Don't Drop vs 素因数分解キングダム
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Don't Drop
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This is a tapping game. By tapping the screen, you can make a ball jump forward. Match the timing and jump to the next cube. If you drop the ball, game is over. Do your best to bring the ball to the next block!
素因数分解キングダム
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素因数分解キングダムはゲームを通じて、素因数分解を学ぶことができるアプリです。 単にゲームとして楽しむだけでなく、定期テスト対策や受験勉強の一環としても活用できます。 また、脳トレとしても効果的なので、学生以外にもおすすめです。 "Prime Factorization Kingdom" is an app that allows users to learn prime factorization through gameplay. Not only can it be enjoyed as a game, but it can also be utilized as part of regular test preparation or entrance exam studies. Additionally, it is effective as a brain-training tool, making it highly recommended not just for students but for people of all ages.
Screenshots
Verdict
The clearest difference is iOS requirement: Don't Drop at 10.0 against 素因数分解キングダム's 16.0. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 27, 2026 and October 14, 2026 respectively.
| Parameter | Don't Drop | 素因数分解キングダム |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 56 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Takahiko Nakade | Yuta Matsuda |
In-app purchases
Don't Drop
No in-app purchases
素因数分解キングダム
No in-app purchases
