AptaBook vs Quo (formerly OpenPhone) AI agent: pricing & features compared

AptaBook (AI receptionist (chat, voice, email)) vs Quo (formerly OpenPhone) AI agent (Phone system with AI call handling): AptaBook is from $49/mo and Quo (formerly OpenPhone) AI agent is from $0/mo. Both mention plumbers, HVAC companies, electricians, law firms on their websites. Compared on published pricing and keyword-matched features.

By Dor Cohen · Last updated · prices checked on vendor pricing pages

Compare alternatives to Quo (formerly OpenPhone) AI agent Compare alternatives to AptaBook

Which should you pick?

Choose AptaBook if

  • you use Google Calendar (only it mentions this integration)
  • you run dentists, salons (only its site targets these)

Choose Quo (formerly OpenPhone) AI agent if

  • you want the lower entry price ($0/mo vs $49/mo, a free plan with limited usage)
  • you use Jobber, Housecall Pro, Clio, Salesforce (only it mentions these)

Based only on published prices and keyword mentions on each vendor site (unverified); not a quality judgement.

How much do AptaBook and Quo (formerly OpenPhone) AI agent cost at 100, 300 and 600 calls?

AptaBook: $99 at 100, $99 at 300, $149 at 600 calls a month. Quo (formerly OpenPhone) AI agent: $68 at 100, $145.5 at 300, $218 at 600 calls a month. Estimates use list prices only, 3 minutes per call; see methodology.

Estimated monthly cost of AptaBook and Quo (formerly OpenPhone) AI agent at 100, 300, 600 calls100 calls$99$68300 calls$99$145.5600 calls$149$218
AptaBook Quo (formerly OpenPhone) AI agent · same numbers in the table below
Estimated monthly cost at 3 minutes per call (cheapest usable published plan)
Calls / monthAptaBookQuo (formerly OpenPhone) AI agent
100 calls$99/mo (Starter)$68/mo (AI credits tier 3)
300 calls$99/mo (Starter)$145.5/mo (AI credits tier 4)
600 calls$149/mo (Professional)$218/mo (AI credits tier 5)

How do AptaBook and Quo (formerly OpenPhone) AI agent compare side by side?

AptaBook is from $49/mo and Quo (formerly OpenPhone) AI agent is from $0/mo; the rest of the table compares trials and keyword-matched features.

AptaBook vs Quo (formerly OpenPhone) AI agent
 AptaBookQuo (formerly OpenPhone) AI agent
CategoryAI receptionist (chat, voice, email)Phone system with AI call handling
Entry pricefrom $49/mofrom $0/mo
Priced plans published35
Est. at 150 calls × 3 min$99/mo on Starter$100.5/mo on AI credits tier 3
Free trial15-day free trial, no credit card7-day free trial
Calendar booking (keyword-matched)Mentioned on siteMentioned on site
Human handoff (keyword-matched)Mentioned on siteMentioned on site
Integrations (keyword-matched)Google CalendarHubSpotJobberHousecall ProClioHubSpotSalesforceZapier
Trades (keyword-matched)PlumbersHVAC CompaniesElectriciansDentistsSalonsLaw FirmsPlumbersHVAC CompaniesElectriciansLaw Firms
HIPAA mentioned (keyword-matched)YesYes
Test-call scoreNot tested yetNot tested yet
Data checked2026-10-282026-10-22
Vendor siteCompare alternatives to AptaBookCompare alternatives to Quo (formerly OpenPhone) AI agent

How much does AptaBook cost?

AptaBook costs $49 to $149 per month on published plans (checked 2026-10-28).

AptaBook pricing plans
PlanPriceIncludedOverageNotes
Solo$49/month50 conversationsnot publishedNo overage charges: upgrade at the limit; phone, chat and email included; 15-day free trial, no credit card (aptabook.com/pricing, checked 2026-10-28)
Starter$99/month400 conversationsnot publishedNo overage charges: upgrade at the limit
Professional$149/month1500 conversationsnot publishedNo overage charges: upgrade at the limit
Enterprise—/monthnot publishednot publishedCustom

Source: aptabook.com/pricing, checked 2026-10-28.

How much does Quo (formerly OpenPhone) AI agent cost?

Quo (formerly OpenPhone) AI agent costs $0 to $199 per month on published plans (checked 2026-10-22).

Quo (formerly OpenPhone) AI agent pricing plans
PlanPriceIncludedOverageNotes
AI credits tier 1$0/month10 calls$1 each extraplus phone plan from $19/user/mo billed monthly
AI credits tier 2$25/month40 calls$0.75 each extra
AI credits tier 3$49/month100 calls$0.65 each extra
AI credits tier 4$99/month250 calls$0.55 each extra
AI credits tier 5$199/month600 calls$0.45 each extra

Source: quo.com/pricing, checked 2026-10-22.

Feature fields marked “keyword-matched” are mentions found on the vendor's website and haven't been independently verified yet. Prices are hand-copied from vendor pricing pages. How we make money.

Best for your trade: Plumbers · HVAC Companies · Electricians · Law Firms · Medical Offices · Property Managers

Your call volume is different? Estimate both at your volume or get matched.

What do people ask most?

These are the questions we get most, answered from published vendor data.

Is AptaBook or Quo (formerly OpenPhone) AI agent cheaper?

Quo (formerly OpenPhone) AI agent has the lower entry price ($0/mo vs $49/mo). Entry price is the lowest published plan; included usage and overage differ, so check the cost estimate at your call volume.

Which costs less at 150 calls a month?

From published list prices with 150 calls of 3 minutes: AptaBook about $99/mo (Starter), Quo (formerly OpenPhone) AI agent about $100.5/mo (AI credits tier 3). Plans without published usage limits are shown at plan price.

Do AptaBook and Quo (formerly OpenPhone) AI agent offer free trials?

AptaBook: 15-day free trial, no credit card. Quo (formerly OpenPhone) AI agent: 7-day free trial.

Which integrations do both mention?

Both websites mention HubSpot (keyword-matched, unverified).

What else should you compare?

These comparisons share at least one of the two tools.