Last updated: October 7, 2026
Keylingual is a keyboard app for people learning a language. By using it you agree to these terms.
Word suggestions, translations above suggestions, themes, statistics and the vocabulary record are free and work on your device without an account.
Whole-sentence translation requires a Keylingual account and an internet connection. Free accounts can translate up to 10 sentences a day. Translations are produced by an automated service and may contain mistakes; check anything important before you send it.
Keylingual Pro is an auto-renewable subscription, billed monthly or yearly through your Apple ID, that removes the daily limit on sentence translations for personal use. To protect the service from automated abuse, requests beyond 2,000 sentences in a day may be refused. Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the end of the period. You can manage or cancel the subscription in your Apple ID settings. Prices may vary by country and are shown in the app before you buy.
Do not use the translation service for bulk or automated translation, or to send abusive content. We may suspend accounts that abuse the service.
We may update these terms; the app will show the current version. Questions: jiayingxue0@gmail.com. The privacy policy is at privacy.html.