# AIOS vs Atat — Fit & Features

Canonical: https://trutool.co/compare/aios-vs-atat
Author: Snehil (https://trutool.co/authors/snehil)

Compare AIOS and Atat by use case, features, limitations, and evaluation questions.

## Compare fit, features, and limitations

### AIOS
AIOS: AI Agent Operating System.
Best fit: People and teams evaluating ai agents for a specific workflow.
- Core product workflow
Before you choose: Test a representative task, inspect outputs, and confirm integrations, permissions, data handling, licensing, and current costs.
Pricing: https://github.com/pricing
- [Read AIOS profile](https://trutool.co/tools/aios): Read AIOS profile

### Atat
ATAT is an email client for AI Agents. Deploy dozens of AI agents through a single email address (IMAP/SMTP) using the OpenAI API. Just add credentials, create one email and the aliases you need, and you have agents over email. Just add.
Best fit: People and teams evaluating ai agents for a specific workflow.
- Core product workflow
Before you choose: Test a representative task, inspect outputs, and confirm integrations, permissions, data handling, licensing, and current costs.
Pricing: https://github.com/pricing
- [Read Atat profile](https://trutool.co/tools/atat): Read Atat profile