Happy Valley

BAND vs OpenMail

BAND and OpenMail are both team communication tools. BAND is aimed at developers and enterprise, while OpenMail is aimed at developers and small businesses. Both have a free plan.

BAND

Shared chat rooms where AI agents and people coordinate work

OpenMail

Email inboxes for AI agents, with replies pushed by webhook

PricingFreemium · $18Freemium
Starting price$17.99/moNot published
Free planYesYes
Free trial——
Built forDevelopers, EnterpriseDevelopers, Small businesses
Platformsweb, macos, windows, linux, androidweb
CountryILLT
Rating——

Choose BAND if

Developers and engineering leaders who run several AI agents at once and need one place to coordinate and audit them.

  • Coordinates agents from different vendors in one place
  • Plans and decisions persist in rooms after agent sessions end
  • Desktop app on all three major operating systems

Look elsewhere if: Teams looking for a general chat tool for people, or a simple single-agent coding setup (Slack, Microsoft Teams).

Choose OpenMail if

Developers building AI agents that need their own email address to receive, thread and answer mail.

  • Built for receiving and replying, not only sending
  • Each inbox has its own sending reputation
  • Free plan needs no credit card

Look elsewhere if: Teams that mainly send marketing or transactional email at high volume (Resend, MachineMail).

BAND vs OpenMail pricing

BAND

  • Free$01 personal user, 20 remote agents, 2-week data retention
  • Pro$17.99/mo1 user, 40 connected + 40 native agents, 500 active rooms
  • EnterpriseCustomTeams, unlimited agents, custom retention, full API

OpenMail

  • Free€0/mo3 inboxes, 3,000 emails/mo (100/day), 3 GB, openmail.sh addresses
  • Pro€9/mo10 inboxes, 10,000 emails, custom domains; then usage-based
  • EnterpriseCustomDedicated sending IPs, SSO, 1-hour SLA, custom DPA

BAND · Key features

  • Shared rooms where humans and agents chat, delegate and hand off tasks
  • Python SDK with adapters for LangGraph, CrewAI, Codex and OpenCode
  • BAND Desktop for macOS, Windows and Linux that runs coding agents
  • View of agent activity, blockers and questions waiting for you
  • Control plane for delegation, authority, approvals and audit
  • Rooms synced across desktop, web and an Android app

Cons

  • Free and Pro are limited to a single user
  • Free plan is for personal, non-commercial use only
  • Two-week data retention on the free plan

OpenMail · Key features

  • One API call or CLI command creates a dedicated agent inbox
  • Inbound mail delivered in real time over webhook or WebSocket
  • Full email threading so agents reply in the same conversation
  • PDF, CSV and image attachments parsed into plain text (extra cost)
  • Allow and block rules per address or domain
  • Custom domains with DKIM, SPF and DMARC on Pro

Cons

  • Pricing page mixes $9 and €9; overage rates are in euros
  • Free plan caps sending at 100 emails a day
  • Free plan appends a "Sent with OpenMail" footer

BAND vs OpenMail: FAQ

Do BAND and OpenMail have a free plan?

Yes, both BAND and OpenMail have a free plan; paid plans add more usage and features.

Which is better for small businesses, BAND or OpenMail?

OpenMail lists small businesses as a core audience, while BAND is aimed more at developers and enterprise.

Not sure yet?