Side by side
tda vs Trayzero
Both stand on to-do list apps. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxMacWindows
tda combines deep task structure with local storage and agent-oriented CLI commands. It is a free option for terminal workflows, though some interfaces remain roadmap items.
Visit tda Free plan AndroidiPhone
Trayzero combines a structured GTD workflow with local storage, mobile capture, reviews, and reminders. Its free plan provides the complete feature set, while paid supporter options are cosmetic.
Visit TrayzeroThe facts
| tda | Trayzero | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Mac, Windows | Android, iPhone |
| Lowest paid plan | Free or on request | See the plans |
| Plans published | 1 | 6 |
| Maker | Not published | Trayzero |
| Website | github.com | trayzero.app |
| On to-do list apps | #77 of 150 | #73 of 150 |
tda: what it does well
- Local database needs no account or server
- Supports unlimited-depth task hierarchies
- Offers blocked-by dependency relationships
- Imports and exports Markdown or JSON
- CLI provides structured agent workflows
What to know first
- Described as an early build
- HTTP API is only planned
- MCP server is only planned
- External issues do not synchronize live
Trayzero: what it does well
- Full GTD lists and inbox processing
- On-device SQLite storage without cloud sync
- Voice capture, widgets, and attachments
- Optional two-way calendar synchronization
- Free plan includes all features
What to know first
- Supporter purchases add cosmetic extras only
- No account or cloud sync available
- Calendar sync is optional, not automatic