Pacelit — Pace & coaching.
Run-pacing app with adaptive plans, Apple Watch live coaching, and an in-product changelog the team actually publishes to. TestFlight today, App Store next.
Year
2025
Engagement
Founder-led product, public web surface live
Platforms
iOS · watchOS · Web
Stack
Expo · Swift · Next.js
5K TempoMi 2 / 3
6:24/mi
−0:08 ahead of plan
148
BPM
3.21mi
20:31total
Problem
Adaptive pace coaching with a real changelog
Pace apps tend to either lock you into their plan or hand you noisy raw GPS data with no coach in the loop. The founder wanted a runner-facing product with a real published changelog so users can see the work being done — not just an unmoving App Store page.
Approach
Native runner apps on iOS (React Native via Expo) and watchOS (SwiftUI), with a public Next.js web surface for the marketing, product features, and changelog. Releases are surfaced publicly so the audience can read what shipped this week, not what shipped a year ago.
Architecture
- MobileReact Native (Expo) phone app — described on the product page as the runner-facing surface.
- WatchNative SwiftUI watchOS app — described on the product page as the wrist-side coach.
- WebNext.js public web surface in this repo — landing, terms, support, and the changelog route at `/apps/pacelit/changelog`.
- Release rhythmPublic `/changelog` page so each shipped build is documented for the audience the moment it lands.
Outcomes
- iOS + watchOSNative surfaces on phone and wrist, paired with a single web home.
- /changelogPublic release log on the web surface — users never have to wonder if the product is being worked on.
- One repo, one voiceMarketing + legal + changelog all live in the same Next.js codebase, so the product story stays consistent.
What we'd build next
- Wire an RSS feed off the `/changelog` route so power users can subscribe without polling the page.
- Per-entry deep links on the changelog so a specific release can be shared with its own URL.
- OpenGraph image generation per changelog entry — currently the route inherits the generic site OG.
Case study verified against code on 2026-05-20
Related work
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Dinner
Hen of the Wood, Burlington
- Maple-glazed duck$32.00
- Roasted carrots$14.00
- Bread + butter$8.00
- Wine pairing × 4$76.00
Total · 4 ways$130.00
Your share$32.50
Group expenses
Split a tab, share a link, settle without IOUs
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