# Atomic Hermes vs ERMIS

The clearest difference is review sentiment: ERMIS at 50% against Atomic Hermes's 0%. ERMIS also leads on rating (4.0 vs 2.3) and update cadence (every 5 days vs every 11 days). Atomic Hermes's advantage is iOS requirement (13.4 vs 17.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

ERMIS holds the better App Store score, 4.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 0% of Atomic Hermes's written reviews are positive against 50% of ERMIS's.

Atomic Hermes ships an update every 11 days, ERMIS every 5 days. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Atomic Hermes | ERMIS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/atomic-hermes/id6759154616/reviews) | **[4.0 (4 ratings)](https://appshunter.io/ios/app/ermis-client-for-hermes/id6759341434/reviews)** |
| Number of ratings | 3 | **4** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 75 MB | 15 MB |
| Requires iOS | **13.4** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Atomic Mail](https://appshunter.io/developer/1831027051) | [Ilya Vishneuski](https://appshunter.io/developer/1878175811) |

## What reviewers say

### Atomic Hermes

[App page](https://appshunter.io/ios/app/atomic-hermes/id6759154616)

This AI agent performs complex, multi-step tasks autonomously on your behalf. It plans, reasons, and executes actions across devices, offering smart web research, content generation, and code assistance. Your data remains private as the agent runs on your own hardware.

**Highlights:** Autonomous task execution, Intelligent AI agents, Smart web search and research, Content writing and editing, Code debugging and problem-solving, Task planning and scheduling, Cross-device compatibility

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Atomic Bot Monthly | $19.99 | per month |
| 10 Credits | $10.00 | one-time |
| 30 Credits | $30.00 | one-time |


### 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 |


## Frequently asked questions

### Is Atomic Hermes free?

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

### Is ERMIS free?

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

### Which has better reviews, Atomic Hermes or ERMIS?

ERMIS is rated higher. Atomic Hermes averages 2.3 out of 5 from 3 ratings, while ERMIS averages 4.0 from 4 ratings.

### Do Atomic Hermes or ERMIS have ads?

Neither Atomic Hermes nor ERMIS shows ads.

### Which is updated more often, Atomic Hermes or ERMIS?

Atomic Hermes ships an update every 11 days, and ERMIS every 5 days. Most recently, Atomic Hermes was updated on October 24, 2026 and ERMIS on October 20, 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.*