# Maximus21 vs RocketGym

The clearest difference is update cadence: RocketGym at every 6 weeks against Maximus21's every 3 months. RocketGym also leads on iOS requirement (13.4 vs 15.0). 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.

Maximus21 ships an update every 3 months, RocketGym every 6 weeks. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Maximus21 | RocketGym |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/maximus21/id1632651082/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 60 MB | 28 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maximus Fc](https://appshunter.io/developer/1632651084) | [FITBEIS, OOO](https://appshunter.io/developer/1530906929) |

## What reviewers say

### Maximus21

[App page](https://appshunter.io/ios/app/maximus21/id1632651082)

Manage your workouts, analyze results, and make online adjustments. Stay updated with club news, schedules, and special offers. Purchase club services directly through the app.

**Highlights:** Workout management, Performance analysis, Online adjustments, Club news and schedule, Special offers, In-club purchases

**Features:** macOS Compatibility

**In-app purchases:** none


### RocketGym

[App page](https://appshunter.io/ios/app/rocketgym/id6443844051)

This app allows fitness club and sports studio clients to view training schedules, book group sessions, and receive workout reminders. It also helps users track their membership and service expiration dates.

**Highlights:** View training schedules, Book group sessions, Receive workout reminders, Track membership expiration, Check service validity

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

**In-app purchases:** none


## Frequently asked questions

### Is Maximus21 free?

Maximus21 is free to download, with no in-app purchases.

### Is RocketGym free?

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

### Do Maximus21 or RocketGym have ads?

Neither Maximus21 nor RocketGym shows ads.

### Which is updated more often, Maximus21 or RocketGym?

Maximus21 ships an update every 3 months, and RocketGym every 6 weeks. Most recently, Maximus21 was updated on October 21, 2026 and RocketGym on October 24, 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.*