# 18 GYM vs Inner

The clearest difference is in-app purchases: 18 GYM at none against Inner's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Inner sells 1 in-app purchase, starting at $9.99 per month. 18 GYM asks for nothing beyond the download.

18 GYM ships an update every 5 weeks, Inner every 6 weeks. The most recent releases landed on October 12, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 18 GYM | Inner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/18-gym/id1572426803/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Free | — |
| Size | 59 MB | 15 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UPFIT SRL](https://appshunter.io/developer/1498932655) | [Nasturelul Vesel SRL](https://appshunter.io/developer/6787031889) |

## What reviewers say

### 18 GYM

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

Easily manage your gym activities, from checking class schedules and booking sessions to purchasing memberships and services. Track your account details, membership status, and stay updated on gym news.

**Highlights:** Class schedule viewing, In-app class booking, Online membership purchase, New member sign-up, Online service purchase, Account and membership details, Gym news and updates

**Features:** macOS Compatibility

**In-app purchases:** none


### Inner

[App page](https://appshunter.io/ios/app/inner-mapping-inside/id6787031887)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Inner Pro | $9.99 | per month |


## Frequently asked questions

### Is 18 GYM free?

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

### Is Inner free?

Inner is free to download, with in-app purchases available.

### Do 18 GYM or Inner have ads?

Neither 18 GYM nor Inner shows ads.

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

18 GYM ships an update every 5 weeks, and Inner every 6 weeks. Most recently, 18 GYM was updated on October 12, 2026 and Inner on September 21, 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.*