# Atomic Hermes vs Open Agent

The clearest difference is iOS requirement: Atomic Hermes at 13.4 against Open Agent's 26.0. On price, update cadence, 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 Open Agent sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Atomic Hermes ships an update every 11 days, Open Agent every 9 days. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Atomic Hermes | Open Agent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/atomic-hermes/id6759154616/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 75 MB | 101 MB |
| Requires iOS | **13.4** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Atomic Mail](https://appshunter.io/developer/1831027051) | [Hoang Nguyen Vu](https://appshunter.io/developer/1883922584) |

## 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 |


### Open Agent

[App page](https://appshunter.io/ios/app/open-agent/id6760329760)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpenAgent Pro Weekly | $4.99 | per 7 days |
| OpenAgent Pro Yearly | $99.99 | per year |


## Frequently asked questions

### Is Atomic Hermes free?

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

### Is Open Agent free?

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

### Do Atomic Hermes or Open Agent have ads?

Neither Atomic Hermes nor Open Agent shows ads.

### Which is updated more often, Atomic Hermes or Open Agent?

Atomic Hermes ships an update every 11 days, and Open Agent every 9 days. Most recently, Atomic Hermes was updated on October 9, 2026 and Open Agent on October 1, 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.*