Comparison

E vs Factopus

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

Head to head
About

E

Enhance language learning by transforming podcasts and audio into interactive study tools. Get synced transcripts, instant translations, and spaced repetition flashcards for vocabulary and phrases. Study content you already enjoy in over 20 languages.

Highlights
  • Synced audio and transcripts
  • Tap-to-translate words and phrases
  • Replay specific words/sentences
  • Notebook for saving vocabulary
  • Spaced repetition flashcards
  • Audio collections and curated shows
Features
Read full description

Take the podcasts you already listen to and make them language practice. Do the same with your own recordings and audio links. Made by language learners, for language learners. E-clair shows you the transcript while you listen, synced word by word. Tap anything you don't know for a translation, save it to your notebook, and it comes back later as a flashcard. WHAT YOU CAN STUDY • Podcasts. Subscribe to a show and study its episodes. • Your own recordings. A voice memo, a lesson with your tutor, an audiobook chapter. • Audio links. Paste a direct link to an audio file (MP3, M4A, WAV and similar) and E-clair fetches it. You're not limited to a fixed content library. E-clair works on the audio you already want to listen to, in more than 20 languages. HOW IT WORKS 1. Add a podcast episode, an audio file, or a link. 2. E-clair transcribes it with word-level timing. 3. Read along while you listen. The transcript follows the audio. 4. Tap a word or phrase to translate it. 5. Save it to your notebook and review it as a flashcard. FEATURES Transcript in sync with the audio The line you're hearing is highlighted as it plays. The timing is word by word, so you can follow along even when the speech is fast. Translate by tapping Tap a word, tap a phrase, or drag across part of a line to translate only that part. You stay in the episode the whole time. Replay one word or one sentence Press replay and only that word or sentence plays, then it stops. It's for the sentence you've rewound five times and still can't make out. Notebook Save words and phrases while you listen. Each entry keeps its translation, its position in the audio, and the episode it came from, so you can hear it in context again. Flashcards with spaced repetition Your notebook becomes review material: two-sided cards, or fill-in-the-blank cards made from sentences you actually heard. Reviews are scheduled with FSRS, a modern spaced-repetition algorithm. Cards you find hard come back sooner, cards you know come back less often, and you review in short sessions instead of re-reading everything. Collections Group episodes and recordings by show, by course, or however you organize your study. Curated shows A list of podcasts chosen for clear speech and reasonable difficulty. Their transcripts are ready the moment you open an episode. LANGUAGES E-clair transcribes more than 20 languages, including Spanish, French, German, Italian, Portuguese, Dutch, Polish, Russian, Ukrainian, Turkish, Japanese and Korean. WHO IT IS FOR People past the beginner stage. You can follow a simple conversation, but native speech at full speed is still hard to catch. If you already have podcasts you like, or recordings from your lessons, you can study those instead of working through another course. That's what E-clair does to a podcast: it turns audio that's over your head into comprehensible input. Read along, tap what you don't know, and speech at full speed becomes something you can follow. If you only want a transcript to read once, a transcription app will do the job. E-clair is built for the audio you come back to: working through the same episode, and keeping what you got out of it. QUESTIONS WE GET Does it work with any podcast? Add any show by its feed. Curated shows are already transcribed; anything else is transcribed when you open an episode. Is this comprehensible input? That's the idea. An episode that's too fast to follow becomes input you can understand, and the same episode gets easier every time you come back to it. Is it free? It's free to start. Reading, translating, saving and reviewing aren't the paid part.

About

Factopus

Features
Read full description

Learn something new in the time a coffee takes to cool. Factopus is short lessons with quick quizzes, plus a feed of facts you swipe like stories. No lectures, no homework, and the teacher is an octopus. Pick a topic, any topic: history, psychology, finance, astronomy, communication, critical thinking. Also dog training. Yes, seriously. The catalog runs 250+ courses and 1,400+ lessons, each one short enough to finish between two subway stops. WHY IT STICKS Every lesson ends with a quiz, so what you read stays read. Right answers earn stars, streaks track your pace, and a daily goal keeps those five minutes from quietly becoming zero. FOR THE SPARE MINUTE Some minutes are too short even for a short lesson. That's what the facts feed is for: 700+ standalone facts to swipe through. Battles that changed everything, what your brain does with unfinished tasks, what the Wild West looked like minus the movie gloss. A few will get retold at dinner. 29 TOPICS, ONE OCTOPUS History, Psychology, Finance, Career, Communication, Critical Thinking, Decision Making, Physics, Astronomy, Geography, Art, Literature, Philosophy, Economics, Nutrition & Health, English, Parenting, Dog Training and more. START IN THREE TAPS 1. Choose your topics. 2. Set a daily goal. 3. Do the first lesson right there. Five minutes, done. Facto, the octopus in charge, has eight arms and strong opinions about wasted minutes. He keeps your streak honest. FACTOPUS PRO A Factopus Pro subscription opens every course, lesson and fact in the library. Prices are shown in the app in your local currency before you confirm. Subscriptions renew automatically until cancelled; cancel anytime in your App Store account settings. Questions, ideas, complaints about octopus puns: support@factopus.app Terms of Service: https://factopus.app/terms.html Privacy Policy: https://factopus.app/privacy.html

Screenshots

E4 screens
Factopus4 screens

Verdict

The call

The clearest difference is in-app purchases: E at none against Factopus's 3. E also leads on update cadence (every 4 days vs every 5 weeks) and device support (3 vs 1). On price and ads 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. Factopus sells 3 in-app purchases, starting at $14.99 per month. E asks for nothing beyond the download.

UpkeepUpdate frequency

E ships an update every 4 days, Factopus every 5 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
E versus Factopus: the parameters behind the verdict, then further details
ParameterEFactopus
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 4 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size33 MB64 MB
Age rating4+12+
DeveloperMuzaffar OmerVVDev

In-app purchases

None

E

No in-app purchases

3 purchases

Factopus

Subscriptions3
  • Factopus Pro$14.991 Month
  • Factopus Pro$49.991 Year
  • Factopus Pro$69.991 Year

Questions

Is E free?
E is free to download, with no in-app purchases.
Is Factopus free?
Factopus is free to download, with in-app purchases available.
Do E or Factopus have ads?
Neither E nor Factopus shows ads.
Which is updated more often, E or Factopus?
E ships an update every 4 days, and Factopus every 5 weeks. Most recently, E was updated on November 5, 2026 and Factopus on October 31, 2026.

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