Comparison

Language Reactor vs Create PDF Text Document

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

Head to head
About

Language Reactor

Learn languages by watching YouTube videos, podcasts, and movies. This app provides seamless AI-powered translations and an AI tutor to explain slang and idioms. Practice pronunciation with real-time transcriptions and sentence-by-sentence subtitles.

Highlights
  • Learn from real YouTube videos, podcasts, and movies
  • AI-powered translations in 80+ languages
  • AI Assistant for instant explanations
  • Shadowing practice for pronunciation
  • Sentence-by-sentence synchronized subtitles
  • Part-of-speech highlighting for grammar
Features
Read full description

You know the words. Real speech still gets away from you. Sound familiar? Fast. Blurred together. Half the sounds gone. PlayLingo turns any YouTube video into practice: understand every line, then say it yourself. Subtitles, translation, explanations, shadowing and word review. WHO IT'S FOR • You read English fine, but listening is the one skill that won't move • You want to keep up shadowing but quit after three days • You want to follow your favorite YouTubers, shows and interviews without pausing for a dictionary • You learn a language other than English: same app, same method WATCH: any video becomes your material • Any YouTube video. Plus curated picks refreshed every day • Collections by level, A1 to C2, and by topic. Shelves like "Start here" and "6 minutes or less" UNDERSTAND: one sentence at a time, never left behind • Subtitles split by sentence and synced with the video • Phonetic transcription, so you see how a word actually sounds • Parts of speech in color, so the shape of a sentence is visible at a glance • Translation in context: what the line means in this scene • Tap a word or an idiom and Lingo, your assistant, explains it in this sentence. "Make sure" is explained as one phrase, not two words PRACTICE: five ways to watch the same video • Watch: subtitles and translation on, follow along • Understand: translation hidden, work out the meaning yourself • Listen: text hidden, catch the line by ear. Tap only the word you missed • Build: put the line back together from its words • Speak: say each line out loud. Words light up as you say them • Even videos in your own language work: you study their translation into the language you're learning REMEMBER: words come back before you forget them • Save words and phrases straight from the subtitles • Review runs on FSRS, a spaced-repetition algorithm timed to your memory • Every card keeps the scene and the sentence where you heard the word • A Home Screen widget with your word of the day KEEP GOING • Three minutes of watching or one round of practice counts as a study day • Your streak comes with freezes that cover a missed day on their own • Sign in with Apple and your words and progress sync across iPhone and iPad FREE AND PRO • Free every day: subtitles, translation, Lingo's explanations, daily practice and word review • No limit on which videos you can open. Any YouTube video • The free plan limits only daily watch time and how much you practice. Pro removes those limits • Cancel anytime in the App Store WHAT PEOPLE SAY (App Store reviews) "For the first time, I actually enjoy learning English." "The only app I use to watch English videos. It's simple, and works great." "Love the dual subtitle function." LANGUAGES (67) English, Spanish, French, German, Italian, Portuguese, Japanese, Korean, Chinese, Arabic, Turkish, Russian and more, each with subtitles and explanations in your language. Now you can level up any language just by watching what you love. Contact: info@playlingo.app Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

About

Create PDF Text Document

Features
Read full description

Write texts in a simple way and export the files in PDF format. All features are free. The application has simple functionalities to format your text, such as: font size, color, alignment, bold text, italics, underline, long direct quote, footnotes, page break and insert image.

Screenshots

Language Reactor4 screens
Create PDF Text Document4 screens

Verdict

The call

The clearest difference is ads: Language Reactor at none against Create PDF Text Document's shown. Language Reactor also leads on update cadence (weekly vs every 5 weeks). Create PDF Text Document's advantage is iOS requirement (13.0 vs 18.0). On price, in-app purchases and device support 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 sells 6 in-app purchases, starting at $2.99 per 7 days and Create PDF Text Document sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Language Reactor ships an update weekly, Create PDF Text Document every 5 weeks. The most recent releases landed on September 29, 2026 and September 22, 2026 respectively.

Scorecard3 real differences · 7 level
Language Reactor versus Create PDF Text Document: the parameters behind the verdict, then further details
ParameterLanguage ReactorCreate PDF Text Document
PriceFreeFree
Rating4.5 (719 ratings) — better—
Positive reviews75.6% of reviews—
Number of ratings719 — better—
Update frequencyWeekly — betterEvery 5 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size97 MB42 MB
Age rating12+4+
DeveloperAlexey NenastyevFelipe Reitz

In-app purchases

6 purchases

Language Reactor

Subscriptions6
  • PlayLingo PRO$2.997 Days
  • Pro Weekly$3.997 Days
  • PlayLingo Pro$11.901 Month
Show 3 more
  • PlayLingo PRO$34.996 Months
  • PlayLingo Pro3 Days trial2 variants$74.991 Year
  • PlayLingo Pro Family$119.991 Year
1 purchases

Create PDF Text Document

One-time1
  • Remove Ads$2.99

Questions

Is Language Reactor free?
Language Reactor is free to download, with in-app purchases available.
Is Create PDF Text Document free?
Create PDF Text Document is free to download, with in-app purchases available.
Do Language Reactor or Create PDF Text Document have ads?
Create PDF Text Document shows ads; Language Reactor does not.
Which is updated more often, Language Reactor or Create PDF Text Document?
Language Reactor ships an update weekly, and Create PDF Text Document every 5 weeks. Most recently, Language Reactor was updated on September 29, 2026 and Create PDF Text Document on September 22, 2026.

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