FateChanger vs StudyRank
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FateChanger
This app educates children about environmental issues like plastic pollution and climate change. It then empowers them to learn about and influence environmental policy.
- Learn about plastic ocean pollution
- Understand climate change
- Explore sustainability
- Influence environmental policy
- Empower youth activism
Read full descriptionHide full description
FateChanger is a learning, teaching and activism app that helps kids first understand plastic ocean pollution, climate change and sustainability, and then empowers them influence environmental policy. Time to take back the future.
StudyRank
This app gamifies study time by converting your focused effort into virtual currency. Track your progress, share your achievements on social media, and review your past study sessions.
- Study timer with virtual currency conversion
- SNS sharing of study time
- Progress tracking and history
- Gamified learning experience
Read full descriptionHide full description
◆タイマー機能 勉強した時間をお金に換算することができます。 ◆SNSシェア機能 勉強に費やした時間をSNSに投稿することができます。 ◆記録機能 過去の記録を見ることができます。 お問い合わせ (追加して欲しい機能などあれば) https://twitter.com/benkyoinvest
Screenshots
Verdict
The clearest difference is update cadence: StudyRank at every 2 months against FateChanger's every 44 months. StudyRank also leads on review sentiment (62% vs 50%). FateChanger's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
FateChanger ships an update every 44 months, StudyRank every 2 months. The most recent releases landed on June 1, 2026 and August 21, 2026 respectively.
| Parameter | FateChanger | StudyRank |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 50.0% of reviews | 61.5% of reviews — better |
| Number of ratings | 2 — better | — |
| Update frequency | Every 44 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 44 MB | 25 MB |
| Age rating | 9+ | 4+ |
| Developer | Kids Save Ocean | Yusuke Uemura |
Customer experience
FateChanger
StudyRank
In-app purchases
FateChanger
No in-app purchases
StudyRank
No in-app purchases
