DeepSRT Mobile

Watch YouTube with AI superpowers: live bilingual captions, instant summaries, and full transcripts — in your language.

DeepSRT Mobile plays any public YouTube video through the official player and adds what YouTube can't:

LIVE CAPTIONS, TRANSLATED

Native caption tracks are translated on the fly into your language and rendered as elegant live captions over the video. Drag to reposition, slide the right edge to resize, and pick your own background color, opacity, and corner roundness.

AI SUMMARIES AND TRANSCRIPTS

Every video gets a structured summary and a tap-to-seek transcript, generated in the language you choose — nine to choose from. Tap any transcript line to jump right there.

NO CAPTIONS? STILL FINE (PREVIEW)

Videos with no caption track at all can be transcribed by AI (opt-in, uses your own Gemini API key). Timing is paragraph-grade in this preview — summaries and transcripts are the star.

BUILT FOR THE PHONE

Paste a link, search by keywords, or share from YouTube. Your recent channels sit one tap away as an avatar row. Rotate for a fullscreen experience with captions that duck out of the way the moment you touch the player.

YOUR KEYS, YOUR CONTROL

Bring your own API keys (Google Gemini, or OpenAI-compatible providers). Keys live in the iOS Keychain and never leave your device. No account, no tracking, no servers of ours in the middle.

One-time purchase. No subscription. Launching at an early-bird price for a limited time — the price goes up after launch.