Calculator Pro+ - Private SMS

Private SMS Box

Contains adsIn-app purchases

About this app

🔢 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. On Android 9 and below, hide the
app icon completely and access it via a secret browser link. On
Android 10 and above, the app stays visible as a normal calculator.

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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

── Hide Native SMS & MMS (via free AdvanceSMS app) ──
Set AdvanceSMS as your default SMS app — it silently routes private
contacts' messages into Calculator Pro+'s vault. Never visible in
your phone's native inbox. Replies sent as normal SMS with no
indication you are using a hidden app.

── 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, no device traces.
Free over Wi-Fi or mobile data.
• Smart reply suggestions
• Disappearing messages — 1 hour to 3 months
• Delete for Everyone — both sides, instantly

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📞 𝗜𝗡-𝗔𝗣𝗣 𝗩𝗢𝗜𝗣 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, Colors 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
✔ App icon hidden from launcher on Android 9 and below
✔ Fake PIN decoy inbox
✔ Native SMS/MMS hidden via free AdvanceSMS companion app
✔ Free app-to-app internet messaging — no carrier charges
✔ VoIP calls — no native call log trace
✔ Disappearing messages & Delete for Everyone
✔ 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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📲 Download Calculator Pro+ — the only messaging app that doesn't
look like one.

Ratings and reviews

It doesnt work like it should. All of a sudden, all my messages are going to my regular inbox and not the app. Ive emailed them numerous times and the problem remains. Its one problem after another with this app. UPDATE: They fixed the above problem. However, theres a new problem. Calls from my hidden contacts go to my regular call log. Also, IT RINGS. It rings twice, then stops. When I go to the call log, there's the name and phone number of my hidden contact, defeating the purpose of the app.

Paid for the advanced version to get rid of adds, but nothing changed but my back account balance. What the heck!? Also, when trying to add my number to get unlimited free messages, the verification text never arrives, so I can't do it! App works well overall, but lost money and wasted time trying to very myself make it frustrating to use.

I didn't like it because I had to change my default messaging service for this to work which defeats the purpose! Uninstalled it...Reinstalled it because all the other apps require me to do the same thing. I like how this free app works. Occassionally, it won't let me send a message and saves it as a draft and I haven't been able to find the draft folder yet but other than that, it's pretty user friendly!

What’s new

• Customize wallpaper blur and brightness.
• Send view-once photos & videos with screenshot protection.
• Schedule messages with improved date & time pickers.
• Enhanced privacy with screenshot blocking and hidden previews.
• Add or edit captions on photos and videos.
• Faster performance and more reliable Google Drive backups.