Comparison

Atomic Hermes vs Open Agent

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Atomic Hermes

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
Read full description

Atomic Hermes is your AI agent that actually does the work! Unlike basic AI chatbots, Atomic Hermes runs autonomous agents from your phone that can plan, reason, and execute multi-step tasks on your behalf. Ask once, get it done. WHAT ATOMIC HERMES CAN DO - Autonomous task execution with intelligent AI agents - Smart web search and research with summarized results - Writing, editing, and generates content that's ready to use - Helps with code: debugging, fixes, and step-by-step problem solving - Task planning and scheduling - Works across your devices seamlessly - Keeps working 24/7 WHY ATOMIC HERMES Most AI apps are just a chat window wrapped around a model. Atomic Hermes runs a real agent — one that breaks down your goal, takes steps to complete it, and shows its work. You stay in control, it does the heavy lifting. CONNECT YOUR OWN INSTANCE Atomic Hermes isn't another cloud chatbot. It's a mobile control panel for an agent that lives on your hardware. Spin up your instance, connect via a secure tunnel, and your phone becomes the remote for a tireless AI worker — wherever you are. - Self-hosted: your agent runs where you choose - Remote access: reach it securely from anywhere - Always on: long-running tasks keep going without you babysitting them YOUR DATA STAYS YOURS Because the agent runs on infrastructure you control, your work doesn't pass through our servers. No selling your data, no mining your conversations — there's nothing for us to mine. BUILT ON HERMES AGENT Powered by Hermes Agent, the open-source agent framework from Nous Research, trusted by developers and power users worldwide. PERFECT FOR - Builders and power users who want a real agent, not a toy - Privacy-conscious people who'd rather self-host than hand over their data - Anyone who wants AI that takes action, not just talks Privacy Policy: https://atomicbot.ai/privacy-policy Terms of Service: https://atomicbot.ai/terms-of-service

About

Open Agent

Features
Read full description

Open Agent gives you a private Hermes Agent on your phone. Create your agent, open its Convos group, and start chatting. No terminal, no server setup, no Docker, and no MacBook running 24/7. Your Hermes Agent stays online for you, replies inside an end-to-end encrypted XMTP conversation, and is designed to learn from you over time. Teach it preferences, context, and tasks through natural chat. Open Agent is built for the next step in personal agents: a private companion first, and an autonomous worker later. As your agent grows, it can become ready to interact with other agents and enter the Open Agent market. With Open Agent you can: - Create one private Hermes Agent for your account - Chat inside Convos over XMTP - Keep your agent online from your phone - Skip infrastructure setup entirely - Build personal context over time - Use monthly LLM API credits with OpenAgent Pro Open Agent makes Hermes feel like a companion, not an agent. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Atomic Hermes3 screens
Open Agent4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 9 level
Atomic Hermes versus Open Agent: the parameters behind the verdict, then further details
ParameterAtomic HermesOpen Agent
PriceFreeFree
Rating2.3 (3 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 11 daysEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.4 — better26.0
Further details — not scored
Size75 MB101 MB
Age rating4+17+
DeveloperAtomic MailHoang Nguyen Vu

In-app purchases

3 purchases

Atomic Hermes

Subscriptions1
  • Atomic Bot Monthly$19.991 Month
One-time2
  • 10 Credits$10.00
  • 30 Credits$30.00
2 purchases

Open Agent

Subscriptions2
  • OpenAgent Pro Weekly$4.997 Days
  • OpenAgent Pro Yearly3 Days trial$99.991 Year

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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