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Translation · head to head

SDL Trados Studio vs Sonix

SDL Trados Studio logo

SDL Trados Studio

Translation

Windows desktop CAT tool that agencies treat as the default exchange format

From
On request
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

  • Each has a real cost: SDL Trados Studio it runs on Windows only, so macOS translators pay for a virtual machine or a second computer before they can accept work.; 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: SDL Trados Studio covers Translation memory, Sonix covers Automated transcription.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which SDL Trados Studio and Sonix actually diverge.

Attributes where SDL Trados Studio and Sonix differ
AttributeSDL Trados StudioSonix
Starting priceOn request$10/month
Pricing modelquotePer hour of transcription
PlatformsWindows, WebWeb, API

Identical on both: free tier (No), user rating (Not yet rated), category (Translation).

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 SDL Trados Studio

  • Translation memory
  • Term base integration
  • File filters
  • Alignment
  • Quality assurance checks
  • App store extensions

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.

SDL Trados Studio

  • Freelance translators who must open and return agency supplied Studio packagesnot Sonix
  • Language service providers running multi-vendor projects with shared memories and term basesnot Sonix
  • Regulated translation work where segment level memory matches must be auditablenot Sonix
  • Translating formats such as InDesign or structured XML where tag handling is the hard partnot Sonix

Sonix

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

Where each one falls short

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

SDL Trados Studio

  • It runs on Windows only, so macOS translators pay for a virtual machine or a second computer before they can accept work.
  • A perpetual licence covers the version you bought, and each major release is a further purchase, so the total cost over five years resembles a subscription without being described as one.
  • The learning curve is long: project settings, filters and memory configuration have to be understood before quality output is possible, which makes casual use impractical.
  • Memories and projects are local by default, and real collaboration needs GroupShare or the cloud tiers at extra cost, so two translators sharing one memory is a paid upgrade.
  • Third party plugins from the app store are maintained by their authors and frequently stop working after a major Studio release, which strands workflows that depend on them.

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

SDL Trados Studio

On request
  • SDL Trados Studio$undefined/year
    • Freelance, Professional and cloud tiers sold separately
    • Perpetual desktop licences and subscriptions both offered
    • Prices vary by region, reseller and frequent discount campaigns

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 SDL Trados Studio if

  • You need translation memory.
  • You work on Windows, Web.
  • You also want term base integration.
SDL Trados Studio review

Choose Sonix if

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

Questions people ask

Is SDL Trados Studio or Sonix better?
Neither clearly leads. SDL Trados Studio starts at On request and Sonix at $10/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, SDL Trados Studio or Sonix?
SDL Trados Studio starts at On request and Sonix at $10/month.
Does SDL Trados Studio or Sonix run on more platforms?
SDL Trados Studio runs on Windows, Web. Sonix runs on Web, API.
What is SDL Trados Studio best used for?
SDL Trados Studio is most often used for freelance translators who must open and return agency supplied studio packages, language service providers running multi-vendor projects with shared memories and term bases, regulated translation work where segment level memory matches must be auditable, translating formats such as indesign or structured xml where tag handling is the hard part. Of those, freelance translators who must open and return agency supplied studio packages and language service providers running multi-vendor projects with shared memories and term bases are not what Sonix is typically brought in for.
What can SDL Trados Studio do that Sonix cannot?
SDL Trados Studio covers Translation memory, Term base integration, File filters, Alignment. Sonix covers Automated transcription, Translation, Synchronised editor, Subtitle export.

Answered from the vendors’ own pages

SDL Trados Studio: Is it still called SDL Trados?

The product is now sold as Trados Studio by RWS, which acquired SDL in 2020. Older documentation and job adverts still say SDL Trados.

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.

SDL Trados Studio: Do I need it if my clients use a cloud TMS?

Often yes. Agencies still send Studio packages, and accepting them without the tool means manual conversion and lost memory matches.

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.

SDL Trados Studio: Can I run it on a Mac?

Not natively. Translators use Parallels, Boot Camp on older hardware, or a Windows virtual desktop.

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.

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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