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SMSecure vs Connect You: catalog facts
SMSecure	Connect You
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the GPL-3.0 licence.
Android	Android
Encrypted conversations over ordinary SMS Continues the Silence and TextSecure line on current Android	Contacts and SMS in a single app Uses the system contacts API so data stays in sync
Encryption only works when the contact also uses a compatible app Android only	SMS on Android 16 and later needs restricted permissions enabled manually Android only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.