Language Reactor ReadLang 1L

Contains adsIn-app purchases
4.6
864 reviews
50K+
Downloads
Content rating
Everyone
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About this app

Learn languages with Language Reactor using Active Recall and Spaced Repetition in context.

Learn a new word just to forget it minutes later?

The problem isn’t you—it’s passive recall. By seeing translations too quickly, your brain never truly locks in new vocabulary.

Our app flips the process: you try recalling words first, then check the translation. This active recall approach cements vocabulary into your long-term memory. Ready to stop forgetting and start mastering? Install now!

Features include:
- Active Recall: Promotes deeper memory retention by requiring you to recall words and phrases rather than passively recognizing them.
- Adaptive Learning: Starts with full translations and gradually shifts to giving hints like the first letter of a word, catering to your learning progress.
- Seamless Integration: Works intuitively with text and audio on various websites, providing a fluid learning experience without switching contexts.
- Customizable Settings: Allows you to adjust the difficulty level and choose which aspects of language learning to focus on.

To get started, navigate to any webpage and click on unfamiliar words or listen to dialogues. The extension will facilitate your learning process without interrupting your browsing experience.

We support 100+ languages and reader with Voice Aloud Reader and more...

We are constantly improving our tools based on user feedback. Please feel free to reach out if you have suggestions or need support. We're excited to be part of your language learning journey!
Updated on
Feb 5, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, Personal info and 4 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.7
798 reviews
Zaa Lynn
October 29, 2025
I'm liking it so far, but a couple majorly annoying bugs. 1. The translation box keeps popping back up no matter how many times I press x, which kinda makes it hard to use Youtube properly. 2. Sometimes it cuts up a sentence between two lines. then you can't translate the entire sentence at once, limiting context. 3. Sometimes when you link words together, they won't unlink. All that said, I definitely see the potential! it's already helping me 😊
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MOMBRO28
January 2, 2026
i love thiss for learning new language it's really usefull, update this is really helpfull because i can watching video plus learning new vocabulary, really recomend this
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Harsh Tiwari
January 26, 2026
brilliant app but some youtube videos have no subtitles otherwise very good app
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What’s new

- improved performance and fixed bugs