# Buzzer Knockout — Stop the clock – in your head! > Stop the clock – in your head! (iPhone/iPad app by Stavros Petropoulos.) - Source: https://appshunter.io/ios/app/buzzer-knockout/id6773007504 (this page in markdown: same URL + `.md`) - Developer: [Stavros Petropoulos](https://appshunter.io/developer/1895016415) - Category: Games, Entertainment, Casual, Strategy - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 17.6 · 16 MB - Languages: American English, Bosnian, Croatian, Dutch, German (Germany), Greek, Italian, Polish, Serbian, Turkish - Released: 2026-05-28 - Data updated: 2026-08-28 - User reviews in markdown: https://appshunter.io/ios/app/buzzer-knockout/id6773007504/reviews.md ## What is Buzzer Knockout? STOP! But please right at 6.7 seconds. Buzzer Knockout is the party game that puts your sense of time to the test. One target time, one buzzer, no visible timer – and only the closest one wins. Sounds easy? Try it. HOW IT WORKS Every round comes with a target time – sometimes 3.2 seconds, sometimes 14.8. You hit the buzzer, count in your head, and hit it again when you think the time is up. Whoever's closest wins. Whoever's completely off still has a laugh. GAME MODES - Solo: train your timing and chase your best deviation - Classic: 2–8 players on one device, pass and play - Knockout: the worst guess each round is out – nerves of steel required - Time Guess: a counter starts, vanishes – and everyone guesses to the hundredth of a second how long it ran PLAY ONLINE - Quick match against players worldwide - Private rooms with a 6-digit code for your crew - Synchronized rounds – everyone buzzes in the same match - Game Center leaderboard and achievements MORE THAN A BUZZER - Earn Sparks every round and spend them in the shop - Buzzer Pass: 30 tiers of seasonal rewards - Daily quests for bonus Sparks - Cosmetics: buzzer skins, themes, name effects, frames, win animations, confetti and sound packs - Dozens of achievements – from your first game to the perfect round PERFECT FOR - Apartment nights that are slowly dying - Waiting at the airport - Family gatherings without a small-talk emergency plan - Anyone who claims they have "a great sense of time" SOUNDS SIMPLE – IT ISN'T Try counting 9.3 seconds in your head while your best friend stands next to you mumbling "one, two, three..." to sabotage you. That's exactly the fun. NO ACCOUNT NEEDED No registration, no Wi-Fi for local play – open the app, add players, go. Online play uses Game Center, so there's no extra sign-up. Download Buzzer Knockout now for free and find out if you're really as good as you think. ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Premium Pass | $8.99 | one-time | | 100 Sparks | $0.99 | one-time | | 500 Sparks | $2.99 | one-time | | 1,200 Sparks | $3.99 | one-time | | 3,000 Sparks | $8.99 | one-time | ## Version history (last 5 releases) ### 1.4 — 2026-08-10 New mode: Time Guess! Everyone watches a counter start at 0.00 — and turn invisible after one second. It keeps running, and when it stops, each player guesses to the hundredth of a second how long it ran. Closest guess wins the round. Built for local parties: one device, everyone watches, then you take turns guessing. Plus small improvements and bug fixes. ### 1.3 — 2026-06-22 The Spark Shop is here! Top up on Sparks and unlock even more buzzers, themes and cosmetics in the Shop. Plus bug fixes and performance improvements for smoother parties. ### 1.2 — 2026-06-14 • Brand-new app icon • In-app purchases are now available — grab Sparks packs and unlock the Premium Buzzer Pass • Minor improvements and bug fixes Buzz on! ### 1.1 — 2026-06-12 Online multiplayer is here! • Quick match against players around the world • Private rooms: share a 6-digit code and play with friends • Synchronized rounds on a brand-new, more reliable game server • A fresh, warmer look across the whole app • Preview cosmetics in the shop before you buy • Lots of polish and bug fixes Thanks for playing – buzz on! ### 1.0 — 2026-05-28 No release notes. ## Apps similar to Buzzer Knockout | App | Rating | Price | Category | | --- | --- | --- | --- | | [Tiiime : The Game](https://appshunter.io/ios/app/tiiime-the-game/id6758630789) | — | Free | Games | | [Race on Highway](https://appshunter.io/ios/app/race-on-highway/id1233772696) | 4.5 (2) | Free | Games | | [Bull Or Bear: Trading Game](https://appshunter.io/ios/app/bull-or-bear-trading-game/id6757661618) | 1.0 (1) | Free | Games | | [Band Clicker Rock The Stadium](https://appshunter.io/ios/app/band-clicker-rock-the-stadium/id1023223906) | 4.4 (23) | Free | Games | | [Knobeln](https://appshunter.io/ios/app/knobeln/id1535400785) | — | Free | Games | | [Stop the Timer: Stopwatch Game](https://appshunter.io/ios/app/stop-the-timer-stopwatch-game/id6786036564) | 5.0 (2) | Free | Games | ## More apps by Stavros Petropoulos - [STARIS Digital Menu](https://appshunter.io/ios/app/staris-digital-menu/id6762797023) - [Reactor Party](https://appshunter.io/ios/app/reactor-party/id6775875142) All apps by Stavros Petropoulos: https://appshunter.io/developer/1895016415 ## Related topics [buzzer head](https://appshunter.io/ios/topics/buzzer-head) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*