# OFFBEAT — Rhythm Trainer

> Ska & jazz rhythm trainer

Canonical page: [https://chrome-stats.com/d/id6792494586](https://chrome-stats.com/d/id6792494586)

## Overview

- **ID:** `id6792494586`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** YUKIO SAITO
- **Category:** Music
- **Version:** 1.3
- **Last updated:** 2026-08-02
- **First published:** 2026-07-21
- **Size:** 3.07 MB
- **Data as of:** 2026-09-23
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/offbeat-rhythm-trainer/id6792494586)
- **Website:** [https://offbeat.jazzsoda.com/index-en.html](https://offbeat.jazzsoda.com/index-en.html)
- **Privacy policy:** [https://offbeat.jazzsoda.com/privacy-en.html](https://offbeat.jazzsoda.com/privacy-en.html)

## Description

OFFBEAT is a rhythm training app built for ska punk and jazz musicians.

■ Train the "gap" a metronome can't teach you
Just tapping along with a metronome doesn't build the feel you need on stage.
OFFBEAT focuses on the genre-specific placement of rhythm — offbeats only,
the third note of the swing triplet, the 2 & 4 backbeat — and visualizes
your timing error in milliseconds.

■ 6 specialized training modes
- Offbeat Master (free) — the 8th-note offbeat that underpins ska cutting
- Swing Pocket (free) — the "third triplet" feel of jazz time
- 2 & 4 Backbeat — the shared backbone of jazz and ska
- Silent Keep — hold your internal groove through bars of silence
- Tempo Sprint — survive accelerating tempos without rushing
- Call & Response — hear a phrase, play it back

■ Output latency calibration
Measures the output delay of your earphones/speaker and folds it into
the judgment, resolving the feeling of being "off" when you're actually
on time. That said, since Bluetooth latency itself fluctuates, please
use wired earphones or a speaker.

■ Built to keep you coming back
- Three 30-day lesson courses (All-round / Ska focus / Jazz focus)
- Day-streak tracking with a weekly one-day protection freeze
- Timing diagnosis after every session: are you rushing or dragging?
- Score, accuracy and average offset recorded every run

[Pricing]
- The app is free to download.
- "Offbeat Master" and "Swing Pocket" are free forever, with no time limit.
- A single purchase unlocks the other four modes (2&4 Backbeat, Silent Keep, Tempo Sprint, Call & Response) and all three 30-day lesson courses (All-round, Ska, Jazz).
- This is a one-time purchase, not a subscription. Once you buy it, the content listed above is yours to keep.
- After reinstalling or switching devices, use "Restore Purchase" in Settings.

■ Privacy
All play data stays on your device. Nothing is transmitted
(see the privacy policy for details).

For you if:
- You play in (or want to join) a ska punk or jazz band
- You can follow a metronome but can't sit in the groove
- You've ever been told you rush on the offbeats

— From the developer

I've played in a ska punk band and spent years touring the jazz cafés of Japan,
yet I never trusted my own sense of rhythm. Metronomes and method books
didn't fix it. "It isn't talent — there has to be a way to train this."
So I built it with the one skill I did have: programming. That's how OFFBEAT began.
Not for people who already have rhythm, but for those who struggle, like I did.
Starting with ska and jazz — and someday, for every player, in every genre.

## Rankings

- #1,468,760 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6792494586)