# Idermic vs Opium

The clearest difference is iOS requirement: Opium at 12.0 against Idermic's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Idermic ships an update every 5 weeks, Opium every 3 weeks. The most recent releases landed on September 14, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Idermic | Opium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/opium/id6714474721/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 27 MB | 68 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IDERMIC LLC](https://appshunter.io/developer/1873290125) | [LUCKYSOFT OU](https://appshunter.io/developer/1242118176) |

## What reviewers say

### Idermic

[App page](https://appshunter.io/ios/app/idermic/id1608891420)

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Idermic free?

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

### Is Opium free?

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

### Do Idermic or Opium have ads?

Neither Idermic nor Opium shows ads.

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

Idermic ships an update every 5 weeks, and Opium every 3 weeks. Most recently, Idermic was updated on September 14, 2026 and Opium on September 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*