Our pick for the best Android privacy app of 2026 is My NoteVault — and you should know before reading any further that we make it. It is an Android notepad that hides an encrypted vault, with an optional end-to-end encrypted cloud called Cloud Space. Below is why we rank it first, what four alternatives do better, and the five checks that matter more than any ranking, ours included.
Disclosure. My NoteVault is built and owned by ZeengoCorp Innovations, the company publishing this article. We have not lab-tested the other apps. Every statement about them comes from their makers' own documentation, linked in the sources at the end, and nothing on this page is sponsored.
Why does phone privacy matter more in 2026?
Because almost everything a phone captures now ends up in someone's cloud by default, and the companies running those clouds can usually read what they store. That is convenient, and often harmless. It also means your most private photos and files are only as private as that company's policies, its security and the governments it answers to.
The scale is easy to underestimate:
- More than 1.5 billion people use Google Photos every month, and it holds over 9 trillion photos and videos, according to the figures Google published for the app's tenth anniversary in May 2025.
- Google One, Google's paid storage plan, passed 150 million subscribers in 2025, as Google told Reuters.
- Android runs about two in three smartphones worldwide — 67% in August 2026, according to StatCounter.
So who uses the cloud today? Practically everyone with a smartphone. Backup is switched on during setup, the camera roll syncs in the background, and most people never open that setting again.
Can cloud storage companies read your files?
In the mainstream services, yes, by design. Google and Microsoft encrypt the files you store with them, but by default they manage the encryption keys themselves, so their own systems can decrypt your files. That is exactly how Gemini in Google Drive and Copilot in OneDrive are able to read and summarise your documents for you.
This is not a scandal; it is how those services are built, and it powers useful features. But it draws a clear line. Encryption "at rest" protects your files from someone who steals a disk from a data centre. It does not protect them from the company holding the keys, from anyone who gets into your account, or from a legal demand served on that company.
What happens when a government asks?
In February 2025, Apple stopped offering Advanced Data Protection — the setting that makes most iCloud data end-to-end encrypted — to new users in the United Kingdom, following a UK government demand for access to encrypted data. Apple said it has never built a backdoor into its products and never will, and withdrew the feature in the UK rather than weaken it.
The lesson is not really about Apple or the UK. It is that end-to-end encryption is the property worth checking for, because it is the only kind of cloud storage where the provider holds files it cannot read, and so cannot hand over readable copies of them.
Do data breaches still matter?
They do. IBM's 2025 Cost of a Data Breach report puts the global average cost of a breach at $4.44 million. Every company that can read your files is a company whose breach could expose them. The fewer parties able to read your private files, the fewer places they can leak from.
What should a privacy app actually do?
Five things: encrypt the contents of your files rather than just hiding them, make the key from your password on your own phone, refuse to let anyone reset your password for you, say plainly what leaves the device, and tell you what happens when you uninstall or change phones. Everything else is decoration.
- Encrypted, not just hidden. A gallery's "hide" option or a .nomedia file only removes a photo from view. The file itself is unchanged, and any file manager can open it. Encryption rewrites the file so it is unreadable without the key.
- The key is made on your phone. If the key comes from your password on the device, there is no copy on a server to steal, leak or hand over.
- Nobody can reset your password. It sounds like a drawback, and it is a real trade-off. But a company that can reset your vault can also be made to open it.
- It names what leaves the phone. Ads, analytics and crash reports are normal in free apps. A trustworthy app lists them and says what they receive.
- It is honest about uninstalling. Some apps delete everything when removed; others keep a cloud copy. Neither is wrong, but you should find out which before it matters.
The best Android privacy apps in 2026
Each of the five below solves a real version of the problem. They are in the order we would recommend them for protecting private photos and files on an Android phone, judged on the five checks above: documented encryption and a lock of its own count for more than convenience.
1. My NoteVault — best overall for private photos and files
My NoteVault opens as a working notepad: notes, checklists, labels and home-screen widgets. Type a secret word you choose into its search bar and the vault's unlock screen appears; your vault password opens it. On the home screen, the app is simply labelled "Notes".
- A disguise that survives being opened. Anyone who opens the app finds a real notepad, not a calculator that invites a second look.
- Real encryption, with keys made on the phone. Vault files are encrypted with AES-256 and vault databases with SQLCipher. Your password becomes a key on the phone through PBKDF2-HMAC-SHA256 with 100,000 iterations, and every vault gets its own key.
- No account and no reset. ZeengoCorp cannot reset a vault password. Instead, you keep a recovery code and a printable recovery kit, off the phone.
- A cloud that cannot read your files, only if you want one. Cloud Space encrypts each file on your phone with AES-256-GCM before it uploads, and the keys never reach our servers, which hold only ciphertext, file sizes and dates. You can also open it in a browser at space.mynotevault.in.
- The core is free. The notepad, unlimited vaults, hiding photos, videos, documents and whole folders, the in-vault camera and encrypted transfers of up to 10 files or 100 MB are free, with ads in the notepad. Premium costs $1.49 a month.
Best for: anyone on Android who shares a phone, hands it over often, or wants private files to look like nothing at all.
2. Samsung Secure Folder — best for Samsung Galaxy owners
Samsung describes Secure Folder as a private, encrypted space on Galaxy phones, built on its Knox security platform and opened with a PIN, pattern, password or biometrics. It is only available on Samsung phones, and its icon is visible on the phone rather than disguised.
Best for: Galaxy owners who want a separate, locked space on the phone and do not mind that its presence is obvious.
3. Files by Google Safe folder — best free, on-device option
Files by Google, which comes with many Android phones, includes a Safe folder protected by its own PIN or pattern, kept on the device. Google's help page is plain about the trade-off: if you forget the PIN or pattern, you cannot get the files back. It needs Android 8.0 or later.
Best for: a quick, free place for a handful of documents, with no cloud copy at all.
4. Google Photos Locked Folder — best if you already live in Google Photos
Locked Folder moves chosen photos and videos out of your main Google Photos grid and behind your phone's screen lock. It is built in and costs nothing extra. Google's own help page sets out two limits worth knowing. You cannot give it a separate password, so anyone who knows your phone's PIN can open it. And if backup is off, its contents are deleted when you reset the phone or clear the Photos app's data. If you turn backup on, the copy is stored in your Google account; the help page does not describe that copy as end-to-end encrypted.
Best for: people who already use Google Photos and mainly want sensitive pictures out of the main feed.
5. Proton Drive — best end-to-end encrypted cloud across devices
If what you need is a full cloud drive — on Android, iPhone and a computer, with sharing — Proton Drive encrypts files end to end, so Proton cannot read them. It requires a Proton account, and it is a cloud drive rather than a hidden vault: it makes no attempt to disguise itself on your phone.
Best for: people who want encrypted cloud storage on every device, including iPhone, and the ability to share files.
How do these privacy apps compare?
| My NoteVault | Samsung Secure Folder | Files by Google Safe folder | Google Photos Locked Folder | Proton Drive | |
|---|---|---|---|---|---|
| Looks like | A working notepad | A visible "Secure Folder" | Part of Files by Google | Part of Google Photos | A cloud drive |
| Lock | Its own vault password (fingerprint, PIN or pattern with Premium) | PIN, pattern, password or biometrics | Its own PIN or pattern | Your phone's screen lock | Proton account password |
| Encryption the maker documents | AES-256 vault; Cloud Space end-to-end (AES-256-GCM) | Encrypted space on Samsung Knox | Not described on Google's help page | Not described on Google's help page | End-to-end |
| Cloud copy | Optional, end-to-end encrypted (Cloud Space) | — | None | Optional, in your Google account | Yes: it is a cloud |
| Runs on | Android 7.0 and newer | Samsung Galaxy phones | Android 8.0 and newer | Android and iPhone | Android, iPhone, computers, web |
Why do we rank My NoteVault first?
Because it is the only option here that pairs the five checks with a disguise: real encryption with the key made on your phone, no password reset by anyone, a published list of what leaves the device, a cloud backup you can choose without handing over readable files — and an app that still looks like a notepad when someone actually opens it. Proton Drive meets the checks too, but it is a cloud drive that announces itself on your phone, needs an account, and is not built to hide files on the device.
The others each win somewhere, and you should pick them where they do. Locked Folder costs nothing extra if you already live in Google Photos. Safe folder is free and simple. Secure Folder comes from Samsung itself, on Galaxy phones. Proton Drive works on iPhone and shares files, which Cloud Space does not.
Abhishek Rajput, who founded ZeengoCorp, put the reasoning behind the app this way:
"Most of us keep our whole lives on one phone, and most apps are built as if that phone will never be handed to anyone else. We built My NoteVault because privacy should not depend on trust: your photos and documents are encrypted on your own phone with a key made from your password, and we never receive that key or readable copies of those files. We cannot open your vault — and neither can anyone who picks it up."
What does My NoteVault not do?
Every benefit above has a cost, and you should weigh them before installing:
- No iPhone version, and none is planned. My NoteVault is Android only.
- No password reset by us. Lose both your password and your recovery code, and that vault stays locked for good.
- Uninstalling deletes your local vaults, because the app keeps them in its private storage and opts out of Android's cloud backup. Back up first, to Cloud Space or with an encrypted transfer.
- Ads in the free notepad. Inside the vault, the only ad is a rewarded one you choose to watch. Premium removes ads.
- It cannot protect an unlocked phone with the vault open, in someone else's hands. No app can; close the vault first.
- Cloud Space is storage, not sync. It does not create sharing links, search inside your files or sync in the background.
Is Cloud Space worth paying for?
If the only copy of your private files lives on one phone, that phone is a single point of failure: a drop, a theft or a factory reset ends the collection. Cloud Space gives you a second copy that we cannot read, without creating an account. It is one payment per year, includes Premium in the app for that year, and never renews automatically.
| Cloud Space plan | Price per year |
|---|---|
| 1 GB | $19.99 |
| 5 GB | $24.99 |
| 10 GB | $34.99 |
| 50 GB | $79.99 |
| 100 GB | $149.99 |
Prices are in US dollars. Each Cloud Space works with one phone and one browser at a time, and after the year ends your files stay readable and downloadable for 30 days. Cloud Space is sold inside the My NoteVault app from version 3.5.0, live on Google Play and the Galaxy Store since October 2026; current availability is on the Cloud Space page.
Frequently asked questions
Is My NoteVault free?
Yes. The notepad, unlimited vaults, hiding photos, videos, documents and folders, the in-vault camera, recovery codes and encrypted transfers of up to 10 files or 100 MB are free, with ads in the notepad. Premium, at $1.49 a month, removes ads and adds fingerprint, PIN or pattern unlock for the vault, backup and restore, and an intruder photo.
Can ZeengoCorp see my photos or files?
No. Vault files are encrypted on your phone with a key made from your password, and that key never leaves the phone. Files you put in Cloud Space are encrypted on your device before upload, and our servers never receive the keys. Ads, analytics and crash reporting receive standard device data, never your notes or files.
What is the safest way to hide photos on Android?
Use an app that encrypts the files rather than only hiding them from the gallery, keep your recovery details somewhere other than the phone, and close the vault before you hand your phone to anyone. If you want a backup, choose one that is end-to-end encrypted.
Does My NoteVault work without internet?
Yes. The notepad, the vault, imports and encrypted transfers all work offline. Only ads, analytics and the optional Cloud Space use the network.
Get My NoteVault
My NoteVault is free on Google Play and the Samsung Galaxy Store for Android 7.0 and newer. Download it from mynotevault.in, or read how its encryption works first. For the full product overview, see the My NoteVault portfolio page.
Sources
- Google, "10 tips for 10 years of Google Photos" (May 2025): blog.google
- 9to5Google, "Google One passes 150 million subscribers" (May 2025, reporting Google's statement to Reuters): 9to5google.com
- StatCounter, mobile operating system market share worldwide: gs.statcounter.com
- Google, encryption in Google Workspace (whitepaper): services.google.com
- Microsoft, service encryption in Microsoft 365: learn.microsoft.com
- Google, Gemini in Google Drive: support.google.com
- Microsoft, summarise your files with Copilot in OneDrive: support.microsoft.com
- Apple, "Apple can no longer offer Advanced Data Protection in the United Kingdom to new users": support.apple.com
- TechCrunch, Apple pulls iCloud end-to-end encryption feature for UK users (February 2025): techcrunch.com
- IBM, Cost of a Data Breach Report 2025: ibm.com
- Google, hide sensitive photos and videos in Locked Folder: support.google.com
- Google, protect your files with Safe folder: support.google.com
- Samsung, Secure Folder: samsungknox.com
- Proton, Proton Drive security: proton.me
- My NoteVault, security and encryption: mynotevault.in/security
Written by
Abhishek Rajput
Founder & CEO, ZeengoCorp Innovations
Abhishek Rajput founded ZeengoCorp Innovations, the global holding and operating company behind Dial Master and My NoteVault. He leads product strategy, capital deployment, and go-to-market across the portfolio.
Frequently Asked Questions
Our pick for the best Android privacy app of 2026, and the honest case for it: what cloud services can read, the five checks a privacy app should pass, five options compared from their makers' own documentation, and what My NoteVault does not do.
This article was written by Abhishek Rajput, Founder & CEO of ZeengoCorp Innovations. Abhishek Rajput leads the company's venture incubation strategy and product development, including the flagship product Dial Master.
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