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Calculator Pro+ - Secure Messaging & SMS Hider

Experience discreet texting with hidden messages, spam blocking & a calculator disguise for ultimate privacy.

Calculator Pro+
  • 4.1.99 Version
  • 3.1 Score
  • 460K+ Downloads
  • In-app purchases License
  • 3+ Content Rating
Download Android APK (32.04 MB)
Old Versions
CONS

Requires installation of a third-party SMS app.

Loss of conversation history when switching apps.

Messages sometimes don't send or are delayed.

Notifications may not work as intended.

Calls still appear in regular call logs.

Occasional bugs causing messages to go to the main inbox.

Difficulty accessing hidden messages if app is masked.

Customer support responses may be slow or unhelpful.

Inconvenient requirement to change default messaging settings.

Are you in search of a secure messaging application that ensures your conversations stay private? Do you want to keep your SMS/MMS hidden from unwanted viewers? Fed up with spam inundating your inbox? Look no further than Calculator Pro+!

Calculator Pro+ is a secure and subtle app designed to conceal SMS/MMS messages from selected contacts behind the guise of a fully functional calculator interface. No one will recognize it as a hidden messaging application!

Secure & Private Messaging

Conceal messages to maintain the confidentiality of your personal conversations.

Designate any contact as a Private Contact to automatically store their messages within the app.

Your concealed SMS/MMS messages are safeguarded with a password-protected calculator.

Spam SMS Blocker

Prevent spam SMS and filter through incoming messages.

Personalize notifications with false alerts to guarantee total privacy.

Free Private Texting

Engage in complimentary secure messaging with fellow Calculator Pro+ users.

Send endless texts, photos, audio, and video messages, and even share your location.

Emoji Support

Communicate your feelings using over 300 emojis and stickers.

More Features:

Secret calculator application with a hidden vault.

Private text app for secure conversations.

Automatic backup of all your messages.

No visible app icon for added confidentiality.

Auto-close feature for enhanced security.

Note:

To access all features, set AdvanceSMS as your default SMS application on devices running Android 5 or higher.

Download Calculator Pro+ today to discover the optimal method for concealing your messages and enjoying private texting!

How to take backup and restore backup of messages ?

Take Backup:

On-Phone Storage:

Open application and export database from Settings >> Chat Settings >> Backup & Restore Messages >> Manual Backup >>

Export To External(Media & database both are exported)

Export To Internal(Only database are exported) 

On Google Drive:

Open application and export database from Settings >> Chat Settings >> Backup & Restore Messages >> Backup on Google Drive >> Select account >> Backup

Calculator Pro+

Restore Backup:

From Phone Storage:

Install “Calculator Pro+ – Private SMS” application.

Open application and Import database from Settings >> Chat Settings >> Backup & Restore Messages >> Restore Backup. It should show the database to import and also it should show two

Options 1 :Import from External(Media & database from where you exported)

Option 2: Import from Drive(Restore from Drive).

Select a database to restore messages.

From Google Drive:

Open the application and import the database from Settings >> Chat Settings >> Backup & Restore Messages >> Backup on Google Drive >> Select the account (same account on which you have taken backup) >> Restore

How to export MMS?

Open your conversation.

Click on the message which contains MMS.

It should open MMS viewer, now press menu where you can find “Save” option.

It will save Photo in SD Card. (SD CARD/psb/savedmedia)

How to get lost messages ?

Option-A:

If you have removed application then install “Calculator Pro+” again.

Open application and go to Settings.

Go to Backup and Restore Messages.

Click on “Restore Messages”.

Select latest backup from list. (It takes auto backup on every week, you can restore

latest backup)

Option-B:

If you have application already installed and want to move messages back to native application.

Open application.

Long press on conversation or contact

Select “Modify Contact”

Now click on “Delete Contact” which will give you option to move your messages to native application.

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Information
  • Version4.1.99
  • UpdateApr 23, 2025
  • DeveloperPrivate SMS Box
  • CategoryCommunication
  • Requires AndroidAndroid 5.0+
  • Downloads460K+
  • Package Namecom.privatesmsbox.calc
  • Signature3947fd356cba935ff035501d4184e288
  • Available on
  • ReportFlag as inappropriate
Old Versions
User Reviews
3.1 10 Reviews
5
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  • Mu 6
    Mu 6

    This app is incredible. The features are fantastic. However, I need the backup file in PDF format. The db$ format doesn’t convert to PDF easily.

  • Merri Chansley
    Merri Chansley

    It works great now! I had some issues at first but decided to give the team a chance to resolve them before leaving a bad review. They really came through and fixed everything! So happy with the outcome! 👍👍👍

  • Hassan Haroub
    Hassan Haroub

    The concept is fantastic and it works pretty well overall. There are some small issues. Not every message comes through the first time. Sometimes, I have to resend messages because they don't send properly. Occasionally, only part of the message gets delivered. I also prefer not using advanced messenger as the default. A few minor bug fixes would make it truly brilliant!

  • yogyata singh
    yogyata singh

    It sounds frustrating when messages don’t come through. Waking up to check for important messages and finding nothing is tough. Sending a message only to receive the unread ones makes it worse. It’s like a mystery every day, not knowing what you might have missed. Have you tried checking your app settings? Sometimes notifications get turned off. Also, restarting the app or your phone can help fix glitches. If problems persist, consider reinstalling the app. If nothing works, maybe reaching out to customer support could shed some light on the issue. You deserve smooth communication without that worry!

  • Barbara Wilson
    Barbara Wilson

    Everything is fantastic! The only issue is the network connection. An app update would really help improve things.

  • Leon Champion
    Leon Champion

    So frustrating. Everything started going to my regular inbox instead of the app. I reached out multiple times, but nothing changed. Just one issue after another with this app. Then they fixed that glitch, right? But guess what? A new problem popped up. Calls from my hidden contacts show up in my regular call log. It gets better. The phone rings twice and then cuts off. When I check the call log, there’s the name and number of my hidden contact staring right at me. Totally defeats the whole point of having the app in the first place.

  • Joseph Webster
    Joseph Webster

    This app is amazing and feels so secure. There's just one thing bothering me. When I use this app and switch to my original text app, it keeps asking me to change the default settings every single time. That notification gets annoying. I've emailed for help too, hoping to find a solution.

  • Tip Top
    Tip Top

    I really enjoy this app. It works smoothly and keeps my texts and private contacts hidden. Definitely a favorite of mine!

  • Doug MacKay
    Doug MacKay

    The app was running fine for a while. Then yesterday, after an Android update, it started crashing right when I typed in my password. Now I can’t get to my messages at all. I also can't switch the numbers back to another messaging app. It's super frustrating.

  • Malik Ali Mehran
    Malik Ali Mehran

    Calls go straight to the regular call log, ringing and all. I emailed the support team about this issue. They suggested checking a box to block incoming calls. I told them that the box has always been checked. This app constantly has issues that defeat its purpose. I won't remove this review until they fix it.

Security Status
Clean

It’s extremely likely that this software program is clean.

What does this mean?

We have scanned the file and URLs associated with this software program in more than 50 of the world's leading antivirus services; no possible threat has been detected.

  • Name: Calculator Pro+
  • Package Name: com.privatesmsbox.calc
  • Signature: 3947fd356cba935ff035501d4184e288