Every score is worked out from the vendor's own pages · How we score →Disclosure
SAASINSPECTOR
Head-to-head · AI transcription tools · facts checked 21 Sept 2026

Castmagic vs Sonix

Sonix scores 6.6 to Castmagic's 6.2 among the AI transcription tools we rate, and is the better pick for 1 of the 4 kinds of buyer below.

Castmagic
#2 of 5 AI transcription tools
6.2
/ 10
From
$29/mo (Hobby)
Free plan
No
Sonix
#1 of 5 AI transcription tools
6.6
/ 10
From
$10/hr pay as you go, or $25/mo (Core)
Free plan
No
The verdict

Sonix wins, 6.6 to 6.2

Castmagic writes show notes, blog posts and social posts from a recording, and cuts shareable clips too; Sonix does neither. Sonix, though, costs $25 a month against Castmagic's $29, and it holds SOC 2 and offers a HIPAA option for healthcare. Sonix also offers 4 support channels to Castmagic's 2, and exports to 6 file formats against Castmagic's 5.

Pick Castmagic if you need show notes, posts and shareable clips made.

Pick Sonix if you want SOC 2 and a HIPAA option.

Best for

Who each one suits, decided on the criteria that matter to that buyer and the checked facts where the two differ.

What you get from a recording
Castmagic
Castmagic 8.0 · Sonix 5.5 on what you get from a recording
  • Writes show notes, posts and articles: Castmagic yes, Sonix no
  • Cuts shareable clips: Castmagic yes, Sonix no
Workflow and output
Too close to call
Castmagic 8.5 · Sonix 8.5 on workflow and output
  • File formats it exports: Castmagic 5 export formats, Sonix 6 export formats
  • Apps it connects to: Castmagic 12 integrations, Sonix 15 integrations
Pricing
Too close to call
Castmagic 4.0 · Sonix 4.0 on pricing
  • Cheapest paid plan, monthly: Castmagic $29, Sonix $25
Privacy and trust
Sonix
Castmagic 2.4 · Sonix 10.0 on privacy and trust
  • SOC 2: Sonix yes, Castmagic no
  • GDPR: Sonix yes, Castmagic no
  • HIPAA: Sonix yes, Castmagic no
Section 01

How they score

Both are scored the same way, against the other AI transcription tools we rate, from facts on each vendor's own pages. They split the criteria 1 each, with the rest level.

What you get from a recording40% of the score
Castmagic8.0
Sonix5.5
Workflow and output20% of the score
Castmagic8.5
Sonix8.5
Pricing22% of the score
Castmagic4.0
Sonix4.0
Privacy and trust18% of the score
Castmagic2.4
Sonix10.0
How the score works →
Section 02

Where they differ

Every point where the two vendors' published facts disagree, with a link to where each fact was read. "Not published" means the vendor does not say either way.

Writes show notes, posts and articles
Castmagic
Castmagic
Yes
source ↗
Sonix
No
source ↗
Cuts shareable clips
Castmagic
Castmagic
Yes
source ↗
Sonix
No
source ↗
SOC 2
Sonix
Castmagic
No
source ↗
Sonix
Yes
source ↗
GDPR
Sonix
Castmagic
No
source ↗
Sonix
Yes
source ↗
HIPAA
Sonix
Castmagic
No
source ↗
Sonix
Yes
source ↗
Single sign-on
Sonix
Castmagic
No
source ↗
Sonix
Yes
source ↗
Ways to reach support
Sonix
Castmagic
2 support channels
source ↗
Sonix
4 support channels
source ↗

Published by only one of them

Languages it transcribes
Castmagic
60 languages
source ↗
Sonix
54 languages
source ↗
File formats it exports
Castmagic
5 export formats
source ↗
Sonix
6 export formats
source ↗
Apps it connects to
Castmagic
12 integrations
source ↗
Sonix
15 integrations
source ↗
Cheapest paid plan, monthly
Castmagic
$29
source ↗
Sonix
$25
source ↗
Does not train AI on what you upload
Castmagic
Not published
Sonix
Yes
source ↗
Where they match (9)
Editor synced to the audio
Castmagic
Yes
source ↗
Sonix
Yes
source ↗
Translates transcripts
Castmagic
Yes
source ↗
Sonix
Yes
source ↗
Summaries and chapters
Castmagic
Yes
source ↗
Sonix
Yes
source ↗
Transcribes live
Castmagic
No
source ↗
Sonix
No
source ↗
Transcribes on your own device
Castmagic
No
source ↗
Sonix
No
source ↗
Where it runs
Castmagic
1 platform
source ↗
Sonix
1 platform
source ↗
Shared team workspace
Castmagic
Yes
source ↗
Sonix
Yes
source ↗
API
Castmagic
Yes
source ↗
Sonix
Yes
source ↗
Free plan
Castmagic
No
source ↗
Sonix
No
source ↗
Section 03

Pricing, plan by plan

Every plan each vendor publishes, monthly and yearly where both are offered.

Castmagic

Hobby
$29/mo · $19/mo billed yearly
30 hrs transcribed, billed monthly or $239/yr annually
Starter
$69/mo · $48/mo billed yearly
100 hrs transcribed, billed monthly or $579/yr annually
Team
$199/mo · $139/mo billed yearly
400 hrs transcribed, 5 seats included +$19/mo per seat, billed monthly or $1669/yr annually
Business and scale
From $699/mo

Sonix

Pay As You Go
$10/hr
No subscription; pay per audio hour; 5 GB storage; single-user; no AI workspace
Core
$25/mo · $275/yr
5 hrs/mo transcription & translation; 5 hrs/mo AI workspace; 25 GB storage; 1 user
Advanced
$50/mo · $550/yr
20 hrs/mo transcription & translation; 25 hrs/mo AI workspace; 50 GB storage; 1 user
Pro
$80/mo · $880/yr
40 hrs/mo transcription & translation; 100 hrs/mo AI workspace; 100 GB storage; 1 user
Enterprise
Custom
Everything in Pro plus SOC 2, HIPAA, SSO/SCIM, audit logs, 1 TB storage, unlimited members, dedicated account manager

For everything else about each tool, read the full Castmagic review and Sonix review.

Section 04

Castmagic vs Sonix: common questions

Which is better, Castmagic or Sonix?

Sonix scores 6.6 and Castmagic 6.2 out of 10 among the AI transcription tools we rate. Sonix is ahead on privacy and trust. Castmagic is ahead on what you get from a recording.

Is Castmagic or Sonix cheaper?

Castmagic's cheapest paid plan is $29/mo (Hobby) and Sonix's is $10/hr pay as you go, or $25/mo (Core). Compare what each plan includes below before going on price alone.

Do Castmagic and Sonix have a free plan?

Neither has a free plan.

What can Castmagic do that Sonix cannot?

On the facts both vendors publish: writes show notes, posts and articles and cuts shareable clips.

What can Sonix do that Castmagic cannot?

On the facts both vendors publish: sOC 2, gDPR, hIPAA and single sign-on.

Keep comparing