# Opium vs StableFit

The clearest difference is rating: Opium at 5.0 against StableFit's 4.0. Opium also leads on iOS requirement (12.0 vs 15.0.0). On price, ratings volume, update cadence and ads there is nothing between them.

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

Opium holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Opium ships an update every 3 weeks, StableFit fortnightly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Opium | StableFit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/opium/id6714474721/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/stablefit/id6755842057/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 68 MB | 154 MB |
| Requires iOS | **12.0** | 15.0.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LUCKYSOFT OU](https://appshunter.io/developer/1242118176) | [SavvaDev](https://appshunter.io/developer/1773169566) |

## What reviewers say

### Opium

[App page](https://appshunter.io/ios/app/opium/id6714474721)

This app offers a convenient platform for accessing various functional training sessions. It allows users to easily book classes, purchase memberships, and stay updated on club news and partner offers. Join a supportive community to achieve your fitness goals.

**Highlights:** Book functional training, TRX, stretching, yoga, and boxing classes, Purchase and manage fitness memberships, Receive club news and schedule updates, Access exclusive partner offers and bonuses, Connect with a supportive fitness community

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

**In-app purchases:** none


### StableFit

[App page](https://appshunter.io/ios/app/stablefit/id6755842057)

Track your fitness progress, complete workouts, and monitor your nutrition with this app designed for clients of personal trainers. It offers real-time synchronization with your trainer, allowing for seamless communication and progress updates.

**Highlights:** Workout tracking and completion, In-app chat with trainer, Nutrition tracking (calories, macros), Barcode food entry, AI-powered meal photo analysis, Body measurement tracking, Progress photo comparison

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

**In-app purchases:** none


## Frequently asked questions

### Is Opium free?

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

### Is StableFit free?

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

### Which has better reviews, Opium or StableFit?

Opium is rated higher. Opium averages 5.0 out of 5 from 1 ratings, while StableFit averages 4.0 from 1 ratings.

### Do Opium or StableFit have ads?

Neither Opium nor StableFit shows ads.

### Which is updated more often, Opium or StableFit?

Opium ships an update every 3 weeks, and StableFit fortnightly. Most recently, Opium was updated on October 30, 2026 and StableFit on October 28, 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.*