# CityFit vs OOS

The clearest difference is update cadence: CityFit at monthly against OOS's every 3 months. OOS's advantage is iOS requirement (12.4 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CityFit ships an update monthly, OOS every 3 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | CityFit | OOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (11 ratings)](https://appshunter.io/ios/app/cityfit/id1478394131/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | — |
| Size | 113 MB | 42 MB |
| Requires iOS | 15.6 | **12.4** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CRM Resources Sp. z o.o.](https://appshunter.io/developer/1478394130) | [Lukasz Kmiecik](https://appshunter.io/developer/1676048515) |

## What reviewers say

### CityFit

[App page](https://appshunter.io/ios/app/cityfit/id1478394131)

This app helps you achieve your fitness goals by tracking workouts, managing gym access, and booking classes. Access training plans, connect with trainers, and monitor your progress all from your smartphone.

**Highlights:** Workout tracking and progress monitoring, Gym access and 24/7 entry, Trainer booking and scheduling, Access to training and diet plans, Group class registration, Membership management and billing, Referral program for discounts

**In-app purchases:** none


### OOS

[App page](https://appshunter.io/ios/app/oos/id6446111586)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CityFit free?

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

### Is OOS free?

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

### Do CityFit or OOS have ads?

Neither CityFit nor OOS shows ads.

### Which is updated more often, CityFit or OOS?

CityFit ships an update monthly, and OOS every 3 months. Most recently, CityFit was updated on November 3, 2026 and OOS on November 3, 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.*