About
Yaysoft LTD · Last updated 6 August 2026
Who builds this
YouTube Translate is developed and published by Yaysoft LTD, which trades as Yay Apps. We are an independent mobile software company; this app is our own product, not a white-label of someone else's service. You can reach us at yayappsltd@gmail.com — that address is read by the people who build the app, not by an outsourced help desk.
One product, several names
The same app appears under different names depending on where you find it, because app stores restrict the use of third-party trademarks in app titles. All of the following refer to one product from one company:
- This website: YouTube Translate — youtubetranslate.app
- Apple App Store: “Video Translate: Subtitles” — app id 6747507241
- Google Play: “Youtube Translate & Summarize” — net.yaysoft.ytranslate
- Legal entity: Yaysoft LTD, trading as Yay Apps
What the app actually does
You give it a public YouTube link and it gives you the words back as text. If the video already has captions — auto-generated by YouTube or uploaded by the creator — the app reads that track directly. If it has none, the app can transcribe the audio itself using Google's Gemini model. From the resulting transcript you can translate into more than 134 languages, generate a summary in three depths and two formats, or build flashcards and a quiz for studying. Transcripts export to PDF. The app's own interface is localized into 30 languages.
What is free and what is not
Extracting subtitles and transcripts from any public video that already has YouTube captions is free and unlimited, with no account and no card. There is no daily allowance to run out of on that path. A Premium subscription covers the work that runs an AI model: transcribing videos that have no captions, translating, summarising, and generating flashcards or quizzes. We publish this split plainly because it is the question people actually ask, and because a vague answer helps nobody.
Limits we will state openly
- AI transcription accepts videos up to 1 hour when requested directly, or up to 2 hours on the automatic fallback used for caption-less videos. Reading existing captions has no length limit.
- Private and unlisted videos never work, on any tier — YouTube's API does not expose them to third-party apps.
- Live streams must finish and be archived before they can be processed.
- AI transcription and translation are machine-produced. They are good enough to follow an argument, but technical vocabulary, strong accents, overlapping speakers and poor audio are where errors appear. The original transcript stays available so anything that reads oddly can be checked.
Ratings and reviews
We do not publish star ratings on this website. Ratings belong on the App Store and Google Play listings, where they are verified by the platform and cannot be edited by us. Any rating you see for this app should come from one of those two places.
Content published on this site
Some AI-generated video summaries are published publicly on this site, in the language they were generated in. These are summaries written from a video's transcript — we do not republish the transcripts themselves. If a summary of your video is published here and you would prefer it were not, use the opt-out form; if you have a copyright concern, email yayappsltd@gmail.com.
Legal
See our Privacy Policy and Terms of Use.