For bug reports, feature requests, or any question. Please include your device model and iOS version so we can help faster.
[email protected]Enjoying Lengio? An App Store review helps other learners discover the app — and takes less than a minute to write.
Write a review on the App StoreIncluding the following details speeds up our response significantly:
Answers to the most common questions about using Lengio.
Lengio is free to download and free to use every day, with no account and no ads. The free tier covers one language, five new lessons and three practice sessions a day, ten AI Chat Coach messages, the first few conversation videos, three cultural notes, and the first 100 words of each category.
Lengio Plus removes those limits and adds the rest: all 25 languages, the full lesson path beyond the beginner arc, the entire vocabulary catalogue, every conversation video, unlimited AI conversations, all six games, card customisation, cloud backup, voice selection, and your full statistics history.
Plus is available monthly, annually, or as a one-time lifetime purchase. Prices are shown in your own currency inside the app before you confirm anything, and any free-trial terms appear on the same screen. Everything is billed by Apple — manage or cancel under Settings → Apple ID → Subscriptions on your device.
Yes — Settings → Share Usage Data inside the app. Switching it off stops collection immediately and discards anything still queued on your device. Nothing in the app behaves differently either way.
Lengio records anonymous events like which screens are opened and which lessons are finished, so we can see what to build next. There is no name, email, advertising identifier, IP address, or location attached, and no third-party analytics SDK is involved. The full detail is in our Privacy Policy.
Most of Lengio works without a connection. Lessons, practice, games, reviewing vocabulary, the widget, and attaching your own photos all function locally once a language pack is downloaded.
A connection is required for: downloading a language pack or fresh content, streaming a conversation video, the AI speech partner (which reaches our AI service in real time), the in-app image search, and App Store updates.
Open Lengio, go to Settings, and tap Language Packs. Select the language you want and tap Download. We recommend using Wi-Fi, as packs can be several hundred megabytes. Once downloaded, all content is available offline.
With Lengio Plus, yes — all 25 languages are unlocked and you switch between them from the language selector on the home screen. Progress, bookmarks, and daily streaks are tracked separately per language, so nothing is lost when you switch back and forth.
The free tier covers one language, which is the one you pick during setup. You can change it later, but doing so resets your study progress, so Plus is the way to genuinely learn two at once.
Custom card images are a Lengio Plus feature. On the free tier, tapping a word's picture shows a Custom images — Plus option instead.
With Plus, open any word's card and tap its picture. The menu offers Add from Library (or Replace from Library once an image is set), Search the Web, and Remove Image.
Images from your library are stored on your device and are never uploaded or shared. Search the Web opens Google Image Search in an in-app browser, so your search term goes to Google — the picture you pick is still saved only on your device.
Long-press your iPhone home screen until icons begin to jiggle. Tap the + button in the top-left corner, search for Lengio, and select a widget size. The widget displays your word of the day and daily phrase and refreshes automatically.
Streaks reset if a day is skipped — but your vocabulary progress, bookmarks, and completed words are never deleted. You can continue exactly where you left off; the streak is simply a motivational layer on top of your real progress.
Go to Settings → Study → Words per Session inside the app and choose 10, 20, or 50. Lengio uses that number to pace how many new words each session introduces, and it fills the daily-goal ring on the Home screen.
All Lengio data lives on your device. To remove it:
If your device backs up to iCloud, Lengio data may be included. Manage this in your iOS iCloud settings.
All purchases are processed by Apple. To request a refund, visit reportaproblem.apple.com, sign in with your Apple ID, locate the Lengio purchase, and select Request a Refund. Apple typically processes refunds within 48 hours.
Lengio requires iOS 17 or later. It runs on iPhone and iPad. Home screen and lock screen widgets are available on iPhone.
Lengio is rated 4+ on the App Store and contains no objectionable content. However, we do not market the app to children under 13, and there are no features specifically designed for that age group.
Absolutely. Send language and feature suggestions to [email protected] with "Feature Request" in the subject line. We read all submissions, though we can't commit to timelines for specific requests.