# ERMIS vs OpenCody

The clearest difference is rating: OpenCody at 5.0 against ERMIS's 3.7. OpenCody also leads on review sentiment (33% vs 0%). ERMIS's advantage is update cadence (every 5 days vs every 5 weeks) and iOS requirement (17.0 vs 26). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. ERMIS sells 2 in-app purchases, starting at $19.99 per month and OpenCody sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

OpenCody holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 0% of ERMIS's written reviews are positive against 33% of OpenCody's.

ERMIS ships an update every 5 days, OpenCody every 5 weeks. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | ERMIS | OpenCody |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/ermis-client-for-hermes/id6759341434/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/opencody-an-opencode-client/id6760118911/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 13 MB | 9 MB |
| Requires iOS | **17.0** | 26 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Ilya Vishneuski](https://appshunter.io/developer/1878175811) | [Fabian Will](https://appshunter.io/developer/1842834628) |

## What reviewers say

### ERMIS

[App page](https://appshunter.io/ios/app/ermis-client-for-hermes/id6759341434)

This app provides a mobile interface to control your self-hosted AI agent. Manage complex workflows, research topics, draft content, and solve coding problems remotely. Your data remains on your instance for enhanced privacy and control.

**Highlights:** Connect to your Hermes Agent instance, Research topics and summarize, Write, edit, and generate content, Assist with coding and debugging, Plan tasks and organize workflows, Remote agent management

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $19.99 | per month |
| Premium | $199.99 | per year |


### OpenCody

[App page](https://appshunter.io/ios/app/opencody-an-opencode-client/id6760118911)

This app provides a private AI coding assistant that connects to your personal server. It allows you to chat with AI agents, manage projects, and review code changes on your mobile devices. All features are free, with optional in-app purchases for development support.

**Highlights:** Private AI coding assistant, Connects to personal OpenCode server, Real-time AI agent chat, Customizable agents and models, Integrated file explorer, Multi-project support, Privacy-focused design

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip Jar | $2.99 | one-time |
| Mid Tip Jar | $4.99 | one-time |
| Big Tip Jar | $9.99 | one-time |


## Frequently asked questions

### Is ERMIS free?

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

### Is OpenCody free?

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

### Which has better reviews, ERMIS or OpenCody?

OpenCody is rated higher. ERMIS averages 3.7 out of 5 from 3 ratings, while OpenCody averages 5.0 from 2 ratings.

### Do ERMIS or OpenCody have ads?

Neither ERMIS nor OpenCody shows ads.

### Which is updated more often, ERMIS or OpenCody?

ERMIS ships an update every 5 days, and OpenCody every 5 weeks. Most recently, ERMIS was updated on October 3, 2026 and OpenCody on October 14, 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.*