Captio AI vs Otter.ai

Tap record in the mobile app or on the web and the conversation is transcribed in real time from the built-in mic, a Bluetooth mic or AirPods. Real-time transcription needs internet.

Sources: Record a conversation (Otter Help Center), Getting the most out of Otter.ai: Best Practices for in-p… (Otter Help Center), Otter.ai pricing page, Google Play listing

For in-person recordings and imports, speakers are identified only after the recording stops (Speaker 1, or a name once you tag them, which teaches Otter their voice). In Zoom meetings, Notetaker tags speakers live from participant names.

Sources: Speaker Identification Overview (Otter Help Center), Google Play listing, Otter.ai pricing page

Otter records from one device and recommends placing the mic in the middle of all speakers. A recording started inside an Otter group can be followed live by its members; other phones do not join as microphones.

Sources: Getting the most out of Otter.ai: Best Practices for in-p… (Otter Help Center), Google Play listing

Otter's help centre and pricing page list English, Spanish, French, German, Japanese and Chinese (German and Chinese in beta); French can be mixed with English. The App Store says four languages and Google Play three. Menus stay in English.

Sources: Supported languages (Otter Help Center), Transcribe conversations in English, Spanish, French, Ger… (Otter Help Center), Otter.ai pricing page, Apple App Store listing, Google Play listing

Otter does not translate while you talk. Its help centre says you can ask Otter Chat to translate a conversation into other languages.

Sources: Supported languages (Otter Help Center), Transcribe conversations in English, Spanish, French, Ger… (Otter Help Center)

Without internet the live transcript pauses but the audio keeps recording; the transcript is made once a connection is back.

Sources: Record with Otter offline or without an internet connection (Otter Help Center), Record a conversation (Otter Help Center)

No caption text size, colour or contrast settings are described on Otter's pricing page or the help articles checked, and its App Store listing names no accessibility features.

Sources: Otter.ai pricing page, Apple App Store listing

Transcripts and audio are saved to your account. On the free Basic plan only the 25 most recent conversations show (older ones are archived, not deleted); paid plans keep unlimited history.

Sources: Conversation, import, and app limits on the Basic free plan (Otter Help Center), Otter.ai pricing page

Basic exports text only as TXT (the pricing table also lists MP3 audio). Pro and higher export TXT, PDF, DOCX and SRT caption files, and Business adds bulk export.

Sources: Export conversations (Otter Help Center), Otter.ai pricing page

Import audio and video files up to 5 GB on web or mobile. Basic allows 3 imports per account in total, Pro 10 a month, Business unlimited.

Sources: Import an audio or video file (Otter Help Center), Conversation, import, and app limits on the Basic free plan (Otter Help Center), Otter.ai pricing page

Automatic summaries, action items and outlines for recordings and imports, a summary email for synced calendar meetings, and AI Chat (limited on Basic).

Sources: Otter.ai pricing page, Import an audio or video file (Otter Help Center), Meeting Summary Overview (Otter Help Center)

Custom vocabulary for names and jargon: 5 words or phrases on Basic, 100 names and 100 other terms on Pro, more on Business.

Sources: Manage vocabulary (Otter Help Center), Otter.ai pricing page

Otter Notetaker joins Zoom, Google Meet and Teams meetings and transcribes them live, on every plan. Zoom hosts can also give every participant a live transcript link (Live Notes).

Sources: Otter Notetaker Overview (Otter Help Center), Using Otter Live Notes (Otter Help Center), Otter Chrome extension (Otter Help Center), Otter.ai pricing page

Audio is processed and stored in the cloud (AWS, US West). The privacy policy says Otter trains its own AI on de-identified audio and on transcripts, and shares data with data-labeling providers. AI Chat sends your question and transcript to third-party AI providers.

Sources: Otter.ai privacy policy, Data security and privacy policies (Otter Help Center), Otter AI Chat FAQs (Otter Help Center), Set a custom Data Retention policy (Otter Help Center), Apple App Store listing

You sign in to an Otter account (name, email, phone number, password) to record. Google Play lists account creation as a requirement.

Sources: Student & Teacher discount program for the Pro plan (Otter Help Center), Otter.ai privacy policy, Google Play listing

Basic is free: 300 transcription minutes a month, up to 30 minutes per conversation, 3 file imports in total, the 25 most recent conversations, 5 vocabulary terms and TXT export.

Sources: Conversation, import, and app limits on the Basic free plan (Otter Help Center), Otter.ai pricing page, Export conversations (Otter Help Center)

Pro on the US App Store, October 2026 (otter.ai shows US$8.33 a month billed yearly), with 1,200 minutes and up to 90 minutes per meeting. Business costs US$30 a month or US$239.99 a year, with a free trial that needs a card; students and teachers get 20% off Pro.

Sources: Otter.ai pricing page, Apple App Store listing, About your Otter Business free trial (Otter Help Center), Student & Teacher discount program for the Pro plan (Otter Help Center)