Prime Video
Amazon Prime Subtitles: Turn On, Change and Fix Them
How to turn Amazon Prime subtitles and captions on or off on any device, change their language and size, fix common problems and watch with two at once.
Dual subtitles
16 articles on the InterSub Blog.
JapaneseBest Anime to Learn Japanese: 12 Picks by Level
The best anime to learn Japanese, from beginner to advanced: why each show suits learners, where to watch it legally, and one study tip for each.
ChineseBilibili English Subtitles: How to Watch Bilibili in English
How to get Bilibili English subtitles on Bilibili.tv and bilibili.com, what to do when a video only has Chinese, and which browser extensions translate it.
Dual subtitlesComprehensible Input: How to Learn From Shows
Comprehensible input explained: Krashen's input hypothesis, how much you need to understand, and a four-stage subtitle setup for learning from shows.
Disney+How to Turn On Subtitles on Disney Plus (Every Device)
How to turn on subtitles on Disney Plus in a browser, on a phone, TV or Roku, change their language and look, fix missing tracks, and watch with two at once.
Dual subtitlesDualsub vs Trancy vs Subadub: 7 Extensions Compared
Dualsub, Trancy, Subadub, DualPiP, Sublango, Language Reactor and InterSub: what each one does, where it works, what it costs and who it suits.
Dual subtitlesDuolingo Alternatives: 13 Apps That Fill the Gaps
Honest Duolingo alternatives grouped by what they add: tutors, courses, real listening and flashcards. Prices, free plans and a weekly mix to try.
FrenchBest French Shows to Learn French on Netflix, by Level
The best French shows to learn French on Netflix, sorted by level: accents, speed and slang in each, how to get French subtitles, and a two-week plan.
HBO MaxHBO Max Subtitles: Turn On, Change, Fix (and Remove ASL)
HBO Max subtitles on every device: turn them on or off, change language and style, remove the ASL interpreter, fix captions, and watch with two lines at once.
JapaneseJapanese Honorifics: -san, -kun, -chan and More in Anime
Japanese honorifics as you hear them in anime: -san, -kun, -chan, -sama, senpai, -dono, -tan, -chi, with example lines, a reference table and how to spot them.
Dual subtitlesLanguage Reactor Review and the Best Alternatives (2026)
An honest Language Reactor review: strengths, Pro pricing, browser limits, and the best Language Reactor alternative for Firefox, Prime Video or Disney+.
KoreanLearn Korean With K-Dramas: A Practical Guide
How to learn Korean with K-dramas: where to find Korean subtitles, how to turn them on in Netflix, a step-by-step method, and dramas to start with.
JapaneseNetflix Japanese Subtitles: How to Turn Them On and Learn
How to turn on Netflix Japanese subtitles on a computer, TV or phone, why they are sometimes missing, and how to watch with Japanese and English at once.
Dual subtitlesShadowing Technique: How to Practice with Real Videos
The shadowing technique for language learners: what it is, why it helps, and a step-by-step routine with YouTube, Netflix and course videos.
NetflixNetflix Two Subtitles: How to Watch With Two at Once
Netflix plays one subtitle track. How to get dual subtitles on Netflix with a browser extension, on a computer and on a TV, and which settings help you learn.
Dual subtitlesDouble Subtitles: Two Subtitles at Once for Learning
What double subtitles are, when two subtitles at the same time help you learn a language, when they get in the way, and how to show them in YouTube or VLC.