Reflex Trainer

Reflex Trainer measures your true reaction time, then turns it into a sport.

Whether you're a boxer training for the next bag round, a fighter sharpening your reads, or just someone who wants to know how fast they actually are - Reflex Trainer gives you a precise, repeatable measurement and a way to push it lower.

-- TWO TEST MODES --

• Combat Sports - A visual stimulus fires; you throw a punch. The phone's accelerometer detects the impact and times it to the millisecond. Built for athletes, but anyone can use it.

• General Reaction - Tap-based reaction test. Same precision, no movement required. For when you're sitting on the bus.

-- LIVE DUELS --

Challenge friends to head-to-head reaction battles. Best of 3, 5, or 7.
Real-time scoring with a server-synchronised clock - no laggy peer-to-peer, no excuses. Win streaks, rematch flow, and a public lobby if you want quick-match action with strangers.

-- FRIENDS & PROFILE --

Add friends by username or shareable code. See their last reaction time, their personal best, and your full head-to-head record. Get push notifications when a friend beats their PB or finishes a duel against you - rivalry stays alive even when you're not in the app.

-- CROSS-PLATFORM --

Your account, history, and friends list sync across iOS (with Apple Watch
support for wrist-mounted punch detection), Android, and the web app at
reflex-trainer.com. Sign in once on any platform and pick up where you
left off.

-- LEADERBOARDS --

Global rankings for both modes. Filter by reps (1–10) and see where you land. Personal bests are tracked separately so you always know what to beat.

-- BUILT WITH RESPECT FOR YOUR TIME AND DATA --

• No ads. Ever.
• No third-party analytics. We don't sell or share your data.
• You can request full account deletion any time from
reflex-trainer.com/privacy/delete.

-- WHO IT'S FOR --

• Boxers, MMA fighters, kickboxers, BJJ practitioners - anyone whose
sport rewards faster reactions.
• Esports players who want to train the underlying reflex independently
of any specific game.
• Athletes recovering from concussion or injury who want to track
reaction-time recovery.
• Anyone curious how their reflexes compare to friends.

Train. Test. Duel.