Retro Calculator: Photo Vault
Secret vault for pics & videos
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
A real retro calculator with a secret. Type your code and your hidden photos, videos and files open, encrypted on your iPhone. No account, no ads, no tracking.
Retro Calculator is a hidden photo vault disguised as a working 80s-style calculator, with a flashlight, compass and unit converter in the same retro LCD look. Type your code and it opens your private vault: photos, videos and files, encrypted on your iPhone.
Passport scans, tax papers, the ring you have not given yet, pictures you would rather keep off the camera roll. Draw a pattern, and each pattern opens its own vault.
No account, no ads, no analytics. Free for 2 vaults, 50 photos and files, and 5 videos. Pro (unlimited vaults, photos and videos, the Bench look, duress mode, sharing, device sync) is one payment of $27.99 or $3.99 a month.
HIDE IT IN PLAIN SIGHT
Pick a normal-looking icon from the free icon set. Anyone glancing at your home screen sees a utility app named "Utility Kit". Tapping it opens the unlock screen.
The disguise works, and it is free. Choose Calculator, Compass, Unit Converter or Flashlight, and the app opens as that tool, fully usable. You get into the vault with a secret entry only you know, such as a code on the calculator.
LOCKED WITH A PATTERN
Draw a pattern on a 5x5 grid to open a vault. Each pattern opens a different vault, and the app never shows a list of them. Every vault also gets its own 12-word recovery phrase. Write it down: if you lose both the pattern and the phrase, nobody can recover your data, including us.
ENCRYPTED ON YOUR DEVICE
Photos, videos, files, thumbnails, filenames and notes are encrypted on your iPhone with AES-256-GCM before they are stored. The vault locks when you leave the app, and the app switcher shows a blank or disguised screen, never your photos.
PRIVATE BY DESIGN
No account. No analytics. No ads. No third-party SDKs. Utility Kit does not collect any data.
BACK UP TO YOUR OWN ICLOUD DRIVE
Backup is free and on by default. Only encrypted files are written to your iCloud Drive, so iCloud holds ciphertext it cannot read. After each backup the app test-restores a sample and shows you when it was last verified. If iCloud Drive is off, the vault keeps working on your phone.
SECURE CAMERA AND IMPORT
Shoot photos and video inside the app without touching your camera roll. Import from Photos, Files or the share sheet. After importing you can delete the originals from Photos; iOS keeps deleted items in Recently Deleted for 30 days, so empty that album too if you want them gone sooner.
FREE
Up to 2 vaults, 50 items (photos and files together) and 5 videos. Pattern unlock, recovery phrase, encrypted iCloud backup, secure camera, the full icon set and all four working disguises: calculator, flashlight, compass and unit converter.
PRO
Unlimited vaults, photos and videos, duress mode (a decoy pattern that opens a decoy vault and removes the other vaults' keys from the phone, with iCloud backups kept for recovery), sharing and device sync.
SHARING
Share a whole vault or one folder as an encrypted file. The recipient opens it in Utility Kit with the share phrase you give them. You can set an open limit, an expiry date and a no-export option. These limits are enforced by the app, not by the encryption, so share only with people you trust.
Pro plans: monthly $3.99, yearly $13.99, or lifetime $27.99, one time. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel in your Apple ID settings. Payment is charged to your Apple ID at confirmation of purchase.
Privacy policy: https://swellstackco.com/utilitykit/privacy.html
Terms of Use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New retro calculator icon and a new name: Retro Calculator. Satisfying retro key beeps (they follow your silent switch, and you can turn them off in Settings). Pro now includes a second look: matte black Bench. Minor fixes.
The developer, Benjamin Jacobs, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Benjamin Jacobs
- Size
- 5.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro Monthly $3.99
- Pro Lifetime $27.99
- Pro Yearly $13.99
- Copyright
- © 2026 Swell & Stack Co. LLC