Side by side
Prevail CheckMate vs Sonix
Both stand on legal transcription software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Paid APIWeb
CheckMate combines live transcription and collaborative proceeding notes with AI tools for legal teams. Factor in the scheduling requirement and additional fees, and note that personal provider connections require user-supplied credentials.
Visit Prevail CheckMate Paid API
Sonix combines multilingual transcription and translation with speaker identification, timestamps, and several export formats. Compare the included monthly hours, storage, and seat charges against your workload before choosing a plan.
Visit SonixThe facts
| Prevail CheckMate | Sonix | |
|---|---|---|
| Free plan | Not published | No |
| Open source | Not published | Not published |
| Runs on | API, Web | API |
| Lowest paid plan | Free or on request | Core: $25 per seat a month |
| Plans published | 1 | 5 |
| Maker | Not published | Sonix |
| Website | prevail.ai | sonix.ai |
| On legal transcription software | #16 of 24 | #20 of 24 |
Prevail CheckMate: what it does well
- Searchable live transcripts identify speakers across three proceeding formats.
- Teams can share notes and tag colleagues during proceedings.
- Supports multiple external AI providers and a native option.
- Searches uploaded files and returns passages and file names.
- Prevail states it holds SOC 2 Type 2 and ISO 27001 certifications.
What to know first
- Must be requested when scheduling a session.
- Additional fees apply.
- Personal AI connections require the user’s provider API key and credentials.
Sonix: what it does well
- Supports 54 languages
- Speaker identification and timestamps
- Exports to DOCX, PDF, TXT, SRT, and VTT
- API access is available
What to know first
- No free plan
- Subscription plans include one user
Alternatives to Prevail CheckMate Alternatives to Sonix The whole list

