Compare Workout Session vs OpenTrailPaper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Compare Workout Session
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See the bigger picture -- not just today's workout. Quickly compare your workouts from Apple Health side by side. Make sense of how your workouts have been making you better. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
OpenTrailPaper
Plan routes, create offline maps, and review cycling activities with this open-source companion app. It syncs seamlessly with a DIY e-paper bike computer, offering turn-by-turn navigation and ride data analysis without requiring an account or subscription.
- Route planning with destination search
- Offline map creation for any area
- Ride review with detailed metrics
- Device tuning and sensor pairing
- Bluetooth syncing with head unit
- Completely offline functionality
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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.
Screenshots
Verdict
The clearest difference is in-app purchases: OpenTrailPaper at none against Compare Workout Session's 1. Compare Workout Session's advantage is update cadence (weekly vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Compare Workout Session sells 1 in-app purchase, starting at $17.99 per year. OpenTrailPaper asks for nothing beyond the download.
Compare Workout Session ships an update weekly, OpenTrailPaper fortnightly. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.
| Parameter | Compare Workout Session | OpenTrailPaper |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | UX First | Raemond Bergstrom-Wood |
In-app purchases
Compare Workout Session
- Pro14 Days trial$17.991 Year
OpenTrailPaper
No in-app purchases
Questions
Is Compare Workout Session free?
Is OpenTrailPaper free?
Do Compare Workout Session or OpenTrailPaper have ads?
Which is updated more often, Compare Workout Session or OpenTrailPaper?
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