Comparison

ガチ素因数分解 vs Root Drop

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

Head to head
About

ガチ素因数分解

Features
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「素因数分解」がゲームになった! 素因数分解の限界に挑戦してみよう! 操作は簡単! 表示される数を素因数分解して式を入力するだけ! 正解ならその数字分のポイントが加算され、不正解だと逆に減算される。 制限時間は90秒! 君はどこまで素因数分解できるかな?

About

Root Drop

Features
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A fresh take on falling-block puzzles: every block that drops is a √ (square root). Drop a √ onto another √ to multiply them. When an integer can be extracted, the result splits into an integer below and the remaining √ above. Matching integers connected horizontally or vertically merge into a power block. Two 3s make 3²; add another 3 to make 3³… Keep the chain going to grow bigger numbers. FEATURES • Simple rules built around √, with deep number strategy • Your score is revealed at game over, with a breakdown of how many points each number earned • Share your results with an image of the board • A Collection of all the powers you’ve made • Choose your difficulty (Easy / Normal / Hard) and controls in Settings • Game Center leaderboards for each difficulty, plus achievements • Light and dark themes • Available in Japanese, English, Chinese (Simplified and Traditional), Korean, Spanish, French, and German Discover the satisfaction of watching your numbers grow.

Screenshots

ガチ素因数分解3 screens
Root Drop4 screens

Verdict

The call

The clearest difference is iOS requirement: ガチ素因数分解 at 15.0 against Root Drop's 17.0. 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. ガチ素因数分解 sells 5 one-off in-app purchases and Root Drop sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ガチ素因数分解 ships an update every 3 weeks, Root Drop fortnightly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 8 level
ガチ素因数分解 versus Root Drop: the parameters behind the verdict, then further details
Parameterガチ素因数分解Root Drop
PriceFreeFree
Rating4.6 (23 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings23 — better—
Update frequencyEvery 3 weeksFortnightly — better
AdsYesYes
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size100 MB9 MB
Age rating12+4+
DeveloperChikai ItoNaoki Chiba

In-app purchases

5 purchases

ガチ素因数分解

One-time5
  • コイン150枚$0.99
  • コイン400枚$1.99
  • コイン1000枚$2.99
Show 2 more
  • 広告削除$4.99
  • コイン2700枚$6.99
1 purchases

Root Drop

One-time1
  • Remove Ads$1.99

Questions

Is ガチ素因数分解 free?
ガチ素因数分解 is free to download, with in-app purchases available.
Is Root Drop free?
Root Drop is free to download, with in-app purchases available.
Do ガチ素因数分解 or Root Drop have ads?
Both ガチ素因数分解 and Root Drop show ads.
Which is updated more often, ガチ素因数分解 or Root Drop?
ガチ素因数分解 ships an update every 3 weeks, and Root Drop fortnightly. Most recently, ガチ素因数分解 was updated on November 3, 2026 and Root Drop on October 31, 2026.

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