Mobile app · Education & science

dual-sub-replay

Open-source Android app for YouTube dual subtitles, on-device translation, and tap-to-replay language learning.

Completely free
Android
Open source
No account

Overview

dual-sub-replay is a language learning mobile app, available on Android.

Features described in its GitHub repository: subtitles.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information

“Open-source Android app for YouTube dual subtitles, on-device translation, and tap-to-replay language learning.” — GitHub, 10 November 2026
“Watch videos with subtitles in two languages, tap a sentence to hear it again, and tap a word to see what it means.” — GitHub, 10 November 2026

At a glance

dual-sub-replay is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (MIT) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

Open source code
No account needed
Commercial use allowed

Sources and checks

Facts collected from GitHub (credit card, account, source code, publisher, licence, free status, platforms, commercial use) — 10 November 2026
Last technical check: 10 November 2026
Description from github.com — Dépôt GitHub hoangkien1703/dual-sub-replay (MIT)

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