Side by side
Claws Mail vs Hiver
Both stand on email clients. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxMacWindows
Claws Mail offers broad mail protocols, encryption support and extensibility without a listed charge. Users who require HTML composition or scheduled sending should note those stated limits.
Visit Claws Mail Free plan API
Hiver combines shared inbox features with support tools such as SLA management and ticket automation. Compare the annual plan limits with your team's needs before moving beyond the free plan.
Visit HiverThe facts
| Claws Mail | Hiver | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Mac, Windows | API |
| Lowest paid plan | Free or on request | Growth: $25 a month |
| Plans published | 1 | 3 |
| Maker | Not published | Not published |
| Website | claws-mail.org | hiverhq.com |
| On email clients | #45 of 142 | #41 of 142 |
Claws Mail: what it does well
- Free GPL-licensed software
- Available on Linux, macOS and Windows
- GnuPG signing and encryption
- Offline access supported
- Calendar available through plugins
What to know first
- Cannot compose or send HTML email
- No scheduled sending
- Desktop application rather than mobile access
- Windows port has 32-bit and 64-bit downloads
Hiver: what it does well
- Free plan includes 2 agent seats.
- Includes SLA management and ticket automation.
- Help center and customer portal are listed.
- API access is available.
- A 7-day trial is offered.
What to know first
- Growth is limited to 2 shared inboxes.
- Growth includes 10 users and 2 custom fields.
- Paid plans are billed annually.
Alternatives to Claws Mail Alternatives to Hiver The whole list

