Trio is an AI phone interpreter that translates live calls with no app. Plans start at $49/month, with a free 10-minute trial. Read features and pricing.
Researched and fact-checked by Bartu Cavusoglu · Updated October 26, 2026
Trio is an AI-powered phone interpreter from Trio Inc. It translates live phone conversations between English and another language, and it is reached by dialing a single number rather than opening an app. The service is aimed at people who need interpretation but cannot justify the contracts and per-minute rates of traditional interpreter companies.
The site positions Trio for small and medium-sized businesses, healthcare providers, community organizations and individuals. Typical examples include restaurants taking orders, real estate agents working with international buyers, and clinics serving multilingual patients. Trio says it costs about 70% less than human interpreters, though it does not offer certified human interpretation.
A user verifies a phone number by SMS, picks a translation language in the dashboard, and then dials the Trio number from that phone. The system recognizes the number and language preference, and the AI interpreter joins the call, usually within 3 to 6 seconds. New callers can also dial without signing up to try it.
During a call, the speaker talks in English and a beep signals the AI to translate. The other person hears the result in their language, and their reply is translated back. Under the hood, Trio describes speech recognition, neural machine translation and text-to-speech, all processed in the cloud, so nothing is installed on the phone.
The core feature is dial-in interpretation that works on smartphones, flip phones, landlines and office systems, with beep prompts for turn-taking. Trio can be added to an existing call through conference calling, and several verified numbers can share one account, each with its own language preference. A dashboard provides call records, quality reports and usage analytics.
Higher plans add customization. Professional includes translation scenarios such as business, banking and real estate, along with custom greetings, voice selection and custom terminology. Enterprise adds SIP trunk and webhook integrations, a HIPAA BAA, a 99.9% SLA, a dedicated manager and 24/7 phone support. Five languages are described as optimized for quality.
Trio is an AI phone interpreter from Trio Inc. Users dial a single number and an AI interpreter translates the conversation in real time. It needs no app or download and works on any phone.
Paid plans start at $49/month for Starter, with Professional at $149/month and Enterprise at $499/month. Overage is $0.49 per minute. Included minutes for the higher plans differ between the homepage and pricing page.
Yes. New users get 10 free minutes with no credit card or email, and callers can try it by dialing the number without signing up. The About page mentions a 30-minute trial, which conflicts with other pages.
The site lists five optimized languages: Mandarin Chinese, Spanish, Portuguese, Korean and Japanese. The Enterprise plan lists 20 languages, and the homepage mentions Cantonese support under Chinese. Other marketing text claims 100+ languages.
Yes. Trio uses the phone's native calling, so it works on smartphones, flip phones, landlines and office systems. The person being called needs nothing installed.
Trio is built mainly for small businesses such as restaurants, real estate agencies, tax preparers and legal offices. Plans start at $49/month with no contract, and staff reportedly need under five minutes of training.
The site describes Trio as HIPAA-ready for healthcare, and the Enterprise plan lists a HIPAA BAA as available. Healthcare buyers should confirm the BAA terms directly with Trio.
Yes. Trio works with mobile, landline, VoIP and office phone systems. It can be connected through speed dial, API integration or SIP trunk, and a call can be bridged using conference calling.