WHO IT IS FOR
A separate place for private content
Calculator Lock is for iPhone owners who want more separation than the Photos Hidden collection provides. It does not lock other apps or remove originals from Photos automatically.
- Private photo organizationKeep selected photos and videos in folders outside the Photos library.
- Mixed sensitive filesStore documents and secure notes alongside media.
- Local-first privacyUse encrypted local storage without a Calculator Lock account or developer cloud.
BUILT-IN OR SEPARATE VAULT
Calculator Lock vs. the iPhone Hidden album
Apple’s Hidden collection is a good first step. A separate vault is useful when you need different access, folders, mixed file types, or a complete export.
| AREA | APPLE PHOTOS | CALCULATOR LOCK |
|---|---|---|
| Access | iPhone authentication | Visible Private Vault button plus vault code or optional Face ID |
| Organization | One system Hidden collection | Private folders for photos, videos, files, and notes |
| Storage | Inside the Photos library; iCloud Photos may sync it | Encrypted local app storage; no cloud sync at launch |
| Recovery | Uses your iPhone access model | Generated recovery key plus iOS biometric authentication |
| Export | Share or save selected Photos items | Individual, selected, and complete export for existing content |
Source for Apple behavior: Apple’s Hidden album guide and iCloud Photos documentation.
HOW ACCESS WORKS
How the visible Private Vault button works
Calculator Lock works as an everyday calculator. Tap the visible Private Vault button, then enter your separate vault code or use optional Face ID.
- 1
Use the calculator
Calculator Lock opens to a working calculator interface.
- 2
Tap Private Vault
The clearly labeled button opens a separate vault access screen.
- 3
Enter your vault code
Enter the code you created during setup, or use optional Face ID.
STORAGE, RECOVERY, EXPORT
Keep control of the full vault lifecycle
Photos, videos, files, notes, and folders
Keep mixed private content in one vault. Premium lets you add new items and folders; existing content remains accessible after Premium ends.
On-device encryption and local storage
Vault content and sensitive metadata are encrypted on your iPhone. There is no Calculator Lock account, developer content server, or cloud sync at launch.
Recovery you save
Calculator Lock generates a recovery key during setup and prompts you to save a copy. NaviStack does not receive it.
Existing content stays exportable
Complete Export includes notes and preserves folder structure. It remains available for existing content even when Premium is not active.
FREE AND PREMIUM
Calculator Lock Free vs. Premium
Existing content, recovery, export, organization, and deletion remain available without an active plan. Premium is required to add new items or folders.
| FEATURE | FREE | PREMIUM |
|---|---|---|
| Add new folders | Not included | Unlimited |
| Add new items | Not included | Unlimited |
| Recovery and Complete Export | Included | Included |
If Premium ends, existing content remains accessible, organizable, recoverable, exportable, and deletable. Adding new content requires Premium.
QUESTIONS
Private photo vault questions
What is a private photo vault app?
A private photo vault app stores copies of selected photos behind its own access flow. Calculator Lock encrypts vault content on the iPhone and opens it from a visible Private Vault button with a vault code or optional Face ID.
Is Calculator Lock the same as the iPhone Hidden album?
No. The Hidden album remains inside Apple Photos and uses iPhone authentication. Calculator Lock is a separate local vault with private folders, mixed file types, a recovery key, and complete export.
Does Calculator Lock upload my photos?
Calculator Lock has no developer content server, account, cloud backup, or cross-device sync at launch. Vault content stays in encrypted local storage on the iPhone.
Can I export everything after Premium ends?
Yes. Existing content remains available for complete, selected, and individual export after Premium ends. Complete Export includes notes and preserves folder structure.
What happens if I delete the app?
Deleting the app can permanently delete its local vault. Run Complete Export, open sample files, and verify the result before uninstalling.
Is Calculator Lock available now?
The website is live and the iPhone app is preparing for App Store release. This page will link to the official listing as soon as it is published.
Calculator Lock for iPhone
The website is live. The official App Store listing is coming soon, and this page will link to it as soon as Apple publishes the app.