# ClassFit vs ZERO Training Center

The clearest difference is rating: ZERO Training Center at 5.0 against ClassFit's 4.0. ZERO Training Center also leads on iOS requirement (13.0 vs 15.6.1). On price, ratings volume, update cadence 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.

ZERO Training Center holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 20, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | ClassFit | ZERO Training Center |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/classfit/id6461457409/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zero-training-center/id6746328015/reviews)** |
| Number of ratings | 2 | 2 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 92 MB | 31 MB |
| Requires iOS | 15.6.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FastPlay Ltd.](https://appshunter.io/developer/995838392) | [TeamUp Sports](https://appshunter.io/developer/1449504626) |

## What reviewers say

### ClassFit

[App page](https://appshunter.io/ios/app/classfit/id6461457409)

Discover and join fitness classes hosted on the platform. Manage your memberships and account settings conveniently within the app.

**Highlights:** Find and join classes, Manage memberships, Account settings management, Class discovery

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


### ZERO Training Center

[App page](https://appshunter.io/ios/app/zero-training-center/id6746328015)

This app helps you manage your health and fitness journey. Book classes, track workout progress, monitor body measurements, and connect with club staff. It integrates with Apple Health to import data from wearables and track daily activity.

**Highlights:** Book classes online, Track workout progress, Monitor body measurements, Contact club staff, Apple Health integration, Import wearable data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ClassFit free?

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

### Is ZERO Training Center free?

ZERO Training Center is free to download, with no in-app purchases.

### Which has better reviews, ClassFit or ZERO Training Center?

ZERO Training Center is rated higher. ClassFit averages 4.0 out of 5 from 2 ratings, while ZERO Training Center averages 5.0 from 2 ratings.

### Do ClassFit or ZERO Training Center have ads?

Neither ClassFit nor ZERO Training Center shows ads.

### Which is updated more often, ClassFit or ZERO Training Center?

ClassFit ships an update every 3 weeks, and ZERO Training Center every 3 weeks. Most recently, ClassFit was updated on September 20, 2026 and ZERO Training Center on October 1, 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.*