HiCalculatorPRIVATE BY DESIGN • BUILT FOR iPHONE
Your Private Digital Sanctuary. Hidden in Plain Sight.
A real calculator on the surface. A discreet personal vault behind your passcode—built to keep private photos, videos, notes, passwords, contacts, and browsing separate from everyday view.
Website demo code
Enter 1991, then tap %.
Nothing entered here is stored or sent.
Private by design.Three quiet promises.
Your vault stays on your iPhone.
Create encrypted backups only when you choose.
Private content is not uploaded to HiCalculator servers.
ONE DISCREET APP. MANY PRIVATE SPACES.
Privacy that blends into everyday life.
HiCalculator works as a calculator until your passcode opens the space behind it.
Camouflage that works
Use a functional calculator every day. Your passcode and the % key reveal the private vault behind it.
More than a photo vault
Keep photos, videos, notes with attachments, passwords, and private contacts together on your iPhone.
Decoy Vault
A separate passcode can open an isolated space while your main vault remains out of view.
Private browsing
Keep sensitive tabs and bookmarks separate instead of mixing them into Safari history.
Security awareness
Auto-lock, failed-attempt records, and security reports add visibility around access.
Encrypted backup & iCloud
Create a password-protected backup, export it, or optionally copy it to your personal iCloud when you choose.
WHY HICALCULATOR EXISTS
Privacy is a boundary—not a luxury.
Personal devices should leave room for personal space. HiCalculator keeps that boundary quiet: a useful calculator in public, a private vault only when you ask for it.
Use the essentials for free. Pro expands limits, unlocks Decoy Vault, encrypted backup and restore, private bookmarks, attachments, security reports, and an ad-free experience. Purchases are managed through the App Store with RevenueCat.
TRANSPARENT BY DEFAULT
Important information, in its own place.
Read how HiCalculator handles privacy, what applies when you use the app, or contact us directly for support.
Privacy Policy
Understand on-device storage, backups, purchases, ads, and deletion.
Read policy →Terms of Service
Review account-free use, passcode responsibility, backups, purchases, and acceptable use.
Read terms →Contact & Support
Get help by email without sharing your passcode, encryption key, or private content.
Contact support →