps. I added a second test account, muted its notifications and then handed her the phone while the main account was open.

She did not notice the second account during ordinary scrolling. Once she opened the profile/account switcher, it was easy to find. Until then, the main Instagram experience looked completely normal.

That is useful context if you are checking your own or a jointly managed device. One Instagram icon can contain several identities, and notifications can be managed separately.

Instagram itself is not suspicious. A deliberately undisclosed second dating or messaging identity is a different question.

18. WhatsApp

WhatsApp was the strongest example of a mainstream feature being more discreet than some apps marketed as ‘secret’.

I locked a test chat, created a secret code, hid the locked-chat folder and muted the conversation. WhatsApp's current design allows hidden locked chats to disappear from the normal Chats view and be reopened through the secret-code search flow. Notifications for locked chats can also hide the contact name and message content. I then gave the phone to my wife.

From the normal Chats screen, she didn't spot the locked conversation. There was no obvious folder sitting there telling her I had hidden something, and the notification gave her very little to work with.

Once she knew there was a locked conversation and started looking more deliberately, there were other routes that could reveal that something existed. Recent WhatsApp users have also pointed out that searching contacts or approaching the conversation through other parts of the app can sometimes expose the fact that a chat is locked, even when the normal folder is hidden.

So I wouldn't describe Chat Lock as invisible. It's simply much easier to miss during ordinary use than most people realise.

There are also many legitimate reasons to lock a WhatsApp conversation. Financial information, work, private family issues or simply wanting another person who borrows your phone not to read a chat are all reasonable examples.

If hidden chats, messages and broader phone activity are the main concern, Spynger is the monitoring app I’d start with. It gave me the strongest overall balance of supported messages, app information and location in one dashboard during testing. My Spynger review goes through exactly what I could see.

19. Signal

Signal is built around private communication rather than pretending to be another type of app.

It offers end-to-end encryption, disappearing messages, View Once media, usernames and privacy controls around notifications and the app screen.

My wife spotted Signal immediately as a messaging app. What she couldn't tell from the phone was what had previously happened inside a disappearing conversation.

I would be particularly careful about calling Signal a cheating app. Journalists, security professionals, activists and ordinary privacy-conscious users choose it precisely because it collects and exposes less information.

Privacy and deception are separate questions. Behaviour around the app carries more weight than the logo.

20. Telegram

Telegram supports usernames, multiple accounts and a mix of public and private communication. Secret Chats add device-specific encryption and self-destruct timers.

I found Telegram itself completely ordinary to spot. The account structure was more interesting.

A second account could sit behind the same app icon, and a Secret Chat looks different only once you are inside Telegram and know what you are looking for. Telegram's own documentation notes that Secret Chats are identified with a lock icon and can use self-destructing messages.

For plenty of people, Telegram is simply where work groups, communities, friends or news live. I would pay more attention to an unexplained second identity than to Telegram being installed.

21. Tinder, Facebook Dating and Other Dating Apps

Tinder, Bumble, Hinge and Plenty of Fish remain among the most recognisable dating platforms.

Facebook Dating is easier to miss because it sits within Facebook rather than necessarily appearing as a separate dating-app icon. Somebody can have a distinct Dating profile while the only obvious app on the phone is Facebook.

An old download is weak evidence. People delete dating apps without deleting accounts, and app-store histories can hang around for years.

Recent usage, a current subscription, an active profile, dating notifications or repeated reinstallation tell you considerably more.

AI is also making this area harder to read. Dating platforms increasingly use AI to help with profiles, matching and safety, while generative tools make it easy to create convincing photographs, messages and even voices outside those platforms.

If the person behind an unfamiliar profile has never been met or independently verified, I would consider the possibility of impersonation or a romance scam as well as infidelity. If that is part of what you are dealing with, our guide to verifying someone's identity online can help you check whether the person behind an account is who they claim to be.

A convincing profile is no longer enough to establish that the person pictured exists in the way you assume.

If dating apps are the main concern, Spynger is again my strongest overall pick from the monitoring apps I tested. If the activity you are trying to surface is less obvious, particularly typed searches, screen activity or apps without a dedicated integration, mSpy is the other option I’d compare closely.

What I learned from hiding the apps in plain sight

The apps I expected my wife to spot were not always the ones she noticed. The explicitly disguised apps were convincing from the Home Screen, but several became easier to identify once she used the full installed-app list or Settings. Mainstream features such as WhatsApp Chat Lock and Samsung Secure Folder were almost the reverse: the apps themselves looked completely ordinary because they were ordinary, while the private activity sat one or two layers further down.

The second Instagram account was another good example. There was no second suspicious Instagram icon to find. Until she opened the account switcher, the phone looked exactly as it normally would.

AI companion apps created a different problem. They were not necessarily hidden at all. The name and icon simply did not tell her how intimate the relationship inside the app could become.

After testing all of them, the biggest lesson was that the technology itself is only one part of the picture. I would look for patterns across apps, accounts, subscriptions, second numbers, payments and changes in how somebody uses their devices rather than treating one icon as proof of anything.

I would also pay attention to what is happening on your side of the relationship. If you are seeing unfamiliar logins, permissions you did not grant, apps you did not install or a partner knowing things they should not know, our guide to signs someone may be snooping on your phone explains what to check. At that point, it is no longer only a question of infidelity. It is a digital safety issue too.

If the concern goes beyond one unfamiliar app, our how to catch a cheater page looks at the wider signs, digital evidence and other ways to work out what is happening.

If you already know you want more visibility from the phone itself, see my tested comparison of apps to catch a cheating partner. For most people, Spynger and mSpy are the two I’d start by comparing, depending on the kind of activity you are trying to uncover.