Derivon vs ひたすら積分
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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/
ひたすら積分
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Practice Integration is a focused learning app designed specifically for mastering integrals. If you struggle with integration or want to build speed and confidence through repetition, this app provides a simple, distraction-free experience focused entirely on practice. The app includes both a 10-Question Time Attack Mode and an Endless Mode, allowing you to practice quickly during short breaks or spend more time improving your skills. With Easy and Hard difficulty levels, it is suitable for learners who are just starting with integration as well as those who want to improve their calculation speed and accuracy. Features • Practice integration exclusively • 10-Question Time Attack Mode • Endless Practice Mode • Easy / Hard difficulty settings • Simple and intuitive interface • Designed for quick practice sessions Move from understanding integration to solving problems with confidence. Perfect for anyone who wants to master integrals through consistent repetition and practice.
Screenshots
Verdict
The clearest difference is in-app purchases: ひたすら積分 at none against Derivon's 5. ひたすら積分 also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.0). On price and ads 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. ひたすら積分 asks for nothing beyond the download.
| Parameter | Derivon | ひたすら積分 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 days | — |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 251 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | ABT合同会社 | nihei keita |
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
ひたすら積分
No in-app purchases








