Bulbul is a vault with no master password. Every code you type opens a completely different space — photos, notes, web, and files. No one knows the vault even exists.
Bulbul is a private file vault with no master password.
Most "lock" apps hide everything behind one password. Crack that one secret and it's all over. Bulbul is built differently. The code you type IS the vault. A different code opens a completely different space.
Like Schrödinger's cat, until you enter the right code, no one can tell what's inside — or even whether the vault exists at all.
■ A different code, a different space
- 1234, 0000, 9876 — any digits you choose instantly open a fresh vault.
- No "main" or "decoy." Every space is equal and first-class.
- There is no "unlock screen." What you type is the destination.
■ Everything happens inside the vault
- File manager: folders, documents, images, PDFs — list and grid views.
- Markdown editor: write notes inside the vault, then flip to a clean reader mode.
- Camera: photos and videos save directly into the active vault, never to your camera roll. Burst-style multi-shot included.
- Built-in browser: each vault has its own session. Search history and bookmarks never leak between vaults.
- Share extension: send files into a vault directly from other apps.
■ Security that respects how you actually work
- Optional Face ID / Touch ID gate before a vault opens.
- iCloud sync is per-vault. You decide which spaces stay strictly on-device.
- Escape Action: respond to a trigger (such as a shake) by closing the vault instantly.
- Backup as an encrypted-friendly archive whenever you need it.
■ Made for people who
- Share a device with family or coworkers but want personal files cleanly separated.
- Want work files, family photos, project notes, and receipts kept in their own contexts.
- Don't love the idea of "one password protects everything."
■ Important
- A forgotten code cannot be recovered. That vault is, by design, indistinguishable from one that never existed. This is the security model — not a bug.
- All data lives on your device and the iCloud account you explicitly opt in to.
Requires iOS 26 or later. Universal app for iPhone and iPad.
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- New: Home Screen widget. Add a small Bulbul widget, set its vault code, and tap once to open that vault straight from the Home Screen.
- The widget hands off only an encrypted token, so your codes never appear in plaintext logs or backups.
- Smoother return from background — no extra passcode flicker after a widget tap or app switch.
Version 2.3.0
The developer, heewook shin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
