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Remote Work · head to head

Otter.ai vs Sonix

Otter.ai logo

Otter.ai

Remote Work

Transcription and meeting notes powered by AI

From
Free
Rated
-
Full reviewWebsite
Sonix logo

Sonix

Translation

Automated transcription and translation with per-hour pricing published up front

From
$10/month
Rated
-
Full reviewWebsite

The short version

  • Only Otter.ai has a free tier, so it costs nothing to try first.
  • Each has a real cost: Otter.ai two separate limits apply at once, a monthly minute allowance and a per conversation cap, so a long meeting can be cut short with allowance remaining; Sonix monthly hour allowances are small relative to the subscription price: the $25 Core plan includes five hours, which at the published $10 overage rate means the subscription is only worth buying for storage and features rather than for the hours.
  • They diverge on capability: Otter.ai covers Automatic transcription, Sonix covers Automated transcription.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Otter.ai and Sonix actually diverge.

Attributes where Otter.ai and Sonix differ
AttributeOtter.aiSonix
Starting priceFree$10/month
Pricing modelfreemiumPer hour of transcription
Free tierYesNo
PlatformsWeb, Ios, Android, MacWeb, API
CategoryRemote WorkTranslation
Founded2016Unknown

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Otter.ai

  • Automatic transcription
  • Real-time transcription
  • Speaker identification
  • Searchable transcripts
  • Highlights and summaries
  • Sharing
  • Mobile apps
  • Zoom

Only in Sonix

  • Automated transcription
  • Translation
  • Synchronised editor
  • Subtitle export
  • Custom dictionary
  • Search across media
  • Pay-as-you-go option
  • Enterprise compliance

What people use each for

The jobs each tool is most often brought in to do.

Otter.ai

  • Meeting transcription and recordingnot Sonix
  • Live transcription for accessibilitynot Sonix
  • Multi-language meeting supportnot Sonix

Sonix

  • A journalist transcribing interviews in several languages who needs the transcript searchable and quotable within minutes rather than accurate to a contractnot Otter.ai
  • A qualitative research team coding focus group transcripts, where speaker separation and an editable transcript matter more than a certified accuracy figurenot Otter.ai
  • A podcast producer generating subtitle files and show notes from each episode without adding a human transcription suppliernot Otter.ai
  • A small documentary team subtitling foreign-language footage where transcription and translation in one tool avoids a second vendornot Otter.ai

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Otter.ai

  • Two separate limits apply at once, a monthly minute allowance and a per conversation cap, so a long meeting can be cut short with allowance remaining
  • The free plan cuts off at 30 minutes per conversation and 300 minutes a month
  • The Pro plan still caps a single conversation at 90 minutes
  • Even unlimited plans cap a conversation at 4 hours
  • Imported file transcription has its own separate monthly limit, at 6,000 minutes on Business
  • Paying monthly rather than annually roughly doubles the rate, from $8.33 to $16.99 on Pro

Sonix

  • Monthly hour allowances are small relative to the subscription price: the $25 Core plan includes five hours, which at the published $10 overage rate means the subscription is only worth buying for storage and features rather than for the hours.
  • Unused hours do not accumulate into a meaningful reserve, so an irregular workload of a heavy month followed by a quiet one pays overage in the first and wastes allowance in the second.
  • There is no human correction tier at self-service prices, so anyone with an accessibility or legal accuracy obligation has to add a separate supplier or a member of staff to the workflow.
  • The cited 99 percent accuracy is a best-case figure on clean single-speaker audio, and overlapping speakers, strong accents, technical vocabulary and room noise degrade it enough that editing time, not transcription cost, becomes the real expense.
  • Storage is capped per plan at 25GB to 100GB, and video files consume it fast, so long-running teams end up deleting source media or upgrading a tier for storage they do not otherwise need.

Pricing, plan by plan

Otter.ai

Free
  • BasicFree
    • 300 monthly transcription minutes
    • 3 lifetime audio/video file imports
    • Zoom, MS Teams, Google Meet support
  • Pro$16.99/month
    • 1,200 in-app recording minutes
    • 10 monthly audio/video file imports
    • Up to 90 minutes per meeting
  • Pro Annual$8.33/month
    • 1,200 in-app recording minutes
    • 10 monthly audio/video file imports
    • Up to 90 minutes per meeting
  • Business$30/month
    • Unlimited meetings and in-app recordings
    • Unlimited audio/video file imports
    • Up to 4 hours per meeting

Sonix

$10/month
  • Pay As You Go$10/month
    • $10 per hour transcribed
    • No subscription
    • 30 minutes free to trial without a card
  • Core$25/month
    • 5 hours a month of transcription and translation
    • 25GB storage
    • $275 a year if billed annually
  • Advanced$50/month
    • 20 hours a month
    • 50GB storage
    • $550 a year if billed annually
  • Pro$80/month
    • 40 hours a month
    • 100GB storage
    • $880 a year if billed annually

Which should you pick?

Choose Otter.ai if

  • You need automatic transcription.
  • You want to start without paying.
  • You work on Web, Ios, Android, Mac.
  • You also want real-time transcription.
Otter.ai review

Choose Sonix if

  • You need automated transcription.
  • You work on Web, API.
  • You also want translation.
Sonix review

Questions people ask

Is Otter.ai or Sonix better?
Neither clearly leads. Otter.ai starts at Free and Sonix at $10/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Otter.ai or Sonix?
Otter.ai has a free tier; the other does not. Paid plans start at Free for Otter.ai and $10/month for Sonix.
Does Otter.ai or Sonix run on more platforms?
Otter.ai runs on Web, Ios, Android, Mac. Sonix runs on Web, API.
Can I use Otter.ai for free?
Yes. Otter.ai has a free tier, so you can try it without paying. Sonix starts at $10/month.
What is Otter.ai best used for?
Otter.ai is most often used for meeting transcription and recording, live transcription for accessibility, multi-language meeting support. Of those, meeting transcription and recording and live transcription for accessibility are not what Sonix is typically brought in for.
What can Otter.ai do that Sonix cannot?
Otter.ai covers Automatic transcription, Real-time transcription, Speaker identification, Searchable transcripts. Sonix covers Automated transcription, Translation, Synchronised editor, Subtitle export.

Answered from the vendors’ own pages

Otter.ai: What are the monthly transcription minute limits on Otter.ai plans?

Basic tier includes 300 monthly transcription minutes at no cost. Pro tier includes 1,200 in-app recording minutes. Business tier provides unlimited meetings and in-app recordings.

Source
Sonix: What does Sonix cost per hour?

$10 an hour on pay-as-you-go, and $10 an hour for any usage beyond the monthly allowance on every subscription tier. That overage rate is published, which is unusual in this market.

Otter.ai: What meeting duration limits apply to different Otter.ai tiers?

Pro tier supports up to 90 minutes per meeting. Business tier supports up to 4 hours per meeting. Enterprise tier offers custom configurations.

Source
Sonix: Is there human transcription?

No. Sonix is automated transcription plus an editor for you to correct. If you need a contracted accuracy level, this is the wrong category of product.

Otter.ai: How much can you save with Otter.ai annual billing?

Pro annual plan costs $8.33 per month (51% savings compared to $16.99 monthly). Business annual plan costs $19.99 per month (33% savings compared to $30 monthly).

Source
Sonix: How accurate is it really?

The 99 percent claim assumes clean, single-speaker, standard-accent audio. Multi-speaker recordings with background noise land noticeably lower, and the cost shows up as your editing time.

Otter.ai: What integrations are available with Otter.ai Pro plan?

Pro tier includes integrations with Salesforce, HubSpot, and Zapier. Enterprise tier provides access to Otter API and custom webhooks.

Source
Sonix: How many languages?

Transcription in over fifty languages and translation into a similar number, which is wider than most self-service competitors.

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