Study Coin (4174d1)
Shotaro Hamada Education iPhoneiPadiPod touch
Study Coin (4174d1) is a free Education app for iPhone and iPad by Shotaro Hamada. Requires iOS 15.1. Updated October 12, 2026.
- Price
- Free
- on the App Store
- Size
- 110 MB
- Age 4+
- Updated
- Oct 12
- 2026 · v1.4.1
Screenshots
About Study Coin (4174d1)
Turn study time into coins and build a steady learning routine. Study Coin combines a timer, daily plans, subject records and an adventure through 30 worlds. Choose a subject and an optional goal task before timing. Review study time, net coins and colored breakdowns by week, month or year. Daily goal tasks award a total of 2,000 coins when all are completed; otherwise the total penalty is prorated, up to 4,000 coins. The Want/To Do balance bonus is settled after the day ends. Explore ten study-item types: a basic boost that grows with your adventure and nine conditional rewards. See each effect before using it, and reserve owned items to activate in sequence. Item bonuses do not stack with morning or scheduled bonus time. Previously owned items and records remain available. A free daily ten-draw shows its odds and final-slot guarantee before drawing. Coins and items have no cash value and cannot be bought for money, transferred or redeemed. No paid extra draws. Connect with mutually approved friends and choose what to share. View study minutes, earned coins and detailed coin breakdowns directly in the timeline. Includes optional photos, 24-hour stories, text posts, replies, likes, reposts, reporting, muting, blocking and account deletion. There is no public feed or private messaging. Optional Screen Time features use Apple's permissions to shield selected apps or websites and exchange earned study coins for access time. Targets and Screen Time records stay on the device. The core study features work without Screen Time permission or an account. The National Study Cup and study-coin score use the same illustrative distribution of one million fictional participants. They are not real national rankings or measures of academic ability. Supports iPhone and iPad, including landscape and Split View. Live Activity displays session time, subject and coins; coin updates may pause when iOS suspends the app. Study history, coins, plans and inventories remain local. Using the same Apple-linked friend account on two devices does not merge study data; shared aggregate stats reflect the last device synced. No advertising, tracking, in-app purchases or subscriptions.
What’s new
Version 1.4.1 · Updated October 12, 2026
- Fixed timeline refresh failures and added detailed coin breakdowns to study posts. - Added friend-only 24-hour stories, likes, reposts and view counts. - Redesigned Home, Records, Shop and Plans to make better use of the screen. - Fixed automatic goal-task selection and item activation during morning and scheduled bonus time. - Aligned the study-coin score and fictional Study Cup ranking. - Streamlined the item shop into a growing basic boost and nine conditional reward types. - Improved subject colors, week-over-week comparisons, bulk item reservations and photo positioning and zoom. - Added session coins to Live Activity. Updates may pause while the app is suspended. - Fixed clipped signs in coin results.
App privacy
The developer, Shotaro Hamada, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Contacts: Contacts
- User Content: Gameplay Content, Other User Content
- Identifiers: User ID
- Usage Data: Product Interaction, Other Usage Data
- Diagnostics: Other Diagnostic Data
Used for: App Functionality
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