Quick verdict
- What it is
- Store information collected; independent summary not yet available.
- At a glance
-
- From $0.99/mo
- Free to download
- In-app purchases
Categories and search queries
Official categories
- Education
- Books
AppCorpus categories
Key functions
| Function | Availability | Access | Scope | Evidence |
|---|---|---|---|---|
| Free app | Yes | Free | — | Store published |
| In-app purchases | Yes | Limited free | — | Store published |
Screens
App Store
5 store screenshots
Pricing & paywalls
App Store
- Monthly Subscription — $0.99/month
- Monthly Subscription — $3.99/week
- One-Time Purchase — $29.99
Ratings & reviews
App Store
No store reviews collected for App Store · US
Privacy & accessibility
App Store
Privacy
- Data Not Linked to You — Analytics — Purchases — Purchase History Developer declared
- Data Not Linked to You — App Functionality — Identifiers — User ID Developer declared
- Data Not Linked to You — App Functionality — Purchases — Purchase History Developer declared
- Data Not Linked to You — Identifiers Developer declared
- Data Not Linked to You — Purchases Developer declared
Accessibility
No accessibility labels collected yet.
Versions
App Store
- 1.0
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1.1
-Major redesign of user interface -Major overhaul of achievements -Added new page tracking by days of the month -Tutorial overhaul -Various optimizations
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1.2
-Added support for Swedish, Czech, and Hungarian -Book text can now be edited from the Library -Significant improvement in Reader loading times (mostly affects users with personal Dictionaries over 10,000 words) -Significant improvement in tab loading times -Various optimizations -Various bug fixes -Some UI elements now include iOS 26 UI support
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1.21
-fixed an issue where Czech, Hungarian, and Swedish were not correctly opening definitions in the Dictionary tab -various bug fixes
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1.30
-New Introduction on first use which is also available for review from Settings -"Go Premium" button would occasionally show in error even if the user already had Premium
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1.31
-Fixed History not correctly displaying reading history from 2025
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2.0
Version 2.0 -All languages now have a local dictionary available for definitions and translations -Millions of words can now be looked up completely offline -Local/offline lookups are now default, online dictionary is still available in the Reader settings for more extensive searches -Significant improvements in navigation speed in the Library and Dictionary tabs -New light and dark themed dictionary popups viewable in Introduction, Dictionary, and the Reader -Introduction onboarding now contains a progress indicator -Introduction onboarding now tracks unknown/known/learning/ignore -Various improvements to Introduction onboarding -News and announcements can now be seen in real time by pressing What's New? button found on the Home screen -Checking German nouns no longer requires an internet connection -User ID can now be checked locally by the user for debugging -Bug fixed where changing light/dark mode would not save from inside the Reader -Bug fixed where if language was switched from German, it may cause the Dictionary tab to hang -Bug fixed in Reader where certain accented characters were not always found by setting the word to Ignore -Various bug fixes and improvements
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2.1
-Added ability to change language and type of lookups in Settings -Bug fixed where local lookup database would not be available for download if you switched language and immediately tried to go to Settings to download it -Bug fixed where local lookup database would not open if language was switched to languages besides German -Bug fixed where Reader tutorial would not open on first use -Bug fixed where local dictionary links that were empty would not show the correct word -Bug fixed where the local dictionary would not scroll back to top after pressing the Back button -Various other bug fixes and improvements
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2.2
Version 2.2 -Fixed a bug where changing the lookup selection in the Settings tab would not save -Various visual improvements
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2.3
Version 2.3 -Added time saving estimation to onboarding Introduction -Various visual improvements to onboarding Introduction -Added button to local dictionary lookups that allows text selecting and translating of definitions -Fixed a bug where the clipboard close button would occasionally cover text -Fixed a bug where editing a large book would lead to significant slowdown -Fixed a bug where occasionally the local dictionary would not specify the word that could not be found -Various improvements
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2.4
Version 2.4 -Adding books is now much quicker for Lenglio Premium users with a new menu in the Library -Various improvements to the onboarding Introduction -Updated the Russian local lookups database to include more accurate links -Fixed a bug causing Russian local lookups to not link to words correctly -Fixed a bug where the screen would rarely freeze while editing books -Fixed a bug where creating or editing a book may rarely save an empty book -Various improvements
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2.5
Version 2.5 -Users can now extract text from EPUB and PDF files to add to their library (PDF needs to be digital PDF with text and not scan/image PDF) -Fixed a bug where if the title of a book was too long, it would be impossible to edit -Various visual improvements and bug fixes
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2.6
Version 2.6 -Improved EPUB compatibility for text extraction
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2.7
Version 2.7 -Free users can now have up to 5 books in their Library, increased from 1 book in previous versions -Library speed has significantly increased and no longer waits to load, loading is almost instant and the known/learning calculations have been completely reworked to be faster and more accurate -Fixed a bug where the online dictionary could rarely navigate away from the dictionary -Fixed a bug where the last section in the book Contents would not display or scroll correctly
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2.8
· 11 Jun 2026
Version 2.8 -Various improvements to the onboarding Introduction -Improved consistency of dictionary lookup spacing for all font sizes in the Reader -Minor speed improvements -Various bug fixes and improvements
Alternatives
- Mio Translator: Live Translate — Same category + similar ratings
- Lingo Champion — Same category + similar ratings
- Vocabulary Builder - Neologics — Same category + similar ratings
Availability by market
- US
Data quality & evidence
- Page completeness
- Live store listing
- Last verified
- 7 Aug 2026
- Sources
- App Store
- Independent summary has not been published yet.