Five9 vs OpenPhone
Compare Five9 and OpenPhone on features, pricing, and buyer fit using the same researched criteria.

Five9
Cloud contact center (CCaaS) — Digital from $119/concurrent seat/mo; Core $159; Plus/Pro/Enterprise quote — 50-seat minimum.
Best for
- • Mid-market and enterprise contact centres that need blended dialer strength
- • Teams comfortable with concurrent-seat economics and 50+ seat minimums
- • Buyers who want CRM/UC adapter choice inside CCaaS
Starting from $119.00/user/mo
No free plan
VS
Our verdict
No universal winner. Choose based on which criteria matter most for your team.
Five9 is better for
- ✓ Power dialer
- ✓ WhatsApp Business
- ✓ CRM / CTI integrations
- ✓ Routing & IVR
Tie
- • Number / country coverage
- • AI features
Choose Five9 if: Mid-market and enterprise contact centres that need blended dialer strength
Choose OpenPhone if: SMB teams that want a modern shared business number with SMS and AI answering

OpenPhone
Modern SMB shared business phone (also branded Quo) with shared numbers, SMS and Sona AI — Starter from $15/user/month annual.
Best for
- • SMB teams that want a modern shared business number with SMS and AI answering
- • Founders and small sales/support teams who need transparent per-seat pricing without a 3-licence floor
- • Teams standardising on HubSpot/Salesforce once they move to Business
Starting from $15.00/user/mo
No free plan
Pros & cons
A balanced look at where each product shines — and where it falls short.
Five9
Strengths in greenPros
- Stronger on power dialer
- Stronger on whatsapp business
- Stronger on crm / cti integrations
- Stronger on routing & ivr
Best for
Mid-market and enterprise contact centres that need blended dialer strength
OpenPhone
Trade-offs in redCons
- Trails on power dialer
- Trails on whatsapp business
- Trails on crm / cti integrations
Best for
SMB teams that want a modern shared business number with SMS and AI answering
Choose if…
Choose Five9 if
- Mid-market and enterprise contact centres that need blended dialer strength
- Teams comfortable with concurrent-seat economics and 50+ seat minimums
- Buyers who want CRM/UC adapter choice inside CCaaS
Choose OpenPhone if
- SMB teams that want a modern shared business number with SMS and AI answering
- Founders and small sales/support teams who need transparent per-seat pricing without a 3-licence floor
- Teams standardising on HubSpot/Salesforce once they move to Business
Still unsure which fits?
Answer a few buyer questions and get a shortlist matched to your priorities.
Best communications softwareSome visit links may be affiliate links — we may earn a commission at no extra cost to you. Comparison outcomes are never based on commission.