Comparison

Language Reactor ReadLang 1L vs Polyglot Video Player

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Language Reactor ReadLang 1L

This app helps you learn new vocabulary by actively recalling words and phrases before revealing translations. It adapts to your progress, offering hints as you improve, and integrates seamlessly with web content for an immersive learning experience.

Highlights
  • Active Recall for memory retention
  • Adaptive learning with gradual hints
  • Seamless web integration
  • Supports over 100 languages
  • Customizable learning settings
  • Spaced repetition system
Features
Read full description

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! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Polyglot Video Player

This app allows you to watch videos with two subtitle tracks displayed simultaneously. It's ideal for language learners to compare translations and original text in real-time, or for multilingual families to enjoy content together.

Highlights
  • Simultaneous dual subtitles
  • Language learning accelerator
  • Customizable subtitle display
  • Wide format support
  • Smooth playback
Features
Read full description

Unlock a new dimension of video viewing and language learning with Polyglot Video Player. Have you ever watched a foreign film and wished you could see both the original language captions and a translation in your native tongue at the exact same time? Standard video players limit you to just one subtitle track, forcing you to choose between understanding the plot or studying the language structure. Polyglot Video Player solves this problem once and for all iOS devices. Our app is designed with a singular, powerful purpose: to display two different subtitle tracks simultaneously on the same screen. This makes it the ultimate tool for serious language learners and polyglots in training. Imagine watching anime, K-dramas, or international cinema with your native language subtitles at the bottom and the target language script at the top. You can instantly compare sentence structures, idioms, and vocabulary in real-time, drastically accelerating your comprehension without constantly pausing to check a dictionary. It is not just for students, either. Polyglot Video Player is perfect for multilingual households wishing to enjoy movies together, ensuring everyone understands the dialogue regardless of their primary language. Key Features: Simultaneous Dual Subtitles: The core feature you need. Load and display two separate subtitle files at once on any video. Language Learning Accelerator: The most efficient way to compare translations versus original audio side-by-side on the screen. Customizable Display: Don't let text block the action. Easily adjust the size, color, and vertical position of each subtitle track independently to suit your preference. Wide Format Support: Compatible with most popular local video formats and standard subtitle file types (such as .SRT). Smooth Playback: A clean, user-friendly interface designed for a seamless viewing experience on phones and tablets. Stop compromising on your video experience. Break down communication barriers and master new languages faster. Download Polyglot Video Player today and watch the world in double vision!

Screenshots

Language Reactor ReadLang 1L4 screens
Polyglot Video Player4 screens

Verdict

The call

The clearest difference is in-app purchases: Polyglot Video Player at none against Language Reactor ReadLang 1L's 3. Polyglot Video Player also leads on rating (5.0 vs 4.7). Language Reactor ReadLang 1L's advantage is update cadence (weekly vs every 2 months) and ratings volume (187 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Language Reactor ReadLang 1L sells 3 in-app purchases, starting at $1.99 per 7 days. Polyglot Video Player asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Polyglot Video Player holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Language Reactor ReadLang 1L has 187 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Language Reactor ReadLang 1L ships an update weekly, Polyglot Video Player every 2 months. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Language Reactor ReadLang 1L versus Polyglot Video Player: the parameters behind the verdict, then further details
ParameterLanguage Reactor ReadLang 1LPolyglot Video Player
PriceFreeFree
Rating4.7 (187 ratings)5.0 (1 ratings) — better
Positive reviews82.6% of reviews—
Number of ratings187 — better1
Update frequencyWeekly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size58 MB19 MB
Age rating17+4+
DeveloperNguyen Hong PhucSabrina Aridi

In-app purchases

3 purchases

Language Reactor ReadLang 1L

Subscriptions2
  • Unlimited Words$1.997 Days
  • Unlimited Words$23.991 Year
One-time1
  • Lifetime$48.99
None

Polyglot Video Player

No in-app purchases

Questions

Is Language Reactor ReadLang 1L free?
Language Reactor ReadLang 1L is free to download, with in-app purchases available.
Is Polyglot Video Player free?
Polyglot Video Player is free to download, with no in-app purchases.
Which has better reviews, Language Reactor ReadLang 1L or Polyglot Video Player?
Polyglot Video Player is rated higher. Language Reactor ReadLang 1L averages 4.7 out of 5 from 187 ratings, while Polyglot Video Player averages 5.0 from 1 ratings.
Do Language Reactor ReadLang 1L or Polyglot Video Player have ads?
Neither Language Reactor ReadLang 1L nor Polyglot Video Player shows ads.
Which is updated more often, Language Reactor ReadLang 1L or Polyglot Video Player?
Language Reactor ReadLang 1L ships an update weekly, and Polyglot Video Player every 2 months. Most recently, Language Reactor ReadLang 1L was updated on November 8, 2026 and Polyglot Video Player on October 30, 2026.

Other comparisons