Comparison

Calculus Gacha! vs Derivon

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

Head to head
About

Calculus Gacha!

Features
Read full description

● Fun, Gacha-Style Learning Tackle randomly selected questions and instantly check explanations and formulas as you go. ●AI Tutor Stuck on a problem? Ask the built-in AI tutor for a hint, a solving strategy, just the first step, or an explanation using a simpler similar problem — all tailored to the question you're working on. ● Learn by Topic Integration, limits, factorization, indeterminate equations, recurrence relations, differential equations, and more. Each topic is organized into categories so you can focus on exactly what you want to study. ● Helpful Support Features Hints, scratch paper, a timer, and other tools make learning smoother and more efficient. ● Automatic Study Tracking All solved questions are saved on your device, allowing you to review your progress and understanding anytime. ● Smart Question Selection Based on your learning history, the app prioritizes topics you struggle with, helping you learn more efficiently. --------------------------- Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.notion.so/calculus-gacha-joy-math-27ae4f0afd3b80cb9754ce138cbc80ca?source=copy_link

About

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.

Highlights
  • Daily calculus problem practice
  • Earn Star Sand rewards
  • Collect planets in Gallery
  • Build and maintain daily streaks
  • Rank-Up Challenges
  • Shooting mode for breaks
Read full description

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

Calculus Gacha!4 screens
Derivon4 screens

Verdict

The call

The clearest difference is ads: Calculus Gacha! at none against Derivon's shown. Calculus Gacha! also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.0). On price, update cadence 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. Calculus Gacha! sells 3 one-off in-app purchases and Derivon sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on August 16, 2026 and September 19, 2026 respectively.

Scorecard3 real differences · 7 level
Calculus Gacha! versus Derivon: the parameters behind the verdict, then further details
ParameterCalculus Gacha!Derivon
PriceFreeFree
Rating3.0 (1 ratings) — better
Positive reviews0.0% of reviews
Number of ratings1 — better
Update frequencyEvery 2 daysEvery 2 days
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better26.0
Further details — not scored
Size81 MB130 MB
Age rating4+4+
DeveloperShunsuke NakamuraRYOMA MIZUTANI

In-app purchases

3 purchases

Calculus Gacha!

One-time3
  • 不定方程式ガチャ利用オプション$0.99
  • AI Tutor Plus(500)$2.99
  • 履歴管理機能オプション$2.99
3 purchases

Derivon

One-time3
  • 5 Star Fragments$0.99
  • 12 Star Fragments$1.99
  • 32 Star Fragments$3.99

Questions

Is Calculus Gacha! free?
Calculus Gacha! is free to download, with in-app purchases available.
Is Derivon free?
Derivon is free to download, with in-app purchases available.
Do Calculus Gacha! or Derivon have ads?
Derivon shows ads; Calculus Gacha! does not.
Which is updated more often, Calculus Gacha! or Derivon?
Calculus Gacha! ships an update every 2 days, and Derivon every 2 days. Most recently, Calculus Gacha! was updated on August 16, 2026 and Derivon on September 19, 2026.

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