Privacy policy
Last updated 21 September 2026
Pace Coach is an iPhone app made by Denny Wijaya, an independent developer in New Zealand. This page explains what the app keeps on your phone, what it sends off it, who receives that, and why. "I" and "me" below means the developer.
- There is no account. Pace Coach never asks for your name, email or phone number.
- Your GPS route stays on your iPhone. Coordinates are never sent anywhere.
- Some run numbers, such as distance and pace, are sent for usage analytics and to write your AI recap.
- No ads, no selling data, and no tracking across other apps or websites.
What stays on your iPhone
Location
While a run is active, Pace Coach reads your GPS position, including in the background when the screen is off, to measure distance and pace. The coordinates are used on the device to calculate your numbers and are never uploaded. Location is only read during a run you start yourself.
Run history
Every finished run is saved in a database on your iPhone: date, distance, duration, average pace, target pace, per-kilometre splits and the AI recap text. There is no cloud copy, so deleting the app deletes this history permanently.
Spoken coaching
The voice cues you hear while running, such as "pick it up" or your kilometre split, are generated on the device. Nothing is sent to produce them.
What leaves your iPhone
Usage analytics
Sent to PostHog
To understand how the app is used and where it breaks, Pace Coach sends short usage events to PostHog, an analytics service hosted in the United States:
- the app was opened
- a run was set up, started or completed
- location permission was denied
- the Pro screen was shown, and whether it ended in a purchase, a restore or a cancel
- the App Store rating prompt was shown
Some of these events include run numbers: the goal distance, target pace, and for a completed run the distance, duration and average pace. Each event carries a random ID created when you install the app. It is not linked to your name, your Apple Account or your device's advertising identifier, and it is replaced if you reinstall. PostHog keeps these events for up to one year.
AI recap
Sent to my coaching service, then OpenAI
After a run, Pace Coach can write a short recap of how it went. To do that it sends text describing the run to a small coaching service I run on Cloudflare, which passes it to OpenAI to write the recap and returns the result. The text contains:
- your goal distance and target pace
- this run's distance, time, average pace and per-kilometre splits
- a summary of your recent runs: distance, average pace, target pace and how many days ago
It contains no coordinates, no install ID and no contact details. My coaching service does not store it. OpenAI processes it under its API terms, which do not allow it to be used to train their models. This only happens for recaps you are entitled to: free recaps and Pro. A locked recap sends nothing.
Subscriptions
Handled by Apple and RevenueCat
Pace Coach Pro is an auto-renewable subscription. Apple processes the payment, and I never see your payment details. RevenueCat verifies whether you have Pro. It receives an anonymous ID it creates for the app and the transaction details Apple provides, never your name or card. See RevenueCat's privacy policy.
What Pace Coach does not do
- No advertising of any kind, and no advertising SDKs.
- No selling, renting or sharing of data with advertisers or data brokers.
- No tracking across other companies' apps or websites.
- No use of HealthKit, contacts, photos, the microphone or the camera.
Your choices
- You can decline location access, though Pace Coach cannot measure a run without it. You can change this at any time in Settings, Privacy & Security, Location Services.
- Deleting the app removes all run history from your iPhone.
- Because analytics are tied only to a random install ID, I cannot look up your events by name. If you have a privacy request or question, email me and I will do what I can.
Children
Pace Coach is not designed for children and does not knowingly collect personal information from anyone under 13. It collects no names, contact details or other information that identifies a person.
Changes
If what Pace Coach collects changes, I will update this page and the date at the top before the app update that makes the change is released.
Contact
Questions about this policy: [email protected]. You can also find help on the support page.