Buzzer Knockout
Stop the clock – in your head!
Free · In‑App Purchases
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.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
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.
The developer, Stavros Petropoulos, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Stavros Petropoulos
- Size
- 16.8 MB
- Category
- Casual
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later.
- iPhone
- Languages
English and 9 more
- English, Bosnian, Croatian, Dutch, German, Greek, Italian, Polish, Serbian, Turkish
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- 3,000 Sparks $8.99
- 1,200 Sparks $3.99
- 500 Sparks $2.99
- 100 Sparks $0.99
- Premium Pass $8.99
- Copyright
- © Stavros Petropoulos
