Best Email Signature Management · head-to-head
Opensense vs Exclaimer
A sourced, side-by-side comparison for email signature management. Exclaimer has the lower entry price. Every figure links to the vendor's own page and the date we captured it.
At a glance
- Price: Opensense $1/mo vs Exclaimer $0.9/mo — Exclaimer is cheaper to start.
- Free tier: Opensense No; Exclaimer No.
- HIPAA: Opensense No; Exclaimer Yes.
Side by side
| Opensense | Exclaimer | |
|---|---|---|
| Entry price | $1/mo (Signature) | $0.9/mo (Starter) |
| Free tier | No | No |
| HIPAA (BAA) | No | Yes |
| SOC 2 | Yes | Yes |
| GDPR | Yes | Yes |
| Best for | mid-market and enterprise revenue teams combining signature marketing with sales tracking | mid-market Microsoft 365 teams |
Sources — Opensense: opensense.com (verified 2026-06-15). Exclaimer: exclaimer.com (verified 2026-06-15).
Key features
Opensense: Deep CRM + sales engagement integrations (Salesforce, Outreach, Salesloft); Email tracking plans for revenue teams alongside signature management; SOC 2 Type II + GDPR certified; Microsoft GCC High support (+$2/user/month)
Exclaimer: Server-side signature injection (no client install); Campaign scheduling and targeting rules; Social media feeds in signatures; SOC 2 Type II + HIPAA + ISO 27001 certified