Comparison

Reaction Time vs Door

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

Head to head
About

Reaction Time

Features
Read full description

Are your reactions fast enough to tap 00 before it disappears? ZeroZero Reaction is a fast-paced reaction game by Ibbleobble, designed to test your focus, timing, and speed! Perfect for kids and adults alike, ZeroZero Reaction is simple to play but tricky to master. Watch the numbers loop from 00 to 39 at lightning speed… and tap 00 at just the right moment to score! After five tries, your best reaction time will be sent to Game Center so you can challenge your friends and climb the leaderboard! Game Modes: Classic Mode: Tap 00 as fast as you can. Cheese Mode (In-App Purchase): Tap the cheese instead! – Unlocks ad-free gameplay and even more fun! Features: Super simple one-tap gameplay Fun, educational, and addictive Game Center support Compatible with iOS, iPadOS, macOS & tvOS Great for improving focus and motor skills In-app purchase removes ads and unlocks Cheese Mode Whether you're a quick-tapping kid or a competitive grown-up, ZeroZero Reaction will keep you coming back for “just one more go!” Love Ibbleobble? If you enjoy ZeroZero Reaction, be sure to check out our other educational and fun apps by searching Ibbleobble on the App Store! www.ibbleobble.com www.facebook.com/iblobl www.instagram.com/iblobl www.twitter.com/_iblobl If you enjoy ZeroZero Reaction – Ibbleobble or any of our other games, we’d love a rating or review!

About

Door

Test your memory with a simple yet challenging game. Each round, you must choose a new door from a selection, avoiding any you've opened before. With multiple difficulty levels and leaderboards, see how long you can last.

Highlights
  • New door selection mechanic
  • 5 difficulty levels
  • Optional timed mode
  • 8 achievements
  • Online leaderboards
  • Keyboard support
  • Game Center integration
Features
Read full description

Door is a memory game with one simple rule: always pick the new door. Each round shows two doors. One is a door you've already opened, and one is new. Remember every door you've seen, choose carefully, and see how far your memory can take you. Pick a repeated door and it's game over. Features • 5 difficulty levels • Optional timed mode • 8 achievements • Online leaderboards • Keyboard support • Game Center integration Quick rounds make it easy to play solo or pass around with friends. Available on iPhone, iPad, macOS, and tvOS. 43 in-game languages. Support available in English only.

Screenshots

Reaction Time4 screens
Door3 screens

Verdict

The call

The clearest difference is update cadence: Door at weekly against Reaction Time's every 2 months. On price, ads, in-app purchases and device support 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. Reaction Time sells 1 one-off in-app purchase and Door sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Reaction Time ships an update every 2 months, Door weekly. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

Scorecard1 real difference · 9 level
Reaction Time versus Door: the parameters behind the verdict, then further details
ParameterReaction TimeDoor
PriceFreeFree
Rating—4.7 (6 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—6 — better
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free
DevicesiPhone, iPad, iPod, Mac, Apple TViPhone, iPad, iPod, Mac, Apple TV
Requires iOS15.615.0 — better
Further details — not scored
Size10 MB86 MB
Age rating4+4+
DeveloperKidDotCoAndrew Moloney

In-app purchases

1 purchases

Reaction Time

One-time1
  • Can You Find The Cheese?$1.99
1 purchases

Door

One-time1
  • Ad Free$0.95

Questions

Is Reaction Time free?
Reaction Time is free to download, with in-app purchases available.
Is Door free?
Door is free to download, with in-app purchases available.
Do Reaction Time or Door have ads?
Neither Reaction Time nor Door shows ads.
Which is updated more often, Reaction Time or Door?
Reaction Time ships an update every 2 months, and Door weekly. Most recently, Reaction Time was updated on October 6, 2026 and Door on October 14, 2026.

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