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Audio Diary 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. Audio Diary starts at $10.99, AudioPen at $99. Both have a free tier.

Side by side

FactAudio DiaryAudioPen
CategoryMental Health & Therapy ChatbotsNote-taking & Second Brain
Pricing modelFreemiumFreemium
Starts at$10.99 month$99 month
Public APINoNo
PlatformsWeb, macOS, iOS, AndroidWeb, macOS, Windows, iOS, Android, Chrome Ext
CompanySoliloquy Apps LimitedNicheless Inc.
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

Audio Diary

A well-executed voice journal whose strongest selling point is not the AI but the exit door: full export of audio, transcripts, markdown and PDF is available even on the free tier. The catch is that no price appears anywhere on the website, so you only learn the cost at the in-app paywall.

Pros

  • Comprehensive export on both free and paid accounts
  • Recordings encrypted in transit and at rest, with a stated no-training agreement
  • Genuine cross-platform coverage including macOS and the browser
  • Free tier is usable for evaluating the analysis quality

Cons

  • No pricing published on the website; figures only appear in the app store listing
  • Free tier's recording time is roughly a tenth of the paid allowance
  • Analysis depends on a third-party model provider, with no self-hosted option

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 Audio Diary if you need

  • People who reflect more easily out loud than in writing
  • Anyone who wants entries summarised and themed rather than just stored
  • Users who care about being able to take their journal with them

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

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