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0.2 January 15, 2026- 9.3
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Keep your communications secure.
Unbreakable SMS is an SMS/Email/Facebook/Just-about-anything encryption tool. Agree on a password with your friends and use it to send secret messages securely!
This app will detect incoming encrypted messages and fire a notification. You can decrypt messages either directly from your SMS inbox or from the clipboard.
The current supported cryptographic algorithms are:
Morse Code (very weak)
Rail-Fence (very weak)
Rot-13 (very weeak)
Nihilist (weak)
Playfair (medium)
Bifid (medium)
Trifid (medium)
ADFGVX (medium)
AES (very strong)
One Time Pad (Mathematically Unbreakable)
Update: Unbreakable SMS (PAID) is now free! Funny story, that - I forgot my password and couldn't issue updates to the old version anymore. Instead of making everyone buy it again, I decided to just release a free version with all of the same features as the original, plus a few extras.
Action Adventure
Simulated Business
Role Playing
Sports Competition
Casual Puzzle
Card Strategy
Music Rhythm
Word Puzzle
Flight Shooting
Love Development
Business Office
Communication and Social
Lifestyle and Entertainment
Online Shopping
Utility Tools
Travel Travel
Finance
Education Learning
Information Reading
Sports and Health