
If you searched WhatsApp grammar check or how to add grammar check in WhatsApp, you want the app to flag a bad sentence, not just a misspelled word.
WhatsApp does not have that switch. There is no Grammar item under Chats, and we cannot turn one on for you. A red or blue underline, when it appears, comes from the keyboard: Gboard on many Android phones, the Samsung keyboard, or the iPhone keyboard. WhatsApp is only the box you type in.
We are not WhatsApp Support. Downloads named “WhatsApp grammar APK” are not WhatsApp.


Paste the draft into Shmooz and ask for a cleaner line. You copy it back and send it. We cannot turn on a grammar checker inside WhatsApp.
A keyboard underline will not rewrite a clumsy message. Paste the draft into a separate chat and ask for a cleaner line in the same language. Shmooz is an AI assistant inside WhatsApp. You copy the line back and send it yourself. That does not install a grammar checker into WhatsApp.


Paste the draft into Shmooz and ask for a cleaner line. You copy it back and send it. We cannot turn on a grammar checker inside WhatsApp.
No. The setting is not in WhatsApp, so there is nothing for us to flip.
No. Spell check looks at letters in a word. Grammar is the sentence. People searching grammar were landing on the spell-check page and not clicking, because that title does not say grammar.
No. And a modified WhatsApp is a common way to get banned. Appeal only from the ban screen inside the official app.