Tool Comparison

uinbx vs Missive — shared inbox with a free plan vs collaborative drafting

Missive is built for teams that co-write replies in real time. uinbx is built for teams that need a shared inbox free — with DMARC monitoring and domain management included. Here's the honest comparison.

Best free option

uinbx

$0 to start
Free plan · Growth $29/mo flat (not per-seat)
  • Free plan — 2 users, no trial expiry
  • Flat team pricing, not per-seat
  • DMARC monitoring built in
  • Domain management included
  • Thread assignment & reply tracking
  • Works with any IMAP mailbox
  • No real-time collaborative drafting
  • No internal chat on threads
Best for co-writing replies

Missive

$14 /user/mo
Limited free plan (1 shared account only)
  • Real-time collaborative reply drafting
  • Internal comments on threads
  • Good mobile apps (iOS/Android)
  • Rules & integrations on paid plans
  • Free plan limited to 1 shared account
  • Per-seat pricing on paid plans
  • No DMARC monitoring
  • No domain management

Full feature comparison

Feature uinbx Missive (Productive $18/user/mo)
Free plan✓ 2 users, no expiry✓ 1 shared account only
Starting paid price$29/mo flat (10 users)$14/user/mo
Shared inbox✓ Yes✓ Yes
Thread assignment✓ Yes✓ Yes
Real-time co-drafting✗ No✓ Yes
Internal thread comments✗ No✓ Yes
Mobile apps✗ Web only✓ iOS & Android
DMARC monitoring✓ Built in✗ Not included
Domain management✓ Built in✗ Not included
Any IMAP mailbox✓ Yes✓ Yes
Per-seat pricing✗ Flat plans✓ Per user

Which one should you choose?

Team on a budget, needs free plan

uinbx's free plan covers 2 users with no expiry. Missive's free plan is limited to 1 shared account with significant restrictions. If cost is a concern, uinbx is the better free option.

Recommend: uinbx

Team that frequently co-writes replies

If your team regularly drafts replies together — editing the same message simultaneously, leaving inline notes — Missive's Google Docs-style collaboration is purpose-built for this. uinbx doesn't have this.

Recommend: Missive

Team managing their own domain & email auth

uinbx bundles domain management, DNS setup, and DMARC monitoring. If you run your own domain and care about email deliverability, uinbx replaces multiple separate tools.

Recommend: uinbx

Team needing mobile-first access

Missive has polished iOS and Android apps. uinbx is currently web-only. If your team responds to email primarily from phones, Missive's mobile experience is meaningfully better.

Recommend: Missive

Try the free alternative to Missive

Free plan — 2 users, 2 accounts, your own domain. No credit card, no trial expiry.

Start free → See all plans