Comparison

Calculus Gacha! vs Firstra

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

Firstra

Organize your learning with custom tasks and goals. Build consistent study habits using a dedicated timer and daily log. Personalize your experience with themes and colors.

Highlights
  • Create custom study books and tasks
  • Set daily learning goals
  • Track study progress over time
  • Log daily study time and visualize streaks
  • Dedicated study timer
  • Personalize with themes and colors
Features
Read full description

Firstra is your all-in-one study companion designed to help you stay organized, motivated, and on track. Plan Your Study Create books and custom tasks to organize your learning. Set daily goals and track your progress over time. Build Habits Log daily study time and visualize your streaks. Stay consistent with a dedicated timer and daily log system. Personalize Your Experience Choose from multiple theme packs, customize task colors, and make Firstra truly yours. Go Pro Unlock advanced themes, cover images, custom timer sounds, and more with a monthly, yearly, or lifetime subscription. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Calculus Gacha!4 screens
Firstra4 screens

Verdict

The call

The clearest difference is iOS requirement: Calculus Gacha! at 13.0 against Firstra's 16.4. 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. Calculus Gacha! sells 3 one-off in-app purchases and Firstra sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Calculus Gacha! ships an update every 2 days, Firstra every 3 days. Both last shipped on September 25, 2026.

Scorecard1 real difference · 9 level
Calculus Gacha! versus Firstra: the parameters behind the verdict, then further details
ParameterCalculus Gacha!Firstra
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 days — betterEvery 3 days
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.4
Further details — not scored
Size81 MB53 MB
Age rating4+4+
DeveloperShunsuke NakamuraHAIGANG MENG

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

Firstra

Subscriptions2
  • Pro Plan (Monthly)7 Days trial$1.991 Month
  • Pro Plan (Yearly)7 Days trial$11.991 Year
One-time1
  • Pro Plan (Lifetime)$39.99

Questions

Is Calculus Gacha! free?
Calculus Gacha! is free to download, with in-app purchases available.
Is Firstra free?
Firstra is free to download, with in-app purchases available.
Do Calculus Gacha! or Firstra have ads?
Neither Calculus Gacha! nor Firstra shows ads.
Which is updated more often, Calculus Gacha! or Firstra?
Calculus Gacha! ships an update every 2 days, and Firstra every 3 days. Most recently, Calculus Gacha! was updated on September 25, 2026 and Firstra on September 25, 2026.

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