# 18 GYM vs Calibro

The clearest difference is update cadence: Calibro at weekly against 18 GYM's every 5 weeks. 18 GYM's advantage is iOS requirement (15.6 vs 18.0). 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.

18 GYM ships an update every 5 weeks, Calibro weekly. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 18 GYM | Calibro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/18-gym/id1572426803/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 59 MB | 25 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [UPFIT SRL](https://appshunter.io/developer/1498932655) | [Dan-Florin Muresan](https://appshunter.io/developer/1896534602) |

## What reviewers say

### 18 GYM

[App page](https://appshunter.io/ios/app/18-gym/id1572426803)

Manage your gym activities, from checking class schedules and booking spots to renewing memberships and purchasing services. Track your membership details and stay updated on gym news.

**Highlights:** Class schedule viewing, In-app class booking, Online membership renewal, New membership sign-up, Service purchases, Account details tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### Calibro

[App page](https://appshunter.io/ios/app/calibro/id6768055113)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 18 GYM free?

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

### Is Calibro free?

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

### Do 18 GYM or Calibro have ads?

Neither 18 GYM nor Calibro shows ads.

### Which is updated more often, 18 GYM or Calibro?

18 GYM ships an update every 5 weeks, and Calibro weekly. Most recently, 18 GYM was updated on November 7, 2026 and Calibro on October 31, 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.*