PassBy — Password Notebook
A simple password notebook
Only for iPhone
$0.99
iPhone
PassBy is a simple password notebook. Keep each entry in four fields: title, account, password and notes. Organize entries into folders and find them with search.
Generate random passwords with lowercase letters, uppercase letters, numbers and symbols. The default is 16 characters; the slider covers 8–24, and you can enter a longer length up to 4096. Copy a password and paste it into another app.
Your notebook locks whenever you leave PassBy. Face ID or Touch ID is required to reopen it. Passwords remain hidden until you choose to reveal them. Copies stay on this iPhone and expire after 60 seconds.
Sign in through Tenon Account using Apple or email. Your iPhone remembers your sign-in and securely renews account sessions; reopening the notebook still requires Face ID or Touch ID. Tenon manages your sign-in methods; it does not receive notebook contents or recovery keys. Your notebook is encrypted on your device using AES-256-GCM before syncing to the private storage of your Apple Account.
Save your recovery key outside PassBy. PassBy asks you to confirm part of it before your notebook opens, and Settings can show it again after another Face ID or Touch ID check. You need it on a new iPhone or when your local key becomes unavailable. The developer cannot recover a lost key or decrypt your notebook.
Deleted passwords stay encrypted in Recently Deleted on your iPhone for 30 days, including those deleted on the web or another device.
When your iPhone is not nearby, open passby.tenon.asia on a trusted computer. Sign in with Tenon and authorize the Apple Account used for your notebook. Use your recovery key to authorize that browser once. An authorized browser can then reopen during a valid Tenon session. Leaving the window locks the notebook. Browser authorization can be removed in Settings.
Swipe down to keep an encrypted local draft while you switch apps. Tap New password to resume it. Save when finished, or Cancel to discard the draft. PassBy supports English and Simplified Chinese, light and dark appearances, and adjustable text sizes.
PassBy has no subscriptions, in-app purchases or ads. Requirements: iOS 17 or later, a device passcode, Face ID or Touch ID enrollment, an Apple Account signed in to iCloud, and a Tenon Account. Screen recording and mirroring prevent unlocking. Cold launch checks your Apple storage identity. This version does not provide AutoFill.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Adds Terms of Service. About now links the Privacy Policy, Terms of Service and feedback. The sign-in area is titled Sign in to PassBy and links the Tenon Account privacy notice. The full PassBy logo replaces the old mark.
The developer, Zeng Deyang, 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 Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- Identifiers
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Zeng Deyang
- Size
- 3.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English and Simplified Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Zeng Deyang
