Keep the writing flow

Translate while typing on iPhone

Write first, tap translate, and review the result where the conversation is happening—without a copy-and-paste loop.

Made for iPhone and iPad

LingoKey translation controls on an iPhone keyboard

Type before you translate

LingoKey does not silently transform each keystroke. You write the thought you want to express, then choose when to request the translation. That makes the action visible and keeps you in control of the selected text.

The practical flow is:

  1. Confirm the source and target direction above the keys.
  2. Write the complete thought in the current text field.
  3. Choose Instant or Professional mode and, if needed, a writing style.
  4. Tap translate.
  5. Read the inserted result before sending.

Review the result in context

Translation appears above the keyboard where you can read it next to the conversation. For important communication, check names, numbers, dates, and specialized terms before inserting or sending the result.

LingoKey can sound fluent while still misunderstanding an abbreviation, private joke, industry term, or ambiguous pronoun. A clear source sentence usually gives the translation service more context than a fragment.

Choose speed or polish

Use Instant mode for quick exchanges. Use Professional mode when tone and phrasing deserve extra attention. Writing styles can further adapt the result for natural, formal, casual, business, or social communication.

Changing the style does not change the language pair. For example, you can keep English to French selected and compare a Natural result with a more Formal one.

Undo when the context is unchanged

If you change your mind immediately after inserting a translation, LingoKey can restore the original text while the surrounding document context still matches. If another edit changes that context, the keyboard avoids replacing unrelated text.

Translate text you did not write

“Translate while typing” covers outgoing drafts. For an incoming message, copy the text and open LingoKey’s clipboard translation panel instead. The clipboard action is explicit and remains separate from normal keyboard input.

Where the workflow can change

Third-party keyboards work only where iOS and the host app allow them. Password fields, certain specialized fields, and apps that disable extensions may show Apple’s keyboard. Translation also needs Full Access and an internet connection. If the action does not start, check those two conditions before reinstalling the app.

See the full LingoKey setup and workflow.

FAQ

Frequently asked questions

Does LingoKey translate every character live?

No. You type the text and explicitly request a translation. This gives you control over what is sent and when the result replaces or accompanies your text.

Can I undo a translation?

LingoKey includes an undo action when the surrounding text context has not changed.

Which mode should I use?

Instant mode is best for fast conversation. Professional mode is intended for wording that should sound more polished and natural.

LingoKey

Make translation part of typing

Download LingoKey and keep your next multilingual message in one place.

Download on the App Store
Last reviewed: July 24, 2026