Side by side
Otto vs SeaShell
Both stand on ai coding assistants. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan AndroidAPIiPhone+5
Otto offers a broad control layer for coding agents across desktop, web, mobile, and CLI clients. Its self-hosted privacy model is useful for developers who can manage providers and host security themselves.
Visit Otto Free plan LinuxMacSelf-hosted+1
SeaShell emphasizes controlled terminal workflows, local models, and permission-gated changes. Its plans range from a free local setup to organization features such as SSO, audit controls, air-gapped deployment, and named support.
Visit SeaShellThe facts
| Otto | SeaShell | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Android, API, iPhone, Linux, Mac, Self-hosted, Web, Windows | Linux, Mac, Self-hosted, Windows |
| Lowest paid plan | Free or on request | Team: $30 a month |
| Plans published | 1 | 6 |
| Maker | Not published | Not published |
| Website | otto-code.me | seashell.sh |
| On ai coding assistants | #53 of 103 | #49 of 103 |
Otto: what it does well
- Supports several named agent providers
- Includes browser-based application verification
- Offers team roles and scheduled tasks
- Provides Git review and merge workflows
- No required cloud account or telemetry
What to know first
- No agent is included
- Requires provider installation and authentication
- No iOS build yet
- Users secure their own host and credentials
SeaShell: what it does well
- Runs locally on three desktop platforms
- Read-only planning before edits
- Supports local models and provider keys
- MCP server integrations
- Offline network restriction mode
What to know first
- Hosted providers receive provider calls
- Not SOC 2 audited
- Core support is community-based
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