RZ Fit vs TreadSpan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RZ Fit
Manage your fitness membership, book sessions, and track your progress. Access exclusive member discounts and rewards through a referral program. Stay informed about upcoming events and fitness community news.
- Book fitness sessions
- Track workouts
- Access member discounts
- Referral rewards program
- Event updates
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Explore all the benefits of being a Rezults Fitness member! Book your session directly on the app. Track your workouts and accountability. Access exclusive member discounts and participate in the referrals program for even more rewards. Stay up to date with upcoming events and more! Course section coming soon also!
TreadSpan
This app simplifies tracking steps for treadmill desk users, automatically logging activity without manual session input. It provides detailed step metrics and syncs with Apple Health for organized fitness data.
- Automatic treadmill session logging
- Distinguishes treadmill steps from other activity
- Syncs with Apple Health
- Open source with Github code available
- Supports treadmills with app capabilities
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Treadmill desk users have different needs than treadmill users. Treadspan was built for the walking pad use case. Someone that wants to track their steps throughout the day without being a slave to an app to log each session. This app coupled with a $17 chip, you can buy off Amazon - your treadmill sessions will be automatically stored in memory and ready for sync whenever you choose—no need to log each session individually. This means you can focus on your work instead of logging each workout. Treadspan also provides detailed step metrics, distinguishing between treadmill activity and other sources, and syncs directly with Apple Health to keep your fitness data organized. Supports most treadmills that have app capabilities. Take control of your treadmill tracking with Treadspan—sync when you want, not after every session! Treadspan is open source and full source code is available on Github. The hope is this project will gain traction and other people will add firmware for other treadmills overtime.
Screenshots
Verdict
The clearest difference is update cadence: TreadSpan at monthly against RZ Fit's every 2 months. RZ Fit's advantage is iOS requirement (15.1 vs 18.0). On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 5.0 for RZ Fit against 5.0 for TreadSpan. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
RZ Fit ships an update every 2 months, TreadSpan monthly. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.
| Parameter | RZ Fit | TreadSpan |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 86 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Spotbee, Inc. | Blake Robertson |
Customer experience
RZ Fit
TreadSpan
In-app purchases
RZ Fit
No in-app purchases
TreadSpan
No in-app purchases
