Comparison

JSME計算力学技術者振動2級単語帳 vs Derivon

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

Head to head
About

JSME計算力学技術者振動2級単語帳

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JSMEの計算力学技術者試験 振動2級の単語帳アプリです。ユーザー登録不要で利用できます。 用語は随時追加予定です。

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
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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

JSME計算力学技術者振動2級単語帳4 screens
Derivon4 screens

Verdict

The call

The clearest difference is price: Derivon at Free against JSME計算力学技術者振動2級単語帳's $2.99. JSME計算力学技術者振動2級単語帳's advantage is in-app purchases (none vs 3) and iOS requirement (13.4 vs 26.0).

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

Derivon is free to download; JSME計算力学技術者振動2級単語帳 costs $2.99 up front. Derivon sells 3 one-off in-app purchases. JSME計算力学技術者振動2級単語帳 asks for nothing beyond the download.

Scorecard3 real differences · 7 level
JSME計算力学技術者振動2級単語帳 versus Derivon: the parameters behind the verdict, then further details
ParameterJSME計算力学技術者振動2級単語帳Derivon
Price$2.99Free — better
Rating—3.0 (1 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—1 — better
Update frequency—Every 2 days
Ads—Yes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
Devices—iPhone — better
Requires iOS13.4 — better26.0
Further details — not scored
Size19 MB130 MB
Age rating4+4+
DeveloperDaisuke MatsubaraRYOMA MIZUTANI

In-app purchases

None

JSME計算力学技術者振動2級単語帳

No in-app purchases

3 purchases

Derivon

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

Questions

Is JSME計算力学技術者振動2級単語帳 free?
JSME計算力学技術者振動2級単語帳 costs $2.99, with no in-app purchases.
Is Derivon free?
Derivon is free to download, with in-app purchases available.

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