Aruki

Coached interval walking with a calm voice in your pocket.

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Added Jul 2026

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What is Aruki?

Aruki is an iPhone app that coaches interval walking through timed audio cues, using the Japanese walking method to improve fitness. A calm voice guides you through alternating brisk and easy walking phases without requiring an Apple Watch, keeping your phone in your pocket while your music or podcasts continue playing. Designed for anyone seeking sustainable fitness through low-impact interval training.

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Key Features of Aruki

Real coach's voice in your language
Keeps music and podcasts playing — cue ducks underneath
No Apple Watch required — coached from phone
Lock-screen Live Activity shows phase and countdown
Spoken cues and gentle chimes
Timed slow-fast intervals coached start to finish
Live pace coaching with steps-per-minute (Pro)
Cadence metronome for pacing (Pro)
Custom interval protocols (Pro)
Full walk history (Pro; free keeps last 7 days)
Optional Apple Health sync
Washi-paper design interface

Who Should Use Aruki?

Build fitness and leg strength through accessible walking

Maintain sustainable exercise routine with high adherence

Improve cardiovascular health without heavy gym workouts

Practice interval training during daily walks

Stay motivated with consistent audio coaching

Aruki: Pros & Cons

✓Pros

Nearly everyone adheres to the program based on original research
Study participants gained real fitness, stronger legs, and lower blood pressure in five months
Calm, natural voice coaching avoids aggressive or stressful cues
No subscription required for basic features
Works entirely on iPhone without Apple Watch
Audio blends seamlessly with existing podcasts and music

✕Cons

Pro features require a paid lifetime purchase for pace coaching and full history
Free version limits walk history to last 7 days only

Frequently Asked Questions about Aruki

Do I need an Apple Watch to use Aruki?

No, Aruki is designed to work entirely from your iPhone in your pocket without requiring an Apple Watch.

Will Aruki interrupt my music or podcasts?

No, the voice cue ducks under your audio for a moment and then your music or podcast returns automatically.

What is the Japanese walking method?

It involves walking briskly for three minutes, then easing off for three minutes, and repeating this cycle five times, based on research from Shinshu University.

Do I need a subscription to use Aruki?

No, there is no subscription required. Japanese Walking Pro is a single lifetime purchase for advanced features.