OpenPhone

Quo, formerly OpenPhone and operated by OpenPhone Technologies, Inc., provides a cloud business phone system delivered through apps for iOS, Android, macOS, Windows and the web. Each user receives a new or ported local or toll-free number, and teams can share numbers and a common inbox so that calls, texts and customer context sit in one place. Core capabilities include shared numbers and inboxes, internal notes, a lightweight contact/CRM layer with custom contact properties, call routing and call flow builders, phone menus and auto attendant, call transfers and group calling, voicemail transcripts, auto call recording, and analytics and reporting.

AI features are marketed under the name Sona, an AI agent that answers inbound calls around the clock, plus AI call summaries and transcripts, AI call tags, AI-suggested message replies and AI contact suggestions. The platform exposes an API, webhooks and an MCP server for use from ChatGPT and Claude, and offers integrations with tools including Salesforce, HubSpot, Pipedrive, Zoho CRM, Slack, Zapier, Make, Jobber, Clio, Gong, Attio, Clay, HighLevel, Fireflies.ai and Google Contacts. Free number porting from other providers is offered with assisted transfer support.

The company positions the product for small and mid-sized businesses and teams across segments such as home services, property management, law firms, healthcare, education, startups, franchises, and sales, support and operations teams. Its website states the service powers conversations for more than 90,000 businesses and cites a 4.7-star average across 3,300+ reviews and a #1 ranking in customer satisfaction on G2. The company holds AICPA SOC certification and lists a San Francisco headquarters address.

Founding story

Founded by married co-founders Mahyar Raissi and Daryna Kulya, originally from Iran and Ukraine respectively, who set out to rebuild the business phone system around how teams actually communicate. The company went through Y Combinator in 2018. Raissi serves as co-founder and CEO.

Business model

Subscription SaaS sold per user per month, with usage-based add-ons. Published plans are Starter at $19, Business at $33 and Scale at $47 per user per month billed monthly, or $15, $23 and $35 per user per month billed annually. Each plan includes one local or toll-free number per user and unlimited calling and messaging to US and Canadian numbers, subject to a fair use policy. Additional numbers cost $5 per month each, international calling and messaging is an add-on at per-minute and per-message rates, and third-party Campaign Registry fees apply ($19.50 one-time review fee plus $1.50–$3 per month). AI calling with Sona uses a credit system (1 call = 100 credits) with 1,000 free automation credits per plan and paid credit tiers from $0 to $199 per month, with per-call overage rates of $0.45–$1.00.

Recurring per-seat subscription revenue across three tiers, supplemented by add-on charges for extra phone numbers, international usage and AI calling credits/overages.

Traction

TechCrunch reported roughly 10 million calls and messages handled monthly and 20,000+ customers at the time of the April 2022 Series B; the company's site now cites more than 90,000 businesses. The Android app shows 500,000+ downloads and a 4.8 rating from about 9,460 reviews, and the website cites 4.7 stars across 3,300+ reviews. The team quadrupled in size during 2021. Customer stories cite a 99% speed-to-lead improvement (Hannon de Palma), 375+ hours saved weekly (Pink's) and 100% of after-hours callers receiving responses (Lucid Bots).

Latest developments

The company has rebranded from OpenPhone to Quo, with quo.com terms, privacy and support email addresses in use and a blog post on the renaming published in October 2025. Recent product additions include the Sona AI agent (now included on all plans, with lead capture over text), an MCP integration for ChatGPT and Claude, AI call tags, inbound phone support on the Scale plan, and a call quality diagnostics panel in the mobile app.