Runifier is made and published by Hidong Kwak. AppBrain is an independent app data site and isn't affiliated with Hidong Kwak. The app name, icon, screenshots and description belong to Hidong Kwak and are shown as published on the App Store.
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- Last updated
- May 19, 2026
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Releases
Updates seen on the App Store- Version
- 1.0
- Launched
- May 2026
No changelog data
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 8.30 MB
- Content rating
- Everyone
Technologies used by Runifier
About the app and developer
About Runifier
Runifier is a health & fitness app developed by Hidong Kwak.
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The app has no ratings yet.
App Information
Runifier is freely available from the App Store. The app size is 8.30 MB. The latest version available is 1.0. The last update was on May 19, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since May 2026.
Developer information for Hidong Kwak
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Store listing
By Hidong Kwak, from the App Store
Description by Hidong Kwak Written by the developer, not by AppBrain. Click to read.
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.