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.
uinbx
- 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
Missive
- 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: uinbxTeam 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: MissiveTeam 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: uinbxTeam 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: MissiveTry the free alternative to Missive
Free plan — 2 users, 2 accounts, your own domain. No credit card, no trial expiry.