Pick Quo (formerly OpenPhone) if
small US teams already buying a business SMS/voice seat who will add Sona packs.
Read the Quo (formerly OpenPhone) pageQuo (formerly OpenPhone) vs Vapi
Our take
Pick Quo (formerly OpenPhone) if you're on a small US team already buying a business SMS/voice seat who will add Sona packs. Pick Vapi if you're a builder who want a voice agent with a Dashboard plus an API, and will pay hosting + provider pass-through. Skip Quo (formerly OpenPhone) if you're on a team that want a $0.06 all-in voice API (Bolna) without a per-user phone seat. Skip Vapi if you're on a team that want
Best for
Quo (formerly OpenPhone) A phone inbox with an AI receptionist on a per-user card
Vapi A phone or web voice agent you can publish
Free plan
Quo (formerly OpenPhone) No free plan
Vapi No free plan
Lowest paid
Quo (formerly OpenPhone) Starter $19
Vapi No Success Package $5
Next step up
Quo (formerly OpenPhone) Sona packs $25
Vapi Pro $999/mo
Watch out
Quo (formerly OpenPhone) A phone seat plus an AI pack
Vapi Hosting is $0.05/min plus providers
Last checked
Quo (formerly OpenPhone) 2026-10-28 · quo.com/pricing
Vapi 2026-10-22 · vapi.ai/pricing
Which one, then?
Pick Vapi if
builders who want a voice agent with a Dashboard plus an API, and will pay hosting + provider pass-through.
Read the Vapi page