Readlang Mobile vs Readum
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Readlang Mobile
Learn languages by reading content you enjoy. Tap any word for instant translation, save new vocabulary, and track your learning progress. Offers a free plan with daily limits and a premium subscription for unlimited access and advanced features.
- Instant word and phrase translation
- Save and review translated words
- Read websites and EPUB books
- Vocabulary practice
- Progress tracking
- Distraction-free reading
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Readlang Mobile Readlang Mobile helps you learn languages naturally by reading real content you actually enjoy — books, articles, and websites. Tap any word or phrase to see an instant translation without breaking your flow. Save new words, track your progress, and build vocabulary effortlessly while reading. Key Features: • Instant word translation while reading • Phrase translation support • Save and review translated words • Clean, distraction-free reading experience • Reading statistics and progress tracking • Read websites and books directly in the app Free Plan: • 30 translations per day • Phrase translations (up to 6 words) • Access to all books and websites in the app • View basic reading statistics Premium Features: • Unlimited translations • Phrase translations (up to 12 words) • Upload and read your own EPUB books • Multiple-choice vocabulary practice • Full access to advanced reading tools Subscription Information: Readlang Mobile offers auto-renewable subscriptions: • Monthly subscription • Yearly subscription (save with annual billing) Prices may vary by location and are shown in the app. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime in your Apple ID account settings. Legal: Terms of Use: https://readlang-mobile.com/terms Privacy Policy: https://readlang-mobile.com/privacy Contact: Support: support@readlang-mobile.com Website: https://readlang-mobile.com
Readum
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Read books in another language and grow your vocabulary as you go. Readum brings together an ebook reader, contextual translations, and flashcards for review. Select an unfamiliar word, see its meaning based on the sentence, and save it to your personal dictionary. Later, reinforce new vocabulary with spaced repetition. Readum features: • 184 languages available for creating language pairs; • import your own books in EPUB format; • free classics from the Project Gutenberg catalog; • AI-powered translations of words and sentences; • save words together with their original context; • listen to word pronunciation; • flashcards for regular review; • separate dictionaries for different language pairs; • learning statistics and flexible reading settings. Read what interests you. Unfamiliar words will gradually become familiar. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://readus.app/privacy-policy
Screenshots
Verdict
The clearest difference is update cadence: Readlang Mobile at every 6 days against Readum's fortnightly. On price, ads, 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
Both are free to download. Readlang Mobile sells 2 in-app purchases, starting at $6.99 per month and Readum sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
Readlang Mobile ships an update every 6 days, Readum fortnightly. The most recent releases landed on September 24, 2026 and September 14, 2026 respectively.
| Parameter | Readlang Mobile | Readum |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 17 — better |
| Further details — not scored | ||
| Size | 35 MB | 2 MB |
| Age rating | 17+ | 17+ |
| Developer | Alisher Fayzullaev | libersave.com GmbH |
In-app purchases
Readlang Mobile
- Readly Premium Monthly$6.991 Month
- Readly Premium Yearly1 Year trial$39.991 Year
Readum
- Monthly Subscription$5.991 Month
- Annual Subscription$44.991 Year
