A mystery, played over text.
itwo cases arrive on your phone as real SMS. No app to install — the cast texts you in character, straight to your Messages inbox.
Choose your case
16 cases at launch across noir, gothic, cozy, sci-fi and more. New cases monthly.
Read and reply
The cast texts you. Reply with multiple-choice answers right from your Messages app.
Name the culprit
When you're ready, accuse. We grade the answer and walk you through every clue you missed.
Real SMS, real Messages app
No app, no login. The cast texts your phone — you reply like you would to any friend.
Common questions
Do I need to install an app?
No app, no login screen. itwo cases are delivered to your phone over real SMS — open your Messages app and play.
How long is a case?
Starters run 15–25 messages in one sitting. Premium long-form cases can be 50–70 messages across multiple sittings.
Can I replay a case?
Yes. Different questions reveal different threads — you'll find branches and details you missed.
Are messages safe to share?
Each thread is yours. Share the case, not the spoilers.