25分がいい
楽器の練習をするのにちょうどいい長さ
Not enough ratings yet to assess Rin.
Rin - 集中タイマー appears legitimate, with a few gaps. AppsHunter Legitimacy Score for Rin is 65/100.
Based on 65 of 100 points across 7 verification signals from App Store and developer data.