# Rytmica — BPM Calculator & Anmitsu Check

> BPM Calculator & Anmitsu Check (iPhone/iPad app by ryuya watanabe.)

- Source: https://appshunter.io/ios/app/rytmica/id6757244924 (this page in markdown: same URL + `.md`)
- Developer: [ryuya watanabe](https://appshunter.io/developer/1863586499)
- Category: Music
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 30 MB
- Languages: American English, Japanese
- Released: 2026-01-06
- Data updated: 2026-08-13
- User reviews in markdown: https://appshunter.io/ios/app/rytmica/id6757244924/reviews.md

## What is Rytmica?

【Rytmica】
A handy tool for rhythm gamers.
Calculate BPM & note durations and check Anmitsu timing.
■ Features
● Note Calculator
Display duration of each note in milliseconds.
● Anmitsu Checker
Check if simultaneous hits will still get PERFECT.
Includes multiple game presets.
● Note Converter
Convert notes between different BPMs.
● Note Count Calculator
Calculate how many notes occur within a specified time.
● Metronome
Built-in precision metronome for practice.

no ads, open source


## Version history (last 4 releases)

### 2.2.29 — 2026-01-20

Fixed dotted note calculation formula
Improved metronome animation

### 2.2.28 — 2026-01-15

Add Japanese to store information

### 2.2 — 2026-01-14

Fix iPad Layout

### 2.1 — 2026-01-06

No release notes.

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## More apps by ryuya watanabe

- [MochiLog](https://appshunter.io/ios/app/mochilog/id6756904240)
- [MioWidget](https://appshunter.io/ios/app/miowidget/id6758489056)

All apps by ryuya watanabe: https://appshunter.io/developer/1863586499

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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 2026-08-13.*