Checksub
Tool · this deep dive is built from the official pages of the platform itself and of the tools that support it.
Overview
Checksub does four things with someone's video: automatic subtitles with animation, automatic translation of video and subtitles, AI dubbing with synthetic voices, and lip-sync (Lip-Sync) as a separate service. The first three are named on the product page as Auto Subtitles, Translation and AI Dubbing; lip-sync is confirmed by a separate credit-consumption row on the pricing page. The result is exported either as a subtitle file or as a finished video.
The language list at Checksub is the most detailed among those checked, and it is by name. The language list page declares "280 languages supported for captions, subtitles or dubbing" — verbatim — and enumerates the languages with regional variants. All the languages the catalogue needs are present as separate pages: /subtitle/russian, /subtitle/english with 17 regional variants, /subtitle/spanish with variants by country, /subtitle/hindi, /subtitle/arabic with 21 regional variants; Chinese is represented by the variants Cantonese, Mandarin and Wu. The lists are confirmed by the official sitemap, where there are 281 pages of the form /subtitle/* and 77 pages of the form /ai-dubbing/*.
The figures, however, diverge between pages, and we name both of them. The product page promises "over 200 languages", the pricing page mentions "Translation in 187 languages", and only in relation to Enterprise. Dubbing supports fewer languages than subtitles: 77 dubbing pages against 281 subtitle pages. The set of languages differs by plan: on Junior and Starter it says "Up to 1 translation per project".
Which platforms it works with
Exactly one direct integration is confirmed — connecting a YouTube channel: 1 channel on the Starter plan, several on Enterprise. Everything else from the large list is compatibility, that is, exporting a file rather than auto-publishing.
Subtitle formats from the pricing page: SRT, VTT and onwards behind an ellipsis. Separately there is the export of video with burned-in subtitles.
Compatible platforms and programs the product page lists at more than 60. Editing suites: Adobe Premiere Pro, Final Cut Pro, DaVinci Resolve, Filmora, iMovie, Clipchamp. Platforms: YouTube, Vimeo, TikTok, Instagram, Facebook, LinkedIn, Twitch, Dailymotion, Snapchat. Educational and corporate: Zoom, Moodle, Udemy, Teachable, Canvas, Kaltura, Panopto, Wistia, Brightcove, Vidyard. Editors: Canva, Loom, Animoto, Powtoon, Lumen5, InVideo.
The difference between "compatible" and "connects" is fundamental here: the tool can publish for you only on YouTube.
Pricing
The prices are from the pricing page, the currency is dollars. There are two schemes, and the gap between them is noticeable.
Monthly: Junior — 18 USD a month, Starter — 59 USD a month (marked "Popular"), Enterprise — on request, from 299 USD a month with annual payment.
With annual payment: Junior — 12 USD a month, which gives 144 USD a year; Starter — 48 USD a month, that is 576 USD a year.
The cheapest step is 12 USD a month with annual payment. If you pay monthly, nothing below 18 USD a month is available.
Enterprise stands apart twice over: it is the only plan whose price is named as a lower bound "from", and the only one for which the pricing page mentions a number of translation languages. That is, the step is separated from the others not only by the sum but by the composition of language support.
What is free
There is no permanent free plan on the pricing page. A trial access is declared, verbatim: "To help you discover the power of Checksub, we provide a free trial".
The volume of trial credits is not named on the page.
What is known for certain about the free option is the watermark: video export goes out "With Watermark", whereas on all paid plans the comparison table says "No Watermark". This is the tool's brand mark, not a note that the subtitles or the dubbing were made by AI.
Restrictions
The limits are counted in credit-minutes. Junior — 2 hours of credits a month, on annual payment 24 hours a year. Starter — 5 hours a month, on annual 60 hours a year.
The number of hours itself, however, matters less than the rate of deduction: it differs by service. Subtitles and translation — 1 minute of credits per 1 minute of video. Dubbing — 3 minutes of credits per 1 minute of video. Lip-sync — 5 minutes of credits per 1 minute of video. Put otherwise, Junior's two-hour quota on subtitles is two hours of video, while on lip-sync the same credits cover 24 minutes.
About carry-over it is said verbatim: "Credits not used from a month are kept for 6 months". Unspent annual credits carry over into the following year while an annual subscription is in force.
A restriction on the length of a single video is not named on the pricing page. There may be no limit, or there may be one — the page does not write about it.
The number of connectable YouTube channels is part of the limits too: one on Starter, several on Enterprise; for Junior a channel connection is not named at all.
Rights to the output
There is no answer, and the reason must be named precisely, because it is atypical.
The conditions of sale (CGV) exist and they are public: a link from the site footer leads to the document. But it is not machine-readable: the address gives two redirects in a row to app.notion.com, and the body of the document is drawn by scripts. Rights to subtitles, dubbing and translation are not described on the site pages that were read.
This does NOT mean that there are no restrictions and that the rights are yours. The document that distributes the rights exists, is published, and is evidently accessible to a human in a browser — but not to us. Our gap here is of a different kind from the usual silence of a source: the source is not silent, it is simply served in a form we do not read.
Differences by plan in the rights to the output cannot be established from what is accessible either. On the pages that do read — product, languages and prices — there is no legal part at all: they describe what the tool does, but not who owns what has been made.
The practical conclusion from this is single: at Checksub the question of rights to subtitles, dubbing and translation will have to be put to the company directly, rather than looked for on the site.
Do they train on your data
Nothing is said, and this is established reliably: the privacy policy was read in full. About training models on uploaded recordings, transcripts and translations there is not a word in it — neither an assertion nor a denial.
The data owner is named in the policy: CHECK COMPANY, La Ciotat, France. The list of collected data is detailed — device, usage, session recordings, correspondence — but uploaded content is not mentioned once in connection with training.
A mechanism for opting out of training is also absent from the policy, and for the same reason: the subject of training is not there. There is formally nothing to opt out of. This is not the same as "opting out is impossible": the tool does not declare any training at all.
The rights of the data subject are listed in general form under GDPR, and the address for requests is team@checksub.com.
How you earn with it
About commercial use of the output there is nothing substantive to say: the document where this might have been written lies in Notion and is not readable. Neither a permission nor a prohibition have we seen.
Practically, monetisation is affected by one confirmed circumstance — the watermark. On the free trial the video is exported "With Watermark", on all paid plans "No Watermark". This does not substitute for the legal side.
The second practical circumstance is the credit rate. Dubbing costs three times and lip-sync five times what subtitles cost, and when planning a budget this matters more than the number of supported languages.
What it will not do
First, honestly about the gap. Rules about what the tool refuses to do, and requirements regarding rights to uploaded third-party recordings, are ABSENT from the accessible pages, since public terms of use were not found on the site and the CGV in Notion are not readable.
For a tool that clones speech in dubbing and does lip-sync on someone else's face, the absence of accessible rules about third-party recordings is a noticeable gap. But this is an observation about the availability of a document, not an assertion about its content: the rules may well be there, and we simply did not read them.
What the tool will certainly not do, by the confirmed facts:
Publish the result for you anywhere other than YouTube it will not be able to: out of the sixty-odd platforms named, only a YouTube channel connects, and the rest is format compatibility.
Hand over video without a watermark on the free trial it will not: there it is "With Watermark".
Give more than one translation per project on the junior plans it is not ready to: Junior and Starter say "Up to 1 translation per project", while 187 translation languages are named for Enterprise.
Dub into all 280 languages in which it makes subtitles it will not undertake: dubbing pages in the sitemap number 77 against 281 subtitle pages.
Name the volume of the free trial it is not ready to: "a free trial" without a figure.
Mark the result as made by AI it does not promise: requirements to mark the output are absent from the accessible pages, about metadata and C2PA there is silence, and the watermark on the trial reports the brand, not the origin.
Verified data
The checked data this deep dive rests on.
About the platform
automatic subtitles for video with animation, automatic translation of video and subtitles, AI dubbing with synthetic voices, and Lip-Sync as a separate service; the result is exported as a subtitle file or as video
the three products named are Auto Subtitles, Translation and AI Dubbing; lip-sync is confirmed by a separate credit-consumption row on the pricing page
source, checked 2026-08-07
Sources diverge: THERE IS A LIST and it is the most detailed among those checked: the language-list page claims «280 languages supported for captions, subtitles or dubbing» (verbatim) and names the languages with regional variants. All six languages of the catalogue are present as separate pages: /subtitle/russian, /subtitle/english (17 regional variants), /subtitle/spanish (variants by country), /subtitle/hindi, /subtitle/arabic (21 regional variants), and Chinese as the Cantonese, Mandarin and Wu variants. Dubbing supports fewer languages: the sitemap has 77 pages of the form /ai-dubbing/*-dubbing. The figures for translation disagree: the product page promises «over 200 languages», while the pricing page mentions «Translation in 187 languages» for Enterprise only
the lists by name are confirmed by the official sitemap at https://www.checksub.com/sitemap.xml, which has 281 /subtitle/* pages and 77 /ai-dubbing/* pages. THE SET OF LANGUAGES DIFFERS BY PLAN: on Junior and Starter there is only «Up to 1 translation per project», and the 187 translation languages are named for Enterprise
source, checked 2026-08-07
Platforms
subtitle formats from the pricing page: SRT, VTT and so on after an ellipsis; export of video with burnt-in subtitles. Direct connection of a YouTube channel — 1 channel on the Starter plan, several on Enterprise. The product page lists more than 60 compatible platforms and programs, among them the editing suites Adobe Premiere Pro, Final Cut Pro, DaVinci Resolve, Filmora, iMovie and Clipchamp; the platforms YouTube, Vimeo, TikTok, Instagram, Facebook, LinkedIn, Twitch, Dailymotion and Snapchat; the educational and corporate Zoom, Moodle, Udemy, Teachable, Canvas, Kaltura, Panopto, Wistia, Brightcove and Vidyard; and the editors Canva, Loom, Animoto, Powtoon, Lumen5 and InVideo
direct integration is confirmed only for YouTube (connecting a channel, on the pricing page); the rest are named as compatibility, that is, exporting a file rather than auto-publishing
source, checked 2026-08-07
Pricing
monthly: Junior — 18 USD a month, Starter — 59 USD a month (marked Popular), Enterprise — on request, from 299 USD a month paid yearly. Paid yearly: Junior — 12 USD a month (144 USD a year), Starter — 48 USD a month (576 USD a year)
source, checked 2026-08-07
12 USD a month paid yearly (the Junior plan, 144 USD a year); paid monthly the cheapest tier is 18 USD a month
source, checked 2026-08-07
there is no permanent free plan on the pricing page; a trial is claimed: verbatim «To help you discover the power of Checksub, we provide a free trial» — the volume of trial credits is not named on the page. The key difference of the free option: video export goes «With Watermark», while on all paid plans it is «No Watermark»
SILENCE OF THE SOURCE as to the size of the trial; the watermark on the free option is confirmed by the comparison table
source, checked 2026-08-07
Limits and restrictions
limits in credit-minutes: Junior — 2 hours of credits a month (24 hours a year on yearly billing), Starter — 5 hours a month (60 hours a year). Consumption differs by service: subtitles and translation cost 1 minute of credits per 1 minute of video, dubbing 3 minutes of credits per 1 minute of video, lip-sync 5 minutes of credits per 1 minute of video. Verbatim on carry-over: «Credits not used from a month are kept for 6 months», and unspent yearly credits carry over into the following year while the yearly subscription is active
translation and dubbing are counted differently — that matters more than the number of languages when planning a budget. No limit on the length of a single video is named on the pricing page
source, checked 2026-08-07
Legal
on the free option video is exported with the service's watermark («With Watermark» in the comparison table), and on all paid plans there is no mark («No Watermark»). This is a brand mark, not a notice that the subtitles or dubbing were made by AI; there is no requirement to label the result as AI content on the accessible pages
the watermark is confirmed by the pricing page; about metadata and C2PA there is silence
source, checked 2026-08-07
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