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
Five9 vs OpenPhone pricing
Five9 researched starting price from $119/mo. OpenPhone researched starting price from $15/mo. Affiliate economics excluded.
Five9
From $119.00/user/mo
OpenPhone
From $15.00/user/mo
Five9
Starting from $119.00/user/mo
No free trial evidenced
- Digital$119.00/user/mo
- $119/concurrent seat/month — digital channels only (chat, email, SMS/MMS, social). 50-seat minimum.
- CorePopular$159.00/user/mo
- $159/concurrent seat/month — all channels with AI essentials, dialer, recording, CRM/UC adapter choice. 50-seat minimum.
- PlusCustom
- All channels with advanced AI — contact sales; no public seat dollars (2026-08-17).
- ProCustom
- All channels with AI essentials + WEM — contact sales.
- EnterpriseCustom
- All channels with advanced AI + full WEM — contact sales.
OpenPhone
Starting from $15.00/user/mo
Free trial available
- Starter$15.00/user/mo
- $15/user/month billed annually ($19 monthly). Shared business number, unlimited US/CA calling & SMS (fair use), voicemail transcripts, Sona AI baseline.
- BusinessPopular$23.00/user/mo
- $23/user/month annual ($33 monthly). Adds phone menus, automatic recording, AI summaries/transcripts on all calls, and deeper HubSpot/Salesforce CRM.
- Scale$35.00/user/mo
- $35/user/month annual ($47 monthly). AI call tags, dedicated onboarding and phone support for larger SMB rollouts.
Estimate your team cost
Monthly estimate from verified per-seat list pricing. Confirm on the vendor site before purchasing.
Five9
$1,785.00/mo
OpenPhone
$225.00/mo
+$1,560.00/mo — Five9 costs more
Verified monthly unit prices · Aug 17, 2026
Prices in USD
Shown per user / month from verified list pricing.
Plans can change
Confirm live vendor rates before purchasing.
Add-ons may apply
Calling, SMS, or usage fees can add cost.
Independence
Affiliate status never changes pricing outcomes.
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