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Audio To Text Converter vs Otter.ai

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. Audio To Text Converter starts at $4.90, Otter.ai at $8.33. Both have a free tier. Only Otter.ai ships a public API.

Audio To Text ConverterBrowser transcription for 15 audio formats with speaker labels and SRT/VTT export, sold as prepaid minute packs.Otter.aiMeeting transcription with per-plan minute and length caps

Side by side

FactAudio To Text ConverterOtter.ai
CategorySpeech-to-Text & TranscriptionMeeting Assistants
Pricing modelFreemiumFreemium
Starts at$4.90 one_time$8.33 month
Public APINoYes
PlatformsWebWeb, iOS, Android, Chrome Ext, API
Company—Otter.ai
Launched—2016
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

Audio To Text Converter

Honest prepaid transcription with no subscription trap - useful if you have a stack of recordings once a quarter rather than a weekly meeting habit. The 90-day expiry on packs is the real cost, and the total absence of any named operator makes it a poor fit for anything confidential.

Pros

  • Fifteen input audio formats accepted, including OPUS, AMR and WMA
  • Six export formats including SRT, VTT and CSV, not just plain text
  • Paid packs add speaker identification, AI translation and bulk uploads
  • Free tier of 30 minutes needs no purchase to evaluate quality

Cons

  • Credits expire after 90 days, so unused minutes are simply lost
  • No named company, registered address or country anywhere on the site
  • Free tier is throttled to three files a day on a lower-quality model
  • No API, so nothing here can be automated

Otter.ai

Still the default for English-language meeting notes, and the free tier is unusually usable. What determines the right plan is not features but the per-conversation ceiling: 30 minutes on Basic and 90 on Pro means a standard hour-long review truncates on the free tier and a workshop truncates on Pro. Pick the tier by your longest recurring meeting.

Pros

  • 300 free minutes a month makes evaluation real rather than token
  • Annual Pro at $8.33 is roughly half the month-to-month rate
  • An MCP server is exposed from the free tier, so assistants can query transcripts without the paid API
  • Business removes the minute cap entirely rather than raising it

Cons

  • The API and webhooks require Enterprise, which is quote-only
  • Per-conversation ceilings (30 min free, 90 min Pro) cut recordings mid-meeting
  • Basic allows three file imports in total, not per month
  • Month-to-month pricing is roughly double annual at both self-serve tiers

Which one fits

Choose Audio To Text Converter if you need

  • One-off batches of interviews or lectures
  • People who refuse monthly subscriptions for occasional work
  • Subtitle files where SRT or VTT export is the whole job

Choose Otter.ai if you need

  • Teams that live in Zoom, Meet or Teams and want notes without a note-taker
  • Accessibility use, where live captions matter as much as the transcript
  • Recruiters and researchers who need searchable interview records across a workspace

More comparisons

All Otter.ai alternatives →Browse all Speech-to-Text & Transcription →