About this site & the developer
ishindenshin.app is the official home of MindMatch, the sync game you can play in your browser (and as an iPhone app). Who makes it, how the guides are written and verified, and how to get in touch.
The developer
Ryota Uematsu — Developer of MindMatch · iOS engineer
MindMatch is designed, built and maintained by Ryota Uematsu, an independent iOS engineer. It passed 2,900 downloads within a month of its late-July 2026 launch and runs with no ads and no purchases. Since October 2026 the whole game also plays in the browser, with rooms where 2–8 people join by link and play on their own phones at the same time. Scoring, the 71 report types and the five-language text are identical in the iPhone app and on the web. This site hosts the game and guides about games for friends, couples and families.
How the guides are written and verified
Our guides use official websites and store listings to check player counts, pricing, supported devices and setup. For browser games we also consult official instructions and help pages. Sources appear at the end of each guide. Articles about psychology identify research sources and limitations, and distinguish game results from scientific assessments. Services do not pay to be listed. Terms can change, so check the linked service before playing. Report errors using the contact below.
Contact
Use the developer website / support links on the App Store page.