How to ask AI to write a message in any app on iPhone
Switching to a chatbot, typing a prompt, copying the answer and switching back takes longer than writing the message yourself. With an AI keyboard you type what you need right where the text should go, and the result lands there.
Set up GKeyboard (about a minute)
- Install GKeyboard from the App Store and open it. It is free and there is nothing to sign up for.
- Open Settings → General → Keyboard → Keyboards → Add New Keyboard and choose GKeyboard.
- Tap GKeyboard in that list and turn on Allow Full Access. iOS asks this of every keyboard that connects to the internet, and GKeyboard needs it to fetch AI suggestions. Without it you still get the keyboard, autocorrect and word suggestions.
- In any app, touch and hold the globe key below the letters and pick GKeyboard.
The app walks you through the same steps when you first open it.
Ask AI to write something
- In the text box where the message should go, type what you need, for example "a polite reminder about the invoice" or "a short thank-you note for my team".
- Tap ✦ above the keys to open the AI panel and tap Ask AI.
- Read the draft. Tap to use it and it replaces your request in the text box.
- Edit anything you want to change, then send.
Keep writing from where you stopped
Started a message and stuck on the next line? Tap Continue in the same panel and GKeyboard writes the next sentence after your text.
Then adjust it
- Too long? Shorten. Too blunt? Friendly or Kind. For work, Formal. The tone guide covers every style.
- Need it in another language? Translate it into any of 22 languages.
- Answering a message rather than starting one? Copy it and use Reply instead (see the reply guide).
Tips for better results
- Say who it is for and the tone: "a friendly note to my neighbour about the parcel".
- Include the facts that matter, like dates, amounts and names. AI cannot know them.
- Always read the draft before sending, especially names, dates and numbers.
What it costs
Ask AI is free, with a daily allowance shared with rewrites, translation and reply suggestions that resets at midnight. GKeyboard Pro raises it to 300 a day (A$2.99 a month or A$19.99 a year in Australia; the App Store shows your local price).
What happens to your text
- There is no account: no name, email or phone number.
- Autocorrect, word suggestions and spell check run on your iPhone.
- With Full Access on, the text you are writing in the current field is sent over an encrypted connection to the GKeyboard server, which passes it to OpenAI to make the suggestion. That can be the whole message around your cursor, not just one sentence.
- The GKeyboard server does not store that text and filters it out of its logs.
- The AI switches off in password, email, URL, number, one-time code and credit card fields.
- Turn off Full Access at any time and GKeyboard sends nothing; it keeps working as an on-device keyboard.
The privacy policy has the details.
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