Checksub vs Sonix Comparison 2026
Both cover captions & subtitles and transcription & show notes. Here is what separates them on price, billing, what you can take with you, and coverage.
At a glance
- Sonix starts cheaper, at $10.
- Neither has a free tier.
Side by side
Checksub | Sonix | |
|---|---|---|
| Starting price (they differ) | From $12 | From $10 |
| Pricing model | Free trial, then paid | Free trial, then paid |
| Free tier | No | No |
| Billing | Not stated | Usage-based |
| Free trial | Not stated | Not stated |
| API | Not stated | Not stated |
| Data export | Not stated | Not stated |
| Their cut | None | None |
| Runs on | Web | Web |
| Covers | Captions & Subtitles, Transcription & Show Notes |
Shaded rows are where the two answers disagree and both listings have answered. A row where one side has not stated a fact is left plain, because silence is not a difference.
Checksub
Subtitles, dubbing and voice cloning
Checksub subtitles a video, translates the result and will dub it in a cloned voice with lip sync, which puts the whole localisation sequence behind one credit balance instead of three services. Credits are issued for the year rather than the month, so a batch of back catalogue does not need spreading across quarters. Subtitle files export as SRT and VTT for anybody who wants to burn them in elsewhere. The entry plan carries a watermark and one translation per project, which is the ceiling most people meet first.
Our note
The watermark is the real difference between the two plans, so price Starter as the entry point if the output is going anywhere public. Count your hours across the whole year before choosing, because credits do not reset monthly and a batch of archive footage will eat the Junior allowance in one sitting.
Sonix
Transcription you can pay for by the hour
Sonix will bill by the hour rather than by the month, which is the right shape for somebody who transcribes a batch of interviews twice a year and nothing in between. Accuracy across its 54 languages is good and the editor lines the text up against the audio. Subscribers get storage and an AI workspace that the hourly rate does not include.
Ratings are the average of reviews readers left. The facts are stated by each tool’s own listing and are not verified by CloutStack. How we make money.