# Study Coin (4174d1)

> Study Coin (4174d1) (iPhone/iPad app by Shotaro Hamada.)

- Source: https://appshunter.io/ios/app/study-coin-4174d1/id6790985475 (this page in markdown: same URL + `.md`)
- Developer: [Shotaro Hamada](https://appshunter.io/developer/6790985477)
- Category: Education, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 102 MB
- Languages: Japanese
- Released: 2026-07-23
- Data updated: 2026-09-03
- User reviews in markdown: https://appshunter.io/ios/app/study-coin-4174d1/id6790985475/reviews.md

## What is Study Coin (4174d1)?

Study Coin turns every minute of study into a coin. Track focused study sessions with a simple timer, set daily goals, earn achievement bonuses, build streaks, and use rest tickets when you need a break.

Spend locally earned coins to explore 30 adventure worlds, each with its own scenery, music, achievements, and satisfying sound effects.

An optional Friends Timeline lets users exchange 8-character friend codes and share selected study summaries only with approved friends. Sharing controls, fixed reactions, mute, block, report, and online-account deletion are included. The social feature uses an automatically created anonymous account, so no username or password is required.

Core study records remain on the device. There are no ads or tracking.


## Version history (last 4 releases)

### 1.3.0 — 2026-09-02

Version 1.3 expands daily goals to up to 10 tasks with proportional penalties, adds subject-based study records and friend week/month/year summaries, enables exam-result entry from Home, adds friend-only posts, comments, reactions and QR friend adding, shows an active timer on the Lock Screen and Dynamic Island, and improves onboarding, rules guidance, sharing reliability and keyboard handling.

### 1.2.0 — 2026-08-24

• Added friends-only text posts and comments up to 200 characters
• Added profiles for you and your friends
• Added optional subject selection before starting the study timer
• Added a three-step first-use guide and made the Rules Encyclopedia accessible from Home
• Fixed the level display so it advances only after coins are spent to unlock the road
• Strengthened safety with post/comment deletion, reporting, blocking, and server-side text checks

### 1.1.0 — 2026-08-12

• Added 30 unique worlds, each with its own scenery and music.
• Added an optional friends-only timeline with user-controlled sharing.
• Reorganized the Plan screen into three clearer levels and fixed saving the “None” option.
• Improved music looping, world transitions, controls, and stability.

### 1.0.0 — 2026-07-24

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*