Løp vs OpenTrailPaper

Løp is the app for those who want to make running simple but structured. Create your own running plan in minutes, and stay motivated and focused. The app gives you a simple and minimalistic overview of your running plan and gives you smart suggestions, like the optimal time to run and what to wear. It’s designed to keep your session in focus without distractions. Easily calculate pace, time, or distance for your next run with a simple-to-use pace calculator. Integration with the Health app also gives you a quick overview of your personal records. No registration or login is required — all your data is automatically synced with iCloud across your devices.

OpenTrailPaper is the free companion app for the OpenTrailPaper e-paper bike computer — an open-source, sunlight-readable head unit you build yourself. The app handles everything that's awkward on a touch e-paper screen: planning routes, building offline maps, and reviewing your rides. Then it sends it all to your head unit over Bluetooth. No account, no cloud, no subscription. PLAN ROUTES — Search for any destination, preview the route on the map, and send it to your device as a GPX file. Turn-by-turn prompts guide you along the way — and your head unit follows the route even with no SD card and no signal. OFFLINE MAPS — Pick the area you ride and the app bakes offline map tiles straight onto the device's SD card. Roads, water, and parks render on the e-paper display wherever you go — no data connection required, ever. REVIEW YOUR RIDES — Pull your recorded rides off the device and see distance, moving time, speed, elevation gain, power, and heart rate, with your track drawn on the map. Every ride is a standard .fit file you can export and open anywhere. TUNE YOUR DEVICE — Adjust FTP, time zone, units, and backlight, and pair Bluetooth heart-rate and power sensors — all from your phone. Settings are saved to the device's flash so they persist across reboots. When a new firmware build is ready, update over the air with one tap. BUILT TO STAY OUT OF THE WAY - Works completely offline once set up — no phone or signal needed on the bike - No account and no subscription, ever - Nothing is uploaded; your routes and rides stay on your own devices - Fully open source WHY LOCATION AND BLUETOOTH — Bluetooth connects the app to your head unit to sync routes, maps, settings, and rides. Location (only while you're using the app) shows your position on the map, warm-starts the device's GPS so it locks on faster, and acts as a backup fix when the device can't see the sky. OpenTrailPaper pairs with the DIY OpenTrailPaper head unit. Build instructions, firmware, and full source are on GitHub.