# Фитнес vs Gravity 21

The clearest difference is review sentiment: Gravity 21 at 100% against Фитнес's 83%. Gravity 21 also leads on iOS requirement (13.4 vs 15.1). Фитнес's advantage is update cadence (fortnightly vs every 5 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Фитнес ships an update fortnightly, Gravity 21 every 5 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Фитнес | Gravity 21 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 41 MB | 29 MB |
| Requires iOS | 15.1 | **13.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Oleg Kopchevskiy](https://appshunter.io/developer/1534481748) | [Fitbase](https://appshunter.io/developer/1530906929) |

## What reviewers say

### Фитнес

[App page](https://appshunter.io/ios/app/tennisru/id1534481746)

Easily purchase monthly fitness club memberships and rent sports halls for various activities. Book spaces for personal workouts, group classes, or professional training sessions. View club photos and manage your bookings directly from your phone.

**Highlights:** Purchase monthly memberships, Rent sports halls, Book for group programs, Book for martial arts, Book for yoga, View club photos

**Features:** Vision Pro support

**In-app purchases:** none


### Gravity 21

[App page](https://appshunter.io/ios/app/gravity-21/id1668987927)

Manage your fitness club memberships and class schedules. Book group sessions, receive workout reminders, and track your membership validity. Stay updated with your fitness journey.

**Highlights:** View workout schedules, Book group training sessions, Receive workout reminders, Track membership expiry, Manage club services

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Фитнес free?

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

### Is Gravity 21 free?

Gravity 21 is free to download, with no in-app purchases.

### Do Фитнес or Gravity 21 have ads?

Neither Фитнес nor Gravity 21 shows ads.

### Which is updated more often, Фитнес or Gravity 21?

Фитнес ships an update fortnightly, and Gravity 21 every 5 weeks. Most recently, Фитнес was updated on November 3, 2026 and Gravity 21 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.*