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
Evidence & transparency
Sources and research process behind this comparison.
Sources
5
Criteria
9
Screenshots
8
Sources consulted
| Title | Product | Type |
|---|---|---|
| Five9 — Official Site | Five9 | official-product-page |
| Five9 Pricing | Five9 | official-pricing-page |
| OpenPhone — Official Site | OpenPhone | official-product-page |
| OpenPhone Pricing | OpenPhone | official-pricing-page |
| Quo (OpenPhone) Pricing | OpenPhone | official-product-page |
Methodology steps
- 1Collect first-party product and pricing evidence
- 2Map both products to the same category criteria
- 3Record criterion outcomes with confidence and sources
- 4Publish only when editorial gates allow indexing
Methodology version 1.0.0.
Affiliate relationships never change comparison outcomes. We evaluate both products on the same criteria and allow ties when evidence does not support a universal winner.
Read full methodology →Some visit links may be affiliate links — we may earn a commission at no extra cost to you. Comparison outcomes are never based on commission.