PowerBell vs Treadwell
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PowerBell
This app offers guided daily kettlebell practices designed for gradual strength and endurance building. It provides step-by-step instructions, timers, and a catalog of hundreds of practices to help users develop a consistent fitness habit without soreness.
- Guided step-by-step instruction
- Progress tracking with timers
- Weekly updated practices
- Extensive catalog of practices
- Achievement tracking
- Cross-device progress sync
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*****Philosophy***** We believe in continuous practice and developing the habit of getting stronger and faster one day at a time. *****A Practice, not a workout***** We created all practices for great results built by tiny steps, avoid soreness and promote a continuous daily practice. *****Guided Practice***** Step by step instruction and timer to help you keep track and progress of the practice. *****Weekly Practices***** A collection of 6 practices updated on a weekly basis that help you develop your body for speed, strength and endurance. *****The Catalogue***** 100s of ready to use practices created with specific purposes to help you practice anytime, everywhere. *****Achievements***** Keep track of your hard work and effort. See when you start slipping and get back on track. Camera Permissions This permission is optional and not granting access will not hinder the app experience in any way. The use we make of the camera is to enable you to synchronise your progress with multiple devices by scanning a QR Code.
Treadwell
Accurately measures your real treadmill speed and distance using your phone's camera and LiDAR sensor. It helps you understand discrepancies between treadmill displays and actual performance, and can calibrate machines for precise training.
- Real-time speed and pace measurement
- Treadmill calibration
- Workout tracking with pause/resume
- Accurate distance reporting
- LiDAR sensor integration
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Your treadmill said 5 miles. You actually ran 4 miles, and your watch said something else entirely. You'd never have known. A treadmill doesn't measure your speed. The display shows the number it was told to hit, from motor RPM and an assumed belt size. Belt slip, wear, and drift push your real speed off that number, and the belt slows a touch every time your foot lands. So the "6.0" you're staring at is really a guess, and your watch just copies it. Treadwell measures the belt itself. Hold your phone steady over the running belt for a few seconds. Using the camera and the LiDAR sensor on your iPhone Pro, the app watches the belt surface move and works out how fast it's actually traveling, then shows you your true pace and distance. WHAT YOU GET • Quick Measure: point, hold for a few seconds, get your real speed and pace. Tell it what your treadmill is set to and it shows you exactly how far off that number is. • Calibrate a treadmill: measure a few points once, and the app learns that specific machine. After that it tells you the true speed for any setting on the display, or which setting to dial in to hit a target pace. • Workout mode: lock in your measured speed and let the app track your time, distance, and pace for the run, with pause, resume, and change-pace on the fly. BUILT HONEST This app would rather tell you nothing than tell you a wrong number. If it can't get a clean read (bad angle, belt out of frame, phone not steady) it says so and asks you to try again. It never invents a number to fill the gap. So when it gives you a pace, you can trust it. WHO IT'S FOR Runners who train on a treadmill and want to know what they actually ran. If you've ever finished a "tempo run" wondering whether you really hit the pace, or watched the treadmill pile up more miles than your legs felt, this is for you. REQUIREMENTS Treadwell needs the LiDAR sensor, so it requires an iPhone Pro or Pro Max (iPhone 12 Pro or later). Best results on recent Pro models. iPhone only. The camera reads your treadmill belt's logo or markings as they pass, so it needs a belt with something visible on it. Nearly every gym treadmill has one; some plain home belts don't. Measuring works best at your usual running speed. One safety note: step to the side of the belt to measure. Never stand on a moving belt to hold your phone.
Screenshots
Verdict
The clearest difference is price: Treadwell at Free against PowerBell's $13.99. Treadwell also leads on rating (5.0 vs 4.5). PowerBell's advantage is in-app purchases (none vs 1) and update cadence (every 4 weeks vs every 3 months). On ads 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
Treadwell is free to download; PowerBell costs $13.99 up front. Treadwell sells 1 one-off in-app purchase. PowerBell asks for nothing beyond the download.
Treadwell holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
PowerBell ships an update every 4 weeks, Treadwell every 3 months. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.
| Parameter | PowerBell | Treadwell |
|---|---|---|
| Price | $13.99 | Free — better |
| Rating | 4.5 (4 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 77.8% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 4 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 15.1 — better | 26.4 |
| Further details — not scored | ||
| Size | 40 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Bitello Studio | Bryan Peralta |
Customer experience
PowerBell
Treadwell
In-app purchases
PowerBell
No in-app purchases
Treadwell
- Treadwell Pro$14.99









