Relay Solo vs Quo (formerly OpenPhone)
Short answer
Quo, formerly OpenPhone, is a general business phone app: a number, calling and texting, shared inboxes and an AI agent, from US$15 per user a month billed yearly (US$19 monthly). It is cheaper than Relay Solo and works for any industry. Relay Solo is built for car sales: lead emails from AutoTrader, Cars.com or your dealer site flow in, and the AI replies to car shoppers and books test drives. If you just need a clean second line, Quo is a good choice.
Side by side
| Relay Solo | Quo (formerly OpenPhone) | |
|---|---|---|
| Price (USD) | US$49 or US$89 a month, plus a one-time US$29 registration | $15, $23 or $35 per user a month billed yearly; $19, $33 or $47 billed monthly |
| Texting registration | US$29 one time | $19.50 one time plus $1.50 to $3 a month (carrier registry fees) |
| Calling and texting | Pay as you go from an included balance | Included to US and Canadian numbers, subject to a fair usage policy |
| Number | One new local number | One new or ported number per user |
| AI | Replies to car leads in your name and books appointments | Sona AI agent, 1,000 automation credits included |
| Car lead email intake | Yes, including ADF/XML | No |
| Built for | Car salespeople | Any small business or team |
Where Quo is the better pick
- You want a clean business line at a lower price, for any kind of work.
- You want to port the number you already have. Relay gives you a new number.
- You work as a team and want shared inboxes.
Where Relay Solo is the better pick
- Your leads come from AutoTrader, Cars.com, CarGurus or a dealer site as emails or ADF/XML, and you want them answered automatically.
- You want an AI that talks like a car salesperson, hands price and trade questions to you, and books test drives.
Common questions
Is Quo the same as OpenPhone?
Yes. OpenPhone renamed itself Quo. Its pricing page lists Starter, Business and Scale plans per user.
Is Quo cheaper than Relay Solo?
Yes, Quo Starter is $15 a user a month billed yearly or $19 monthly, against Relay Solo at US$49. Relay includes car-lead intake and an AI built for car sales conversations.
Sources
- Quo pricing (quo.com/pricing) Read October 12, 2026.
- Relay Solo US pricing
Selling cars in Canada? Relay Solo for Canada has Canadian numbers and prices in CAD.