🔢 CALCULATOR PRO+ — THE CALCULATOR THAT KEEPS YOUR PRIVATE LIFE PRIVATE

Calculator Pro+ looks and works like a normal calculator. Enter your secret PIN on the keypad and unlock a completely hidden world — private SMS in-app calls chats and media invisible to everyone else.

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🧮 HIDDEN INSIDE A REAL CALCULATOR

Dial your secret PIN on the keypad to open your private vault — no swipes no obvious unlock screens. To everyone else it's just a calculator that really calculates.

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🔒 MULTI-LAYER SECURITY

• PIN lock & fingerprint unlock
• Fake PIN — decoy shows empty inbox to anyone who asks
• Auto-lock on screen off or idle timer
• Shake-to-close for instant privacy in public

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💬 PRIVATE MESSAGING — TWO WAYS

── Free App-to-App Messaging ──
When both sides use Calculator Pro+ messages travel over the app's own private network — no SMS no carrier charges. Free over Wi-Fi or mobile data.
• Smart reply suggestions
• Disappearing messages — 1 hour to 3 months
• Delete for Everyone — both sides instantly

── Hide Normal SMS & MMS (with our free AdvanceSMS app) ──
Android only lets your default SMS app hide text messages so Calculator Pro+ works together with our free companion app AdvanceSMS. Set AdvanceSMS as your default SMS app once — after that messages from your private contacts go straight into the Calculator Pro+ vault and never show up in your phone's normal inbox. Replies go out as normal SMS with no sign you are using a hidden app.

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📞 IN-APP VOICE & VIDEO CALLS

Voice and video calls between Calculator Pro+ users over the internet — no carrier minutes no native call log trace no SIM required. Full-screen incoming call even on a locked screen. Bluetooth and speakerphone supported.

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📵 SMS & CALL BLOCKER

Block unwanted contacts silently through the app. All blocked activity logged privately inside your vault.

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☁️ GOOGLE DRIVE BACKUP & RESTORE

Auto-backup on a daily weekly or monthly schedule. Restore everything in one tap when you switch phones or reinstall the app. Local backup to device storage also supported.

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📱 VIRTUAL NUMBERS

Buy a temporary number inside the app and contact anyone without revealing your real phone number.

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🎨 FULL CUSTOMISATION

Wallpaper themes colour themes dark mode custom bubble colours fonts per-contact ringtones wallpapers and 300+ emoji.

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✅ WHY CALCULATOR PRO+

✔ Real working calculator — zero suspicion
✔ Fake PIN decoy inbox
✔ Free app-to-app internet messaging — no carrier charges
✔ VoIP calls — no native call log trace
✔ Disappearing messages & Delete for Everyone
✔ Normal SMS/MMS hidden via free AdvanceSMS companion app
✔ Google Drive auto-backup & one-tap restore
✔ Virtual numbers to mask your real phone number

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⭐ UPGRADE TO PRO

Go ad-free and unlock premium themes custom bubble styles and unlimited colour and font customisation — available as an auto-renewing subscription.

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ℹ️ GOOD TO KNOW

• Hiding the app icon: on Android 9 and below you can hide the icon completely and open the app through a secret browser link. On Android 10 and above Android requires the icon to stay visible — it simply appears as a normal calculator.
• Hiding normal SMS requires the free AdvanceSMS app set as your default SMS app. App-to-app messaging and calls work without it.

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📲 Download Calculator Pro+ — the messaging app that doesn't look like one.