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 real calculator until your secret passcode opens the private sanctuary behind it.
Camouflage that works
Use a fully functional calculator every day. Enter your secret passcode and tap % to instantly transition from normal calculations to your encrypted vault.
Decoy Vault
A secondary passcode unlocks an isolated decoy environment, keeping your primary vault completely hidden under pressure.
More than a photo vault
Keep photos, videos, encrypted notes with attachments, passwords, and private contacts organized together in one sanctuary.
Private browsing
Browse sensitive websites in isolated sessions with custom tab management, private bookmarks, and zero residual search history or cache.
Security awareness
Instant auto-lock, failed attempt logs, and comprehensive security activity reports give you full visibility over access.
Encrypted backup
Protect your vault with zero-knowledge, password-encrypted backups. Keep full control over your private files on your own device or local storage.
Private iCloud sync
Seamlessly copy encrypted backups to your personal iCloud account. Move between iPhones or restore your vault without relying on third-party servers.
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 or hidden traps. Free keeps the essentials close; Pro unlocks complete freedom and protection.
Free Plan
Basic calculator camouflage and core vault storage for light everyday privacy.
- Working Calculator Camouflage
- Primary Vault Passcode
- Basic Photo & Note Storage
Pro Version
Unlimited storage, Decoy Vault, private browser bookmarks, and encrypted backups.
- Unlimited Photos, Videos, Notes & Passwords
- Decoy Vault Passcode
- Encrypted Backup & Restore
- Private Browser Bookmarks & Attachments
| Compare Capabilities | Free | PRO VERSION |
|---|---|---|
| 🛡️ Core Camouflage & Access | ||
| Functional Calculator Surface | ✓ | ✓ |
| Decoy Passcode & Isolated Vault | — | ✓ |
| Auto-Lock & Security Reports | — | ✓ |
| 📁 Storage & Content Limits | ||
| Media Storage (Photos & 4K Videos) | Limited | Unlimited |
| Encrypted Notes & Attachments | Limited | Unlimited + 5 Attachments |
| Passwords & Private Contacts | Limited | Unlimited |
| 🔐 Private Browser & Cloud Backup | ||
| Incognito Web Browsing | ✓ | ✓ |
| Private Browser Bookmarks | — | ✓ |
| Encrypted Backup & iCloud Sync | — | ✓ |
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 get help from 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 →Support
Get help by email without sharing your passcode, encryption key, or private content.
Get support →