IntervalRunner: Pace Coach

Run every interval exactly as planned. IntervalRunner checks your pace against your target and tells you the moment you drift — by voice, by tone and with a tap on your wrist — so you never have to look at the screen.

ALERTS YOU CAN TRUST
• Smoothed pace instead of jumpy GPS, with a tolerance band you choose
• Different tones and haptics for too fast and too slow
• Natural AI-generated voice cues that lower your music and keep working with the screen locked
• Pace and heart rate spoken at every km or mile

BUILD ANY INTERVAL
• Time or distance steps with a target pace or speed
• 14 editable presets: 400 m repeats, Yasso 800, ladder, pyramid, fartlek, tempo, run/walk and more
• Slow jogging and Zone 2 presets keep easy runs truly easy, with a cue the moment you speed up (Zone 2 heart-rate target with Pro)
• Three count modes: start when you reach target pace, count only while on target, or count right away

WITH OR WITHOUT A WEAR OS WATCH
With a Wear OS watch, the watch measures and taps your wrist while your phone shows the numbers and speaks. No watch? Run with your phone alone — or with just the watch. Treadmill mode needs no GPS: run on time at the speed you set on the machine, then confirm the distance from its display. Add the Wear OS tile or a watch-face complication to open your favorite workout's start screen in a tap and see your step and time left as you run.

After each run, see target vs. actual for every step. History shows monthly and yearly totals. History can also show runs other apps saved to Health Connect.

SHARE SHOTS
Turn any run into a photo or video with your stats — free.
• Use your own photo or video, or a designed theme, with stickers and text
• Save as a GIF or video too: numbers count up from zero and the route draws itself

FREE
Everything you need to run: the builder, presets, all alerts and count modes, treadmill mode, unlimited history, Health Connect, the run notification, GPX/JSON export and 3 saved workouts of your own. Step analysis is open for your first two runs. The free version shows ads, never during a run.

INTERVALRUNNER PRO
• No ads
• Step analysis, trends and personal bests
• Heart-rate zone targets, and recovery that ends when your heart rate drops
• Unlimited saved workouts and folders
• Nested repeats and ladder, pyramid and Yasso 800 generators
• Per-second CSV export
• Recap share shots: weekly, monthly and yearly totals
• Route views for share shots: bird's-eye, oblique and isometric (top-down is free)
Heart-rate features need a Wear OS watch or a Bluetooth heart-rate monitor.

SUBSCRIPTION
IntervalRunner Pro is an auto-renewing subscription, available monthly or yearly. The price is shown in the app and varies by country or region. The yearly plan includes a 7-day free trial for eligible new subscribers; the monthly plan has no trial. Payment is charged to your Google Play account when you confirm the purchase, or when the free trial ends. The subscription renews automatically unless canceled before the end of the current period. Manage or cancel anytime in Google Play > Payments & subscriptions > Subscriptions.
Privacy Policy: https://juki-j.github.io/privacy-policy/intervalrunner-en.html

PRIVACY
No account and no server of ours. Your runs, routes and health data stay on your phone and watch and are never sent to us, to advertisers or to analytics. Ads in the free version come from Google AdMob and use your advertising ID, which you can reset or delete in your phone’s settings. The Meta SDK records app installs and sessions to evaluate our own Facebook and Instagram ads; it never receives workout, health or GPS location data and is off when your Google Play country is in the EEA, the UK or Switzerland. Firebase (Crashlytics and Analytics) collects crash reports and usage statistics to keep the app stable; they are never used to track you or for ads. If you allow it, workouts are saved to Health Connect, which stays under your control.

Voice cues are AI-generated speech.