HiCalculatorPRIVATE BY DESIGN • FOR iPHONE
Private, by design. Hidden in plain sight.
A working calculator with a private vault behind your passcode.
Demo code · 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 adds unlimited file hiding, Decoy Vault, private bookmarks, note attachments, encrypted backup and restore, and security reports. Purchases are managed through the App Store.
CHOOSE YOUR SPACE
Start simple. Unlock more when you need it.
No confusing plans. Free keeps the essentials close; Pro opens the quieter corners.
| Features | Free | Pro |
|---|---|---|
| Decoy passcode | — | ✓ |
| Media (Unlimited) | — | ✓ |
| Notes (Unlimited) | — | ✓ |
| Contacts (Unlimited) | — | ✓ |
| Passwords (Unlimited) | — | ✓ |
| Private browser bookmarks | — | ✓ |
| Note attachments (up to 5 files) | — | ✓ |
| Encrypted backup & restore | — | ✓ |
| Security reports | — | ✓ |
REVIEW CAROUSEL PREVIEW
A space for real feedback.
“A calculator that keeps its second life quietly out of sight.”
- Leo“Simple on the outside, thoughtfully private inside.”
- Sam“Useful enough to open every day—and that’s the clever part.”
- Alex Ward“It feels calm, focused, and refreshingly uncomplicated.”
- Linh“Privacy without making a big scene about it.”
- Will King“The details feel deliberate, from the vault to the decoy space.”
- Ben“Exactly the kind of utility app I like: quiet and practical.”
- Jack Cole“A familiar interface with a genuinely useful private side.”
- Zac Frost“Clean design, clear purpose, no unnecessary noise.”
- William“It turns an everyday tool into a little more peace of mind.”
- Max GreyTRANSPARENT 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 →