Comparison

Afterimage Memory vs 1級ボイラー技士問題集lite りすさんシリーズ

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

Head to head
About

Afterimage Memory

Features
Read full description

Afterimage Memory is a simple brain-training game that challenges you to memorize numbers for a moment, then find the one that changed. Look at the numbers on the screen, remember their positions, and tap the number that is different from your memory. The rules are easy to understand, but each stage asks for sharper memory, wider visual attention, and faster reactions. Stage Mode lets you progress through 15 stages with increasing difficulty. As you clear stages, the number of items and grid density increase, creating a steady memory challenge. Score Challenge is built for high-score runs. Keep your streak alive, build combos, and aim for a new personal best. Game Center rankings, score sharing, and satisfying effects make it easy to return for daily brain training. Main features: - Tutorial stage explaining controls, score, difficulty, and time limit - 15-stage Stage Mode with progressive difficulty - Score Challenge for high-score runs - Combo display, best-score effects, and high-score celebration - Haptic feedback for correct and wrong answers - Sound and vibration settings - Game Center leaderboard support - Share your results Afterimage Memory is designed for quick sessions, spare moments, and daily memory training.

About

1級ボイラー技士問題集lite りすさんシリーズ

Features
Read full description

・本番と同様の出題形式で学習できます (図入りの問題は除外しています) ・アプリ内課金はありません ・liteでは広告が表示されます 特徴 ①科目ごとに勉強でき、本番同様に5択で出題。  一問一答形式からなり、回答後、正答率も確認できます。    令和7年前期から令和元年後期までの問題を収録

Screenshots

Afterimage Memory4 screens
1級ボイラー技士問題集lite りすさんシリーズ4 screens

Verdict

The call

The clearest difference is update cadence: Afterimage Memory at monthly against 1級ボイラー技士問題集lite りすさんシリーズ's every 5 months. Afterimage Memory also leads on iOS requirement (15.0 vs 18.6). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Afterimage Memory ships an update monthly, 1級ボイラー技士問題集lite りすさんシリーズ every 5 months. The most recent releases landed on September 23, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 4 level
Afterimage Memory versus 1級ボイラー技士問題集lite りすさんシリーズ: the parameters behind the verdict, then further details
ParameterAfterimage Memory1級ボイラー技士問題集lite りすさんシリーズ
PriceFreeFree
Update frequencyMonthly — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.6
Further details — not scored
Size8 MB6 MB
Age rating4+4+
DeveloperYUICHI NAKATANIKazuki Baba

In-app purchases

None

Afterimage Memory

No in-app purchases

None

1級ボイラー技士問題集lite りすさんシリーズ

No in-app purchases

Questions

Is Afterimage Memory free?
Afterimage Memory is free to download, with no in-app purchases.
Is 1級ボイラー技士問題集lite りすさんシリーズ free?
1級ボイラー技士問題集lite りすさんシリーズ is free to download, with no in-app purchases.
Do Afterimage Memory or 1級ボイラー技士問題集lite りすさんシリーズ have ads?
Neither Afterimage Memory nor 1級ボイラー技士問題集lite りすさんシリーズ shows ads.
Which is updated more often, Afterimage Memory or 1級ボイラー技士問題集lite りすさんシリーズ?
Afterimage Memory ships an update monthly, and 1級ボイラー技士問題集lite りすさんシリーズ every 5 months. Most recently, Afterimage Memory was updated on September 23, 2026 and 1級ボイラー技士問題集lite りすさんシリーズ on October 1, 2026.

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