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Paid plans start at $15/mo.
Quo, formerly OpenPhone, starts at $15 per user per month with annual billing, or $19 month to month. Business is $23 annually or $33 monthly; Scale is $35 or $47. There is no free plan, but the pricing details list a 7-day trial. The headline rates do not cover every use case: Sona credits, extra numbers, campaign registration and automated SMS can add charges.
01Every plan, line by line
| Plan | Billed annually | Billed monthly | Built for |
|---|---|---|---|
| Starter | $15 | $19 | Individuals and small teams |
| Business | $23 | $33 | Teams needing call handling and automation |
| Scale | $35 | $47 | Teams needing advanced automation and support |
Add-ons and overages
- Sona credits: Tier 1 $0/month for 1,000 credits; Tier 2 $25/month for 4,000; Tier 3 $49/month for 10,000; Tier 4 $99/month for 25,000; Tier 5 $199/month for 60,000.
- Sona overage rates per call: Tier 1 $1.00; Tier 2 $0.75; Tier 3 $0.65; Tier 4 $0.55; Tier 5 $0.45.
- Additional phone numbers: $5/month each.
- Campaign Registry review and setup: $19.50 one-time; messaging fee: $1.50–$3/month, based on use case.
- Automated SMS through API, Zapier, or Make: 1¢ per segment.
- International calling and messaging rates are not published on the vendor's site.
What a team pays per month
| Plan | 1 seat | 5 seats | 10 seats | 25 seats |
|---|---|---|---|---|
| Starter (max. 10) | $15 | $75 | $150 | — |
| Business | $23 | $115 | $230 | $575 |
| Scale | $35 | $175 | $350 | $875 |
02What the plan grid doesn't tell you
Sona credits and overages
Plans list 1,000 automation credits (10 calls). Additional tiers cost $25–$199/month; listed overage rates range from $0.45 to $1 per call.
Extra phone numbers
Each additional phone number costs $5/month.
Campaign registration
Campaign Registry review and setup costs $19.50 once, plus a $1.50–$3 monthly messaging fee based on use case.
Automated SMS
SMS sent through the API, Zapier or Make costs 1¢ per segment.
03Which plan should you buy?
| If you are… | Get | Why |
|---|---|---|
| Individuals and small teams | Starter | Costs $15/user/month annually or $19 monthly. Shared numbers cap at 10 paid users, with up to 10 open tasks. |
| Teams needing call handling | Business | Adds unlimited paid users on shared numbers, plus AI call summaries and transcripts. |
| Teams needing more support | Scale | Adds AI call tags and inbound phone support; shared numbers allow unlimited paid users. |
04Is OpenPhone worth the money?
OpenPhone is worth considering if your team wants calls and texts on shared numbers, with call handling and summaries available as you move up the plans. Starter’s 10-user shared-number cap may matter if the team grows; Business and Scale remove that cap. Compare the per-user price with your seat count, then account for Sona credits, extra numbers and messaging fees. International rates are not published on the vendor's site.
OpenPhone pricing FAQ
How much does Quo cost?
Quo, formerly OpenPhone, lists three plans. Starter costs $15 per user per month with annual billing or $19 monthly; Business is $23 annually or $33 monthly; Scale is $35 annually or $47 monthly. Annual prices are billed annually.
How much does it cost to call a mobile phone?
The plan details list unlimited US and Canadian calling and messaging, with an asterisk, on all three plans. They do not explain the asterisk or publish a separate mobile-call rate. International calling and messaging rates are also not published on the vendor's site.
Is the OpenPhone app free?
The pricing details list no free plan. They do list a 7-day free trial, but do not specify whether every feature or plan is available during the trial. Afterward, listed plan prices start at $15 per user per month with annual billing.
What is the typical cost of a VoIP phone per month?
For OpenPhone, listed pricing runs from $15 to $35 per user per month with annual billing, or $19 to $47 with monthly billing. Those are per-user plan prices, not a category-wide average; add-ons and extra numbers can raise the bill.