Cinder is launching soon
Cinder is nearly ready. It isn’t available to download yet, and phone-to-phone end-to-end encrypted messaging is still being built. Check back here for the launch.
Say it. Seal it. Burn it.
Cinder is being built as a secure messaging service where nothing can be captured by an outside source. The first release, for Android and Fire tablets, is a single-device version: no accounts, no internet permission, everything sealed on your phone. Two-phone secure messaging is the goal and is coming soon. Your messages never touch our servers, because there aren't any.
Coming soon How it keeps you private Compare with other apps
Coming soon 
Coming soon
What is Cinder? (about a minute)
Features
Locked by your password
Everything Cinder stores is encrypted with AES-256-GCM using a key made from your password.
Sealed notes
Notes arrive sealed and open only when you choose.
Translate, keep the original
Translations show on top and the original stays underneath.
Shred
Delete this phone's copy of a message. Shred on both phones is coming with two-phone messaging.
Snap
In-app camera with filters and a burn timer. Nothing goes to your camera roll, and location tags are removed.
People & groups
Add friends by seal. Later joiners can't read earlier messages.
Games
Chess, Crazy Eights and Go Fish.
Keep vault
A second password and self-shredding protection.
Coming soon
- Real phone-to-phone end-to-end encrypted messaging (today Cinder runs as a single-device demo)