Comparison

Buzzer Knockout vs Guess The Time

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Buzzer Knockout

Features
Read full description

Stop the timer at exactly 10.00 seconds – without looking. Buzzer Knockout turns the stopwatch challenge into a party game. Everyone sees the same target time, say 6.7 seconds. Hit the buzzer to start an invisible timer and hit it again when you think the time is up. Closest to the target wins. No display, just your sense of timing. NEW IN 1.8 • Quick duel: a real opponent right away – play against the recorded run of a player near your level. • Clubs: up to 30 players compete as a team in the weekly league. • Invite friends: every friend who joins through your link brings you both Sparks. • Career: 70 levels in 7 chapters – now with double stops, a metronome, a vanishing clock and a wandering buzzer. • An Advent calendar in December and your year in review to share. BUZZER ROYALE Every Friday at 8 pm (Berlin time) everyone plays at once. Each round the worse half is out, until only one is left – with a countdown on your lock screen. GAME MODES • Solo and Career: train your timing and collect up to 3 stars per level. • TV party: one iPhone or iPad shows the target and the ranking on the TV via AirPlay, every other phone becomes a buzzer – everyone for themselves, in teams or as hot potato. • Classic: 2 to 8 players on one device – take turns, pass the phone, done. • Party mode: every turn brings a house rule or a random twist. • Knockout: whoever is furthest off each round is out. • Time Guess: a counter vanishes after one second. How long did it run? • 10-Second Challenge, Table Mode and Tournament. • Online: Quick Match and private rooms via code or link – no Game Center account needed. DUEL BY LINK Three rounds, fixed target times: play first, send the link – your friends play the same times whenever they like, even without the app via App Clip or in the browser. Rematch in one tap, a notification as soon as someone has played, a result card and iMessage stickers. MADE FOR GAME NIGHT • Local games are free – one device is all you need. • Teams, handicaps like “Quick Glance” and “Distraction”, and dare cards for whoever finishes last. AN EVENT EVERY MONTH Ghost Hour in October, Autumn Wind in November, Snow Storm in December – with double pass XP. And on December 31 the New Year's countdown: tap exactly at midnight, without a clock. DAILY CHALLENGE The same target time for everyone, worldwide, every day. Three attempts, one global leaderboard – and a curve of how everyone else did today. • Weekly league, club ranking, country league and friends ranking • Streaks with bonus Sparks – rescue a missed day with Sparks or a video • Widget, Control Center controls and Siri shortcuts • Apple Watch: stop blind on your wrist COLLECT AND LEVEL UP • Buzzer Pass with monthly themed seasons • Daily Quests and dozens of Achievements • Buzzer skins, themes, frames, name effects, confetti, victory animations and four app icons • Back up your progress with iCloud BUZZER KNOCKOUT PLUS Unlock once: no ads, all dare card packs and an exclusive theme. IN 15 LANGUAGES English, German, Spanish, French, Portuguese, Italian, Dutch, Polish, Bosnian, Croatian, Serbian, Greek, Turkish, Japanese and Korean. Buzzer Knockout is free to play. It contains ads and optional in-app purchases. How good is your timing?

About

Guess The Time

Test your internal rhythm and reaction speed in this 3D time-guessing arcade game. Stop the invisible timer at exactly 5.00 seconds to achieve perfect scores and climb the competitive ranks. It's a precision challenge designed for quick, engaging play sessions.

Highlights
  • Precision 5.00-second timing challenge
  • Invisible countdown gameplay
  • Hyper-precision millisecond tracking
  • Competitive performance ranks
  • Sleek 3D arcade visual style
  • Reaction-time and rhythm training
Features
Read full description

Can you stop the clock at exactly 5.00 seconds? Welcome to Guess the Time: Perfect 5, the ultimate 3D time-guessing challenge. This highly addictive, precision-timing mobile arcade game tests your internal rhythm, sharpens your reaction speed, and challenges your focus. See if you have the nerves of steel required to hit the perfect mark. Designed for competitive party game enthusiasts, high-score chasers, and groups alike, Guess the Time: Perfect 5 brings a high-stakes countdown challenge straight to your smartphone. HOW TO PLAY The rules are deceptively simple, but mastery requires absolute precision: Tap to Start: Launch the digital stopwatch and watch the milliseconds tick up. The Blind Drop: After a brief moment, the running timer completely vanishes from the screen! Count in Your Head: Rely entirely on your internal clock and mental rhythm as the invisible countdown continues. Tap to Stop: Freeze the clock. Did you hit a flat 5.00 seconds, or did you blink under pressure? CORE GAME FEATURES Hyper-Precision Millisecond Tracking: Our advanced digital timer tracks your reaction time down to $0.01$ seconds. Every micro-second counts when you are chasing perfection! The Blind-Timer Loop: The dynamic visual fade forces you to develop real timing skills rather than just memorizing a moving graphic.Competitive Performance Ranks: Get graded on your accuracy after every single round. Rise through the ranks from "Off-Rhythm" and "Good" up to "Elite" and the legendary "Perfect" status. Sleek 3D Visual Style: Enjoy a high-contrast, modern arcade aesthetic with vibrant visual feedback, screen-shake rewards, and tactile button controls designed specifically for mobile devices. TRAIN YOUR BRAIN & REFLEXES More than just a casual time-killer, Guess the Time: Perfect 5 acts as a reaction-time trainer and cognitive rhythm builder. It is the perfect mini-game for quick, low-stress play sessions, whether you are waiting in line, commuting, or hosting a gathering with friends. MASTER THE COUNTDOWN Step up and put your instincts to the test. Download the definitive stopwatch challenge, claim your place on the leaderboard, and see if you can master the clock. Are you too fast, too slow, or absolutely Perfect? Download Guess the Time: Perfect 5 today and prove it!

Screenshots

Buzzer Knockout4 screens
Guess The Time4 screens

Verdict

The call

The clearest difference is iOS requirement: Guess The Time at 15.0 against Buzzer Knockout's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Buzzer Knockout sells 7 one-off in-app purchases and Guess The Time sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Buzzer Knockout ships an update every 8 days, Guess The Time every 5 days. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

Scorecard1 real difference · 8 level
Buzzer Knockout versus Guess The Time: the parameters behind the verdict, then further details
ParameterBuzzer KnockoutGuess The Time
PriceFreeFree
Rating—4.2 (16 ratings) — better
Number of ratings—16 — better
Update frequencyEvery 8 daysEvery 5 days — better
AdsYesYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.615.0 — better
Further details — not scored
Size32 MB241 MB
Age rating4+12+
DeveloperStavros PetropoulosAAM GAMES LTD

In-app purchases

7 purchases

Buzzer Knockout

One-time7
  • 100 Sparks$0.99
  • Starter Pack$1.99
  • 500 Sparks$2.99
Show 4 more
  • Season Pass$3.99
  • 1,200 Sparks$3.99
  • Buzzer Knockout Plus$4.99
  • 3,000 Sparks$8.99
1 purchases

Guess The Time

One-time1
  • Remove Pop up ads$2.99

Questions

Is Buzzer Knockout free?
Buzzer Knockout is free to download, with in-app purchases available.
Is Guess The Time free?
Guess The Time is free to download, with in-app purchases available.
Do Buzzer Knockout or Guess The Time have ads?
Both Buzzer Knockout and Guess The Time show ads.
Which is updated more often, Buzzer Knockout or Guess The Time?
Buzzer Knockout ships an update every 8 days, and Guess The Time every 5 days. Most recently, Buzzer Knockout was updated on October 31, 2026 and Guess The Time on November 10, 2026.

Other comparisons