Coherence
8.0#2 in email collaboration softwareFrom $12 a monthFree planAndroidWebAPImacOS
VisitCoherence vs MailStack
What both publish
| Fact | Coherence | MailStack |
|---|---|---|
| Intended users | Coherence says its workspace is for businesses managing relationships across customers, partners, vendors, and team members, including service jobs, client projects, and consulting engagements. | MailStack is designed for teams needing self-hosted business inboxes with per-user shared mailbox authorization and controlled receive-only email. |
| Security | Coherence says data is encrypted with AES-256 at rest and TLS 1.2 or higher in transit, and that it is hosted on SOC 2 certified infrastructure. | Listed controls include Argon2 password hashing, login throttling, CSRF protection, secure production cookies, and least-privilege database access. |
| Support | The pricing page lists community support, email support, and priority support, and says the Team plan requires a minimum of 10 paid seats. | Vib Tools lists product support by email and provides a Bangladesh head office address in Kurigram, Rangpur. |
Coherence plans
- FreeFree
- Pro$29 a month
- Starter$12 a month
- Team$79 a month
MailStack plans
- Open sourceFree
Pick Coherence if…
Coherence suits businesses managing relationships with customers, partners, vendors, and team members, including service jobs, client projects, and consulting engagements. Shared Inbox is aimed at teams that need shared ownership and organized handling of incoming conversations.
Pick MailStack if…
MailStack is intended for teams that need a self-hosted business inbox with shared mailboxes and per-user authorization. It suits administrators able to operate the specified single-node Ubuntu VPS deployment.