Memory Space vs Quick Signal Game
Price, ratings, monetisation and update history for both games, side by side ā with what reviewers say about each.
Memory Space
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Three lights flash in order. Repeat them by tapping the traffic light itself. Clear a round and one more light joins the sequence ā the order you already learned stays the same, so every level asks you to hold a little more. Simple to pick up, hard to put down. See how far you and your friends can get. ā¢ Tap the lights directly ā the same traffic light shows the sequence and takes your answer ā¢ Haptic feedback on every tap, with a distinct buzz when you get it wrong, so you can feel your mistakes ā¢ Game Center leaderboard ā¢ Available in English, Japanese and Traditional Chinese
Quick Signal Game
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Green is GO, Red is STOP! A hyper-casual quick tap game that pushes the limits of your reflexes. The rule is ultra-simple: tap "GO" when the signal is Green, and "STOP" when it's Red. The time limit shortens with every correct tap, accelerating the speed. Put your concentration and judgment to the ultimate test. Aim to beat your highest score with the in-game high score ranking feature.
Screenshots
Verdict
The clearest difference is update cadence: Quick Signal Game at daily against Memory Space's every 95 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Memory Space ships an update every 95 months, Quick Signal Game daily. The most recent releases landed on October 7, 2026 and September 27, 2026 respectively.
| Parameter | Memory Space | Quick Signal Game |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 95 months | Daily ā better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad ā better |
| Requires iOS | 16.0 ā better | 16.6 |
| Further details ā not scored | ||
| Size | 4 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | JunJie Yang | Kana Uchida |
In-app purchases
Memory Space
No in-app purchases
Quick Signal Game
No in-app purchases
Questions
Is Memory Space free?
Is Quick Signal Game free?
Do Memory Space or Quick Signal Game have ads?
Which is updated more often, Memory Space or Quick Signal Game?
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