# RZ Fit vs TreadSpan

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.

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.

## The numbers

| Metric | RZ Fit | TreadSpan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/rz-fit/id1643204089/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/treadspan/id6742421746/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 86 MB | 3 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Spotbee, Inc.](https://appshunter.io/developer/1465231993) | [Blake Robertson](https://appshunter.io/developer/1798321319) |

## What reviewers say

### RZ Fit

[App page](https://appshunter.io/ios/app/rz-fit/id1643204089)

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.

**Highlights:** Book fitness sessions, Track workouts, Access member discounts, Referral rewards program, Event updates

**Features:** Apple Wallet

**In-app purchases:** none


### TreadSpan

[App page](https://appshunter.io/ios/app/treadspan/id6742421746)

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.

**Highlights:** 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

**In-app purchases:** none


## Frequently asked questions

### Is RZ Fit free?

RZ Fit is free to download, with no in-app purchases.

### Is TreadSpan free?

TreadSpan is free to download, with no in-app purchases.

### Which has better reviews, RZ Fit or TreadSpan?

RZ Fit and TreadSpan are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do RZ Fit or TreadSpan have ads?

Neither RZ Fit nor TreadSpan shows ads.

### Which is updated more often, RZ Fit or TreadSpan?

RZ Fit ships an update every 2 months, and TreadSpan monthly. Most recently, RZ Fit was updated on October 13, 2026 and TreadSpan on October 15, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*