Does Reflex work on iPhone and Android?

Both, in the browser each ships with — Safari or Chrome. No app store, no install, same game and leaderboards as desktop.

Is touch slower than a mouse?

Different, not slower — touch skips the hand-to-cursor translation entirely. Compare progress within one device; cross-device times differ by input latency, not skill.

How much battery and data does it use?

Trivial amounts — a session costs less data than a minute of video and less battery than your camera app spends thinking about opening.

⚡ Reflex on your phone

Reflex on a phone isn't a compromise — it's arguably the native experience. Touch is immediate (no mouse between you and the block), sessions fit wherever you're standing, and the browser version means your storage-starved phone gains a game without losing 300 MB.

Built touch-first

Every interaction is a tap — no virtual joysticks, no tiny buttons pretending your thumb is a cursor. Reflex's test of pure reaction time translates perfectly to a fingertip, and duels are platform-fair: matched opponents face the same rounds under the same conditions, thumb vs thumb. iPhone Safari, Android Chrome, and everything modern in between just work.

Pocket-sized sessions

A full duel runs 30–40 seconds — genuinely shorter than a bus stop, elevator wait or kettle boil. There's no app to background-refresh, no notifications begging you back, no login to expire. Add it to your home screen from the browser menu if you want an icon; skip it if you don't. For the best waiting-room rotations, see quick games for waiting rooms.

How to play Reflex

A block appears red. Both players wait — fingers hovering, nerves fraying.
After a randomised delay it snaps to green. Tap immediately.
Your time is measured in milliseconds from the colour change to your tap.
Tap while it's still red and you forfeit the round — anticipation is the cardinal sin.