解説！ジーニアス受験生！ vs Derivon
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
解説！ジーニアス受験生！
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勉強をしながら、学力を上げて 部活動をしながら、集中力を上げて アルバイトをしながら、お金を稼いで 高校３年生の冬に合格を掴み、春を迎えよう！
Derivon
Master calculus concepts like derivatives and integrals through daily, intuitive practice. Earn rewards, collect planets, and build streaks as you progress through challenges. Designed for quick, effective learning sessions.
- Daily calculus problem practice
- Earn Star Sand rewards
- Collect planets in Gallery
- Build and maintain daily streaks
- Rank-Up Challenges
- Shooting mode for breaks
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Master calculus through daily practice. Solve derivatives and integrals by intuition — no overthinking, just repetition. • Swipe through problems and build your skills • Earn Star Sand with every correct answer • Spin the Gacha to collect planets in your Gallery • Build a daily streak — never break the chain • Take Rank-Up Challenges as you progress • Play Shooting mode for a quick break • Track your streak, level up, and earn rewards Whether you're preparing for AP Calculus, university exams, or just sharpening your math skills, Derivon makes practice feel like a space adventure. 3 minutes a day. That's all it takes. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: 解説！ジーニアス受験生！ at none against Derivon's 5. 解説！ジーニアス受験生！ also leads on ads (none vs shown) and update cadence (every 2 days vs every 5 days). On price 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. Derivon sells 5 in-app purchases, starting at $1.99 per month. 解説！ジーニアス受験生！ asks for nothing beyond the download.
解説！ジーニアス受験生！ ships an update every 2 days, Derivon every 5 days. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.
| Parameter | 解説！ジーニアス受験生！ | Derivon |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 days — better | Every 5 days |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 229 MB | 206 MB |
| Age rating | 4+ | 4+ |
| Developer | HIROMICHI OTAKI | ABT合同会社 |
In-app purchases
解説！ジーニアス受験生！
No in-app purchases
Derivon
- Derivon Super (Monthly)7 Days trial$1.991 Month
- Derivon Super (Yearly)7 Days trial$14.991 Year
- 5 Star Fragments$0.99
- 12 Star Fragments$1.99
- 32 Star Fragments$3.99
