A slam buzzer with real haptics, a soundboard that hits, round timers, team scores, a spin wheel and your own recorded sounds — all in one tap.
Built for trivia nights, parties, classrooms and streams — no accounts, no setup, no waiting.
A big lime slam pad with a bespoke haptic pattern. The core buzzer never runs out — no daily caps, no press limits.
Air horn, wrong buzzer, correct ding, drum roll, applause, gongs, sirens and more — sorted into Game show, Classroom and My sounds.
Presets from 30 seconds to five minutes, a round counter, and a time's-up sound that lands.
Colour-coded teams, one-tap scoring, round notes and a winner crowning at the end.
Pick who's next with a weighted spin, or settle a split room with a two-tap Yes / No vote.
Capture up to ten seconds — your voice, your class bell, your inside joke — name it, and slam it like any other sound.
One tap on the phone. The whole show on an iPad. A buzzer on your wrist.
Host from the big screen: the pad, a quick-sound rail, the live round timer and the leading team, all on one surface.
A Home Screen widget that buzzes without opening the app, Lock Screen buzzer and timer, and an Apple Watch app that follows whatever sound the phone is set to.
The buzzer, timer, scoreboard, spin wheel, verdict screen and six sounds are free forever, with no cap on how often you buzz. Klaxo Pro adds the other 36 sounds, Crowd mode and unlimited recordings.
Both plans start with a 3-day free trial. Subscriptions renew automatically until cancelled; cancel anytime in your Apple ID settings. See Terms and Privacy.
Klaxo has no accounts and no sign-in. Your teams, scores and recordings stay on your iPhone, and the usage analytics are anonymous with an off switch. Live Buzz-In rooms are anonymous too, and deleted when the host ends them. Read the privacy policy — it's short.
