Answer
Do dual subtitles work on the Netflix app? NoaLingua answers
No, and the reason is worth two minutes before you try
No. Two subtitle languages at once come from a browser extension, and extensions only run in a desktop browser. The Netflix apps on phones, tablets, smart TVs and consoles have no extension system at all, so nothing can add a second line there — this is a platform limit rather than a missing feature.
Short answer No. Extensions run in desktop browsers only, so phones, smart TVs, consoles and the Netflix app cannot show two subtitle tracks.
The detail behind the NoaLingua answer
Why a phone or a TV cannot do it
A dual-subtitle tool works by running code inside the page and drawing an extra line over the player. That requires a browser that accepts extensions, which in practice means desktop Chrome and other desktop Chromium browsers. Chrome on Android and Safari on iOS do not load this kind of extension, and a smart TV or console app is not a browser at all.
It is worth stating plainly because the alternative is discovering it after installing something. If your study happens on a TV, no browser extension is going to change that, and a tool that implies otherwise is selling you something.
What to do instead
Study at a desktop and watch anywhere else. That split is less annoying than it sounds, because the part that needs a keyboard — clicking words, saving them, reviewing them later — is desk work anyway, and the part that does not is just watching.
With NoaLingua the deck lives in your Chrome profile rather than on a server, so it is genuinely tied to that machine. Moving it to another computer is one exported JSON file. There is no account and no sync, which is the trade: nothing to sign into, and nothing that silently appears on another device either.
More questions people ask NoaLingua
Is there a NoaLingua mobile app?
No. It is a Chrome extension and there is no mobile app, no Firefox build and no Safari build today. If that changes it will be on the roadmap before it is on the site.
Does it work on Edge, Brave or Opera?
It should work on Chromium-based desktop browsers at version 138 or newer, but Chrome is the only one tested and supported.
Can I review my saved words on my phone?
Not directly. You can export your deck to Anki, which does have mobile apps, and review there. Export is free on every plan.
Where this is documented on NoaLingua
Related NoaLingua answers
Try it on the next thing you were going to watch anyway.
Free, with every feature. No account, nothing to cancel, and your deck stays on your machine.
Add to Chrome — Free Add to Chrome Opens the Chrome Web Store listing NoaLingua — beyond dual subs: video, web, PDF — free, no account, Chrome 138 or newer.- Free, and not a trial Every feature on the free plan — both PDF modes, shadowing, all 30 practice formats.
- No account, no email Nothing to sign up for and nothing to cancel. There is no login screen at all.
- Two dropdowns to set up Pick what you are learning and what you want translations in. That is the whole setup.
- Your words stay yours Export to Anki, CSV, a spreadsheet or a full JSON profile — free on every plan.