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AudioBriefly vs AudioPen

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. AudioPen publishes a starting price ($99); AudioBriefly does not. Both have a free tier.

AudioBrieflyForward a WhatsApp voice note and get a transcript and summary back in the same chatAudioPenTurns rambling voice notes into clean written text in a style you choose

Side by side

FactAudioBrieflyAudioPen
CategorySpeech-to-Text & TranscriptionNote-taking & Second Brain
Pricing modelFreemiumFreemium
Starts at—$99 month
Public APINoNo
PlatformsWebWeb, macOS, Windows, iOS, Android, Chrome Ext
CompanyBandstand Software di Alessandro MarrellaNicheless Inc.
Launched2023—
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

AudioBriefly

The good idea here is the delivery route: no app to install, no file to upload — you forward the voice note inside WhatsApp and the transcript comes back where the message was. Minutes-based plans are easy to reason about, and the free tier is enough to test the transcription quality. The weakness is transparency: prices only appear inside Paddle at checkout, and there is no API, so this stays a personal-use tool.

Pros

  • Works inside WhatsApp with no app install or file upload step
  • Web app accepts uploaded audio and MP4 video for non-WhatsApp material
  • Plans metered in plain minutes per month rather than opaque credits
  • Free tier of ten minutes a month needs no card, and the interface covers English, Italian and Spanish

Cons

  • No price is visible anywhere on the site — Paddle renders it only at checkout
  • No API and no bulk upload, so it does not scale past personal use
  • Free tier caps WhatsApp usage at three voice messages a month
  • Run by a single Italian sole trader, with the support surface that implies

AudioPen

The narrow focus is the point: AudioPen does one job, turning messy speech into text someone else can read, and does it across every device on a single account. The catch is the pass-based pricing, which asks for a year up front instead of letting you try a month.

Pros

  • Rewrite intensity is adjustable rather than take-it-or-leave-it
  • Custom writing styles and multi-note merging on paid passes
  • One licence spans web, mobile, Mac, Windows and Chrome
  • Zapier and webhook hooks for pushing notes into other tools

Cons

  • No monthly plan; the entry commitment is a multi-month pass
  • No documented public API, only Zapier and webhooks
  • Run by a very small operation, with little published about the company

Which one fits

Choose AudioBriefly if you need

  • People who receive long WhatsApp voice notes and would rather read them
  • Quick summaries of a recorded call or lecture without opening a desktop tool
  • Italian and Spanish speakers, since the interface is localised for both

Choose AudioPen if you need

  • People who draft by talking and want usable prose, not a transcript
  • Writers and founders capturing ideas away from a keyboard
  • Anyone switching constantly between phone, laptop and browser

More comparisons

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