Opterius Mail
6.4#109 in email clientsFree planFree planWebSelf-hosted
VisitOpterius Mail vs Spike
What both publish
| Fact | Opterius Mail | Spike |
|---|---|---|
| App coverage | web | all |
| Free plan | Yes | Yes |
| Security | The product page says HTML email is rendered in a sandboxed iframe and IMAP credentials are kept in an encrypted session rather than written to the database. | Spike says message data is encrypted with AES-256 using a per-message private key and that it has periodic external security audits. |
Opterius Mail plans
- FreeFree
- Opterius MailFree
Spike plans
- StarterFree
- Team$4 a month
- Business$8 a month
- FreeFree
- Pro$6 a month
- Ultimate$12 a month
Pick Opterius Mail if…
You want what its maker publishes above — check its page for the details.
Pick Spike if…
Spike may suit people or teams looking to bring email, scheduled messages, and calendar tools together across desktop and mobile platforms. Its plans cover different email, storage, team, and file-upload needs.