Do you want to hide your private conversations? Worried about spam SMS? Worried on your messages checked by others, then Calculator Pro+ is for you. It saves SMS/MMS of secret contacts behind calculator app. To keep secret messages of particular number, add it as Private Contact. After that when any new message received from that contact, it directly move inside application. Its easy to use and keeps user conversation secret. Your SMS conversation is 100% SECRET and secure. It also provides free texting between users. Just Sign-In with your number. Send unlimited text, audio, photo and location details to another user. Full of emoj characters (300 emoj support), useful to represent emotions. Features: - Password screen of calculator to open application - Hide SMS and MMS - Filter/block spam message - Custom notification text & icon for private message - Free text & multimedia messaging between users - Auto backup - Image/Audio/Location sharing - Open from phone default dialer - Hide app icon, cannot be seen or opened by other people - Timeout: set a timer to close application - Messages move back and forth from default messaging app Note: Android OS version 4.4 & above need to set AdvanceSMS as default SMS app for native messaging support. Excited to receive feedbacks or queries at: info@privatesmsbox.com