OnUrMark vs JRTiming
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OnUrMark
This app provides a streamlined timer and data management solution for athletes and coaches. It allows for accurate timing of multiple participants and easy storage and export of training data, removing the need for manual logging.
- Volume button stopwatch mimicry
- Accurate multi-participant timing
- Easy data storage
- Data export functionality
- Focus on athletes, not screen interaction
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OnUrMark is a seamlessly integrated timer & data management tool which will revolutionize the way training times are made and stored for runners, swimmers, cyclists and any coach looking to log their athletes. The unique design, utilizing volume buttons to mimic a stopwatch, allows anyone to accurately time multiple runners, cyclists, swimmers or anything moving, then easily store and export the data. Simply put, it allows the user to focus on the athletes and not what they’re supposed to be hitting on the screen. This removes the need for professional athletes, coaches and trainers to use multiple time keepers and inconvenient training books, and also gives the public at large the ability to easily record races and save their data.
JRTiming
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Simply connect your chronometer via Bluetooth, sync it with a single tap, and unlock a wide range of powerful features. While using the app, the chronometer acts as a bridge between the photocells and your smartphone. Just make sure to stay within 40 meters of the chronometer for a stable connection. Once connected, there’s no need to interact with the chronometer directly—it just needs to stay on. All timing data will be saved automatically in the app. You can view your saved times, tag your workouts, and search through them using your custom tags. Easily export your workouts as images to share on social media, or export the data in Excel format. You can choose to Excel export individual workouts or all workouts within a selected date range, helping you keep track of your progress over time. Train hard and have fun!
Screenshots
Verdict
The clearest difference is update cadence: JRTiming at fortnightly against OnUrMark's every 3 months. OnUrMark's advantage is iOS requirement (8.2 vs 13.0). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
OnUrMark ships an update every 3 months, JRTiming fortnightly. The most recent releases landed on September 15, 2026 and September 25, 2026 respectively.
| Parameter | OnUrMark | JRTiming |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.2 — better | 13.0 |
| Further details — not scored | ||
| Size | 2 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Big O, LLC. | Jacques Riparelli |
In-app purchases
OnUrMark
No in-app purchases
JRTiming
No in-app purchases









