# Runifier — Sync music to your cadence

> Sync music to your cadence (iPhone/iPad app by Hidong Kwak.)

- Source: https://appshunter.io/ios/app/runifier/id6770499996 (this page in markdown: same URL + `.md`)
- Developer: [Hidong Kwak](https://appshunter.io/developer/1896748569)
- Category: Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 26.5 · 8 MB
- Languages: American English
- Released: 2026-05-19
- Data updated: 2026-06-02
- User reviews in markdown: https://appshunter.io/ios/app/runifier/id6770499996/reviews.md

## What is Runifier?

Runifier locks your music to your running rhythm. Set a target
cadence, tap Start, and every Apple Music track speeds up or slows
down so its beat lands on each step. A high-precision metronome
clicks in sync, and a voice coach calls your pace out loud as you go.

KEY FEATURES

• Cadence-synced Apple Music — pick a target BPM (120–200) and
  Runifier time-stretches each track to match your stride.

• Per-song BPM memory — enter a song's BPM once and it's saved per
  track, applied automatically the next time it plays.

• Sample-accurate metronome — generated live by AVAudioEngine; never
  drifts, toggle the click on or off mid-run.

• Pace from Garmin or GPS — listens for Garmin Connect broadcasts
  during your run and falls back to iPhone GPS + pedometer cadence
  within five seconds if no watch signal is present.

• Voice pace coach — speaks current and average pace every 500 m,
  1 km, 2 km, or 5 km, with automatic audio ducking so the music and
  metronome step out of the way during each callout.

• Live dashboard — large current pace and target BPM displays,
  connection status badge (Garmin / iPhone GPS), distance, average
  pace, and steps per minute.

HOW IT WORKS

1. Choose a target cadence on the dashboard. 175 BPM is a sensible
   starting point.
2. Queue a playlist or song from your Apple Music library.
3. Tap Start Workout. Music plays at the adjusted tempo, the
   metronome clicks at your target, and pace tracking begins.
4. The voice coach announces pace at the interval you've set.
5. Drag the BPM slider any time — the music and metronome retune
   instantly.

WHO IT'S FOR

Cadence-aware runners. Form-focused trainers. Marathoners who train
by rhythm. Garmin watch users who want their phone library to keep
pace with their wrist. Anyone tired of building "exactly 175 BPM"
playlists by hand.

APPLE MUSIC

An Apple Music subscription is required for playback. Tempo
adjustment works most reliably on tracks downloaded to your library;
streaming-only catalog tracks may not honour playback rate changes.
You can enter a Song BPM manually for any track and Runifier
remembers it.

PRIVACY

Runifier doesn't send your location, pace, music library, or BPM
entries off your device. All BPM data is stored locally. No
analytics, no ads, no third-party trackers.


## Version history (last 1 release)

### 1.0 — 2026-05-19

No release notes.

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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 2026-06-02.*