Slack vs Vonage
Compare Slack and Vonage on features, pricing, and buyer fit using the same researched criteria.

Slack
Channel-based team messaging platform — Free $0, Pro $7.25/user/month annual, Business+ $15, Enterprise+ contact sales; huddles for light video, not a phone system.
Best for
- • Knowledge-worker teams that need channel-based team messaging as the primary collaboration hub
- • Organisations that want a freemium chat workspace with a deep app ecosystem
- • Salesforce-centric companies aligning chat with CRM workflows
Starting from $7.25/user/mo
Free plan available
VS
Our verdict
No universal winner. Choose based on which criteria matter most for your team.
Slack is better for
- ✓ CRM / CTI integrations
- ✓ AI features
Vonage is better for
- ✓ Number / country coverage
- ✓ Power dialer
- ✓ Routing & IVR
Tie
- • WhatsApp Business
- • Analytics
Choose Slack if: Knowledge-worker teams that need channel-based team messaging as the primary collaboration hub
Choose Vonage if: SMB and mid-market teams wanting published per-line VoIP with SMS

Vonage
SMB/mid VoIP business phone (VBC) — Mobile from $13.99/line/mo on 12-month promo; Premium/Advanced higher.
Best for
- • SMB and mid-market teams wanting published per-line VoIP with SMS
- • Buyers who may grow into Premium video meetings and CRM connectors
- • US/Canada-centric businesses that value Ericsson-backed Vonage branding
Starting from $13.99/user/mo
No free plan
Slack vs Vonage pricing
Slack researched starting price from $7.25/mo; a free plan is researched. Vonage researched starting price from $13.99/mo. Affiliate economics excluded.
Slack
From $7.25/user/mo
Vonage
From $13.99/user/mo
Slack
Starting from $7.25/user/mo
No free trial evidenced
- Free$0.00/user/mo
- $0 — limited message/file history and core channel messaging. Primary evaluation path (no published free trial on paid plans).
- ProPopular$7.25/user/mo
- $7.25/user/month billed annually ($8.75 monthly). Unlimited message history, huddles, canvas and core productivity features for growing teams.
- Business+$15.00/user/mo
- $15/user/month billed annually ($18 monthly). Stronger admin, compliance and AI assistance versus Pro.
- Enterprise+Custom
- Contact sales for Enterprise+ security, compliance and large-org controls.
Vonage
Starting from $13.99/user/mo
No free trial evidenced
- Mobile$13.99/user/mo
- $13.99/line/month on 12-month promo ($19.99 monthly). Unlimited US/CA calling & SMS, mobile/desktop apps, team messaging baseline.
- PremiumPopular$20.99/user/mo
- $20.99/line/month annual promo ($29.99 monthly). Multi-level auto attendant, CRM integrations, unlimited video meetings (up to 100), IP desk phones.
- Advanced$27.99/user/mo
- $27.99/line/month annual promo ($39.99 monthly). On-demand call recording, call groups, visual voicemail and deeper team calling features.
Estimate your team cost
Monthly estimate from verified per-seat list pricing. Confirm on the vendor site before purchasing.
Slack
$108.75/mo
Vonage
$209.85/mo
+$101.10/mo — Vonage 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.
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.