CalcLockAt a glance: Compare CalcLock’s exact-equation workflow with Keepsafe’s PIN and biometric access, cloud storage and plan limits.
Different everyday entry methods
Keepsafe advertises a PIN screen with fingerprint or Face ID access. CalcLock uses an exact equation inside a working calculator, followed by two equals presses. Decide which entry sequence you can reliably repeat before importing a large collection.
A library that can include cloud storage
Keepsafe describes cloud backup, protected shared albums and phone-space features. Its product page lists a free Basic tier for 200 photos and a Premium tier for 10,000 photos. Check the current plan in your region, including trial renewal terms, before subscribing.
Be precise about the calculator product
Keepsafe also lists a separate Calculator product as Android-only. Do not assume its calculator branding describes the iPhone Photo Vault experience. This page compares CalcLock with Keepsafe Photo Vault; it does not claim the apps have identical platform support.
CalcLock’s current boundary
CalcLock uses AES-256-GCM for local vault files and its manifest, with a secret held in the device Keychain. It has not had an independent security audit. The current version has no export, sharing, backup restoration, sync or forgotten-equation recovery. Keep independent originals: losing the device or equation can mean losing access.
Which direction fits?
Keepsafe is worth evaluating when a backed-up photo library and sharing are priorities. CalcLock fits a more focused device-only routine, provided you keep the originals elsewhere. A private gallery is not a replacement for a verified plan to retain your files.
About this comparison
Reviewed 11 November 2026. Published by CalcLock, using its documented current implementation and the official source linked below. Competitor capabilities are developer-described, not independently tested here. Features and plans can change. No security ranking or guaranteed outcome is implied.
Questions, answered
Is Keepsafe unencrypted?
No. Keepsafe’s official product page claims AES-256 encryption on the device and in private backup. This comparison does not independently audit that implementation or rank it against CalcLock.