How do cheaters hide things on their phone?
·Written by the developer of Stash
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Cheaters hide things on their phone the same way anyone keeps things private: they hide photos in the Hidden album, lock notes, lock or hide apps with iOS 18, archive or mute chats, use separate accounts, or move files into a vault app with its own PIN. Each method hides one layer and leaves another visible. Our pick of vault apps for that last method (we build it) is Stash: Calculator Photo Vault, which looks and works like a calculator.
That is the useful way to think about it, whichever side you are on. A method that hides a photo does nothing for a notification, a purchase record or a location history. And every method leaves at least one trace: an album, a folder, an app, a storage entry or a setting.
Below is the method-by-method overview, then what a partner can and cannot see, and a section for people who suspect a partner.
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Six methods and what each leaves behind
| Best for | Method | What it hides | What still shows |
|---|---|---|---|
| Our pick | Vault app with its own PIN: Stash: Calculator Photo Vault | Photos, videos and files imported into the app, behind a PIN separate from the iPhone passcode | The app icon, its size in iPhone Storage, App Store purchase history, originals left in Photos until deleted |
| A few photos, built in | Hidden album | Photos and videos out of the Library, albums, widgets, Memories and Featured Photos | The Hidden album in Utilities; it opens with the iPhone passcode; it syncs to other devices on the same Apple Account |
| Private text | Locked notes | The text and attachments of a note | The note title stays visible in the list |
| Keeping an app's icon out of sight | iOS 18 app lock or hide | An app's content (lock) or its icon (hide) | A Hidden folder at the bottom of App Library; iPhone Storage; purchase history |
| Decluttering a chat list | Archived or muted chats | A conversation from the main chat list | The chat still exists in the app, and on any linked device |
| Separating activity | Separate accounts | Email, social or messaging activity under another login | The app itself, its notifications, and logins on shared devices |
Competitor details last checked: 2026-10-10, from each vendor's own pages.
Our verdict: for photos and files, a vault app with its own PIN, such as Stash (which we build), is our pick, because the iPhone passcode alone does not open it. For conversations, no storage method helps; notification settings and separate accounts are what matter there.
The built-in methods in detail
Hidden album. Touch and hold a photo or tap More (…) > Hide. Hidden items move to Photos > Collections > Utilities > Hidden (older iOS: Albums > Utilities). Since iOS 16 the album is locked by default with Face ID, Touch ID or the passcode (Settings > Apps > Photos > Use Face ID; older Settings > Photos). The Show Hidden Album toggle removes the album from Utilities altogether. There is no separate password, so anyone who knows the iPhone passcode can open it.
Locked notes. A note can be locked with the iPhone passcode or a separate Notes password under Settings > Apps > Notes > Password. The title of a locked note stays visible, and not every attachment type can be locked.
App lock and app hiding (iOS 18). Touch and hold an app, then choose Require Face ID. "Hide and Require Face ID" moves a third-party app into a Hidden folder at the bottom of App Library; hidden apps do not show notifications or appear in Search. Apple's own apps can be locked but not hidden. See how to hide apps on iPhone.
Notifications. Under Settings > Notifications > Show Previews, previews can be set to Always, When Unlocked or Never. Many people change this first, because a message preview on the Lock Screen is the most common way something is seen by accident.
Vault apps
A vault app keeps files in its own storage, not in the Photos library, behind a PIN that is separate from the iPhone passcode. That is the main difference from the Hidden album: knowing the phone's passcode does not open the vault. Some vault apps are disguised as a calculator or another ordinary tool.
The limits are concrete. Importing usually copies a file, so the original stays in Photos and then in Recently Deleted for about 30 days after deletion. The app is visible in App Library, in Settings > General > iPhone Storage with its size, and in App Store purchase history. A vault does not touch messages, calls or location data.
What a partner can and cannot see
With the iPhone passcode, a partner can usually open the Hidden album and Recently Deleted, see every installed app and its storage use, read per-app usage in Settings > Screen Time > See All App & Website Activity, and look at purchase history. With a shared Apple Account, Messages in iCloud and iCloud Photos also put conversations and photos on a shared iPad or Mac.
Without the vault PIN, a partner cannot open the contents of a vault app that encrypts its storage. They cannot read a locked note without the passcode or Notes password. They cannot open a hidden app without Face ID. What they can do is notice that these things exist.
If you suspect a partner
None of these methods is evidence by itself. A locked note, a Hidden album or a vault app is ordinary on many phones, used for documents, health information, gifts or photos someone simply does not want on the camera roll.
If trust is the issue, a direct conversation, or couples counselling, is usually more useful than a search through a phone. Reading another adult's phone without permission, or installing monitoring software on it, can be illegal in many countries, and this site does not recommend any such tool.
If you think someone has access to your own phone, run Safety Check (Settings > Privacy & Security > Safety Check, iOS 16 and later), and check the devices signed in to your Apple Account under Settings > [your name]. Apple designed Safety Check for people whose personal safety is at risk from domestic or intimate partner violence.
How Stash fits
Stash: Calculator Photo Vault belongs to the vault-app row of the table. It opens as a working calculator, and typing your PIN and = opens the vault. Photos, videos, PDFs, documents and audio are encrypted on the device with AES-256; the key stays in the iOS Keychain, and there is no Stash server, so the developer cannot see or recover your files.
A guest PIN opens a separate guest vault with only what you put there. The optional Intruder Log records failed attempts and can take a front-camera photo after a wrong PIN. Repeated wrong PINs lock the app for 30 seconds, then 5 minutes, then 30 minutes.
Stash leaves the same traces as any vault app: an icon, a size in iPhone Storage and an entry in purchase history. It protects files, not conversations.
FAQ
What is the most common way people hide things on an iPhone?
The Hidden album in Photos, because it is built in. It is also the easiest to open for anyone who knows the iPhone passcode.
Do hidden photos show up on other devices?
Yes, if iCloud Photos is on. Hidden photos sync to every device signed in to the same Apple Account and to iCloud.com, where they also sit in a Hidden album.
Can you hide an app completely on iPhone?
Not completely. iOS 18 can hide third-party apps in a Hidden folder in App Library, but the folder is visible, and the app still appears in iPhone Storage and in purchase history.
Is it legal to check a partner's phone?
It depends on the country and the situation. Accessing another adult's device without permission, or installing monitoring software, is illegal in many places. Ask a local lawyer if this matters to you.