Shortwave is freemium — a usable free tier with paid plans above it. Zero is free, with no paid plan attached. Both are listed under Email, Scheduling & Tasks, so this is a like-for-like comparison. Neither is ranked above the other — Flocci carries no sponsored placement.
Shortwave is freemium — a usable free tier with paid plans above it and is listed for AI email assistant for Gmail. Zero is free, with no paid plan attached and is listed for fully open-source (MIT license), self-hostable AI email client. Both sit in Email, Scheduling & Tasks.
Zero is the cheaper starting point: it is free, with no paid plan attached, while Shortwave is freemium — a usable free tier with paid plans above it. Pricing tiers here come from the catalog, not from a promotional page.
Choose Shortwave if you need AI email assistant for Gmail; choose Zero if you need fully open-source (MIT license), self-hostable AI email client. Flocci AI Tools does not rank one above the other — it shows both feature sets side by side and lets the requirement decide.
| Shortwave | Zero | |
|---|---|---|
| Pricing tier | Free tier + paid plans | Free |
| Free to start | Yes | Yes |
| Category | Productivity & Workflow | Productivity & Workflow |
| Type | Email, Scheduling & Tasks | Email, Scheduling & Tasks |
| Listed capabilities |
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| Tags | email, shortwave, assistant, gmail, ai, free | zero email, open source email ai, mail0, self hosted email client, ai inbox |
| Website | shortwave.com | 0.email |
| Full page | Shortwave details → | Zero details → |
| Alternatives | Shortwave alternatives → | Zero alternatives → |