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Privacy

Last updated November 7, 2026

Wuai is made to keep your videos and your words on your own device. There are no Wuai accounts, no ads and no tracking. This page says exactly what does leave your device, where it goes, and why.

What stays on your device

• The videos, sounds and photos you save or clip, and your Library.
• Captions and translation: they are made on your device by models that run there. Nothing you say, watch or type goes to Wuai for this.
• Your captions and drafts, your history and the sites you have visited.
• Your sign-ins to other sites (on Windows, kept in Wuai's encrypted browser storage).
• Your Wuai Pro license key: it is checked on your device. If you buy Pro on Google Play, Google handles the payment under its own privacy policy, and the app keeps Google's record of the purchase on your device.
• On Android and Windows, the free minutes of translation you have used (and, in versions released before November 2026, of the Plus speech model): they are counted on your device. The free translation count may also be stored on our server as described below.

What goes to the sites you use

Wuai is a browser. When you visit a site, save from it or post to it, your device talks to that site directly, as any browser would, with your sign-in there. What that site collects is covered by its own privacy policy, not this one. Wuai never sends your sign-ins to us.

What goes to Wuai

• Installs. From versions released after November 7, 2026, the phone and computer apps tell wuai.app that they are installed, once: at the first start after Wuai is installed, and again after each update, until it gets through. They send the platform, the release channel, the app's version, the install id described under update checks (and the random one it had before, once), whether it was just installed and, on an emulator, that it is one; nothing else, and nothing comes back. wuai.app keeps it as it keeps an update check: in the record of that install id's keyed hash.
• Update checks. The phone and computer apps ask wuai.app which version to run only when you choose Check for updates in Settings (versions released before November 7, 2026 also ask when they start and then hourly). They send the platform, the release channel (wuai.app, Google Play or the Microsoft Store), the app's version, an install id and, from versions released after October 31, 2026, whether Wuai Pro is on (except on iPhone). Android and Windows also send how many free translation minutes have been used. Updated Apple apps omit that count; the server ignores it from older versions and also ignores iPhone Pro status. Previously collected Apple usage remains until deleted. Wuai from wuai.app on Android, and on Windows and Mac, makes its install id from the device's own id (see Wuai Pro below) with a one-way code, from versions released after November 1, 2026, so Wuai installed again on the same device is still one copy; the first check after updating to such a version also sends the random install id it had before, once, and the first check after Wuai is installed says that it was just installed. Wuai from Google Play, and on iPhone, makes a random install id on your device. A copy running on an emulator (a phone simulated on a computer, to build apps) says that too, and is not counted. The install id gives a new version to a share of devices first, and counts how many copies of Wuai are installed and in use: wuai.app keeps, per install, a keyed hash of the install id (never the id itself), its platform, release channel and version, the country Cloudflare places the connection in when it is first seen, when it was first and last seen, installed again and last changed, those free minutes and Pro, and, if Pro was bought on that device, when and the license number (never the key; if the device asks for its Pro before its first update check, held with the hash for 13 months at most until that check comes); nothing else about you or your device. These records are deleted 13 months after the install was last seen. When you uninstall Wuai from Windows, the uninstaller sends that install id once more, and nothing else, so the copy is no longer counted as in use: wuai.app notes when with its record. An update never sends it. The Windows and Mac apps download their updates from GitHub, which publishes them.
• Questions from AI assistants. wuai.app/mcp answers AI assistants' questions about Wuai (what it does, where to get it, its price, how to use it). What an assistant sends there is used only to answer and is not kept.
• Problem reports, only when you send one. A report holds what you write, the app's version, your device model, system version and language, and a list of the app's recent warnings and failed saves, with web addresses cut to the site's name and file paths removed. A report about a crash or a failed save also holds the error and its technical details (where in the app it happened), shortened the same way. We keep the newest 1,000 reports to fix problems, and delete one on request.
• Wuai Pro on your device. Wuai from wuai.app (on Android, Windows or Mac) sends wuai.app your device's own id (on Android its Android ID, on Windows the computer's MachineGuid, on a Mac its hardware UUID) and the kind of device, over an encrypted connection, only: for the free translation allowance on Android and Windows as described below; when you choose Get Pro, and while that purchase finishes (at most a week); and, from versions released after November 1, 2026, when it starts without Pro, once after it is installed (until that ask gets through), so Pro bought on that device turns on again when Wuai is installed again. An update check never sends the id itself, only the install id made from it, and Wuai from Google Play, where Google Play sells Pro, never sends it for a purchase. On iPhone Pro is bought through the App Store, which keeps it on your Apple ID under Apple's privacy policy. We never store that id: we keep only a keyed hash of it (a one-way code made with a secret only our server holds), so Pro you buy in the app turns on for that device by itself, and again there after a reinstall. The id is never put in a web address and never sent to Stripe: the checkout gets a random one-time token instead. We keep, per checkout started in the app: its token and the device's hash, for a week. Wuai Pro had a free trial until October 28, 2026; there is none now, and nothing starts one. For the devices that started it, we still keep what we kept then: the device's hash, when its trial started, and the kind of device.
• Free translation minutes. To remember the free allowance after reinstalling, Wuai on Android and Windows sends its device identifier, platform and seconds of free translation used to our server, once you start free translation: the first time you turn translation on without Pro, Wuai asks first, and Not now sends nothing. Nothing is sent before that, or with Pro. The server stores a keyed hash of the identifier and the highest usage reported, not the identifier itself. Without a connection, the allowance is kept locally and may reset on reinstall. Wuai does not record new free translation usage on its server for iPhone or Mac. Previously recorded Apple usage remains until deleted. Contact privacy@snagcast.com to request deletion.
• Buying Pro on wuai.app. Stripe takes the payment and keeps your payment details, name, email address and country, under Stripe's privacy policy; we never see your card. Our server keeps, per purchase: Stripe's order and payment numbers, the amount, the license key issued, the hash of the device it was bought on (if bought in the app), and a keyed hash of the email address you paid with (so we can find your key if you lose it; our server does not keep the address itself). The thank-you page can show your key for a week after buying. To take back refunded keys, Wuai downloads a list of revoked key numbers from wuai.app at start; nothing about you is sent with it.

How long we keep it, and why

Purchase records are kept for as long as Wuai Pro is offered, because that is what lets a purchase keep working after you install Wuai again; the trial records from before October 28, 2026 are kept as they are, for the older versions of Wuai that still show that trial. We use them for nothing else and never sell or share them. Problem reports: the newest 1,000. Install records: deleted 13 months after the install was last seen. We keep these to provide what you asked for (Pro you bought, a fix for a problem you reported), and, for purchases, because tax law requires sales records. Write to us to have your trial or purchase records deleted; deleting a purchase record means Pro no longer turns on by itself on a new install.

Other services Wuai uses

• Model and list downloads. Caption, translation and ad-filter files are downloaded from their publishers' hosts (such as Hugging Face and GitHub) when you first need them. Those hosts see your IP address, as for any download.
• This website. wuai.app runs on Cloudflare, which handles each request to deliver it. The site sets no cookies and runs no tracking scripts. It counts its visits as daily totals: how many times each page was opened, where the visit came from (the name of the site or app that sent it, such as Google or ChatGPT, or none), its country (as Cloudflare tells it from the connection), and on which page Download was pressed. Nothing about you is kept with them: not your IP address, your device or browser, or the rest of the address you came from (such as what you searched for). Downloads for Windows come from GitHub.

Children

Wuai is not directed at children under 13, and we do not knowingly collect information from them.

Your choices and rights

You can use Wuai without sending a problem report or buying Wuai Pro, and you can clear your browsing data and sign-ins in Settings. To see or delete a report you sent, or for any question about your privacy, write to privacy@snagcast.com with the approximate time you sent it. Depending on where you live (for example under the GDPR or the CCPA), you may have further rights to access or erase your data; we will honor them.

Changes

If this changes, we will update this page and its date. A change to what leaves your device will also be said in the app's release notes.