Effective August 16, 2026
MasterTyping privacy notice
MasterTyping is local-first. Practice data stays on this device unless you export it or choose account synchronization.
What is stored
Your profile goal, preferences, session summaries, mastery evidence, recommendations, compatible legacy history, and game progression are stored locally so the app can resume and personalize practice.
Typed content
Raw typed passages and custom practice text are not sent anywhere. Semantic exports exclude raw custom passages by default.
Optional telemetry
Nonessential telemetry is off by default. If enabled, sanitized events are retained locally only in this release. Raw text, emails, authentication tokens, clipboard content, and per-keystroke content are prohibited.
Your controls
You can export, preview and import, clear data from this device, or delete synchronized account progress from Settings & privacy at any time.
Optional accounts
You can use MasterTyping as a guest. If you sign in, the app synchronizes only the same summary data included in a backup: profile, preferences, session summaries, mastery, recommendations, game progression, and compatible legacy history. Raw typed text, custom passages, per-keystroke content, telemetry, clipboard data, and authentication tokens are not synchronized.
Account security
Passwordless sign-in is provided by Supabase Auth. Account rows are restricted to the signed-in user with database Row Level Security. Signing out can keep a local copy for continued guest use or remove account data from this device.
