BetterSend vs Grammarly
Grammarly alternative for WhatsApp
On the phone, Grammarly's keyboard works in WhatsApp, and Grammarly names WhatsApp on its Android page. On a computer, Grammarly does not name WhatsApp Web or the WhatsApp desktop app in its supported-apps articles, so test it before relying on it. BetterSend adds Improve, Translate and Explain buttons in WhatsApp Web and works inside the native WhatsApp app on macOS and Windows, with 13 tones and drafts in any language.
By Rubens Jr, Founder of BetterSend
Grammarly checks what you type in most browsers, in its Windows and Mac apps, and through its iOS and Android keyboards. Its Android page lists WhatsApp among the apps it works in. Its desktop support articles name Slack, Discord and Apple Mail and say the desktop app covers "most native apps", but WhatsApp is not on those lists.
BetterSend was built for chat. Its Chrome extension adds an Improve button to the WhatsApp Web composer and a Translate button under each message, and its desktop app works inside the native WhatsApp app on macOS and Windows. You write in whatever language is fastest, pick a tone, and get the message back in natural English, or in another language if you choose one.
BetterSend is for
People who use WhatsApp on a computer for work and want to rewrite, translate and understand messages without copying them elsewhere.
Grammarly is for
People who mostly type WhatsApp messages on their phone in English and want spelling and grammar checked as they type.
| Feature | BetterSend | Grammarly |
|---|---|---|
| WhatsApp on the phone | No mobile app. BetterSend works on a computer only. | Yes. The Grammarly keyboard works in phone apps, and its Android page names WhatsApp. This is where Grammarly is clearly ahead. |
| WhatsApp Web | Improve button in the composer and Translate and Explain buttons under each message. | Not named on Grammarly's "where Grammarly works" page or in its supported-apps article. Its browser extension attaches to many text fields; test it in WhatsApp Web. |
| WhatsApp desktop app | Yes. The desktop app for macOS and Windows adds a chip to the composer and lets you double-click a message to translate or explain it. | Grammarly says its Windows and Mac apps cover most native apps and names Slack and Discord, but not WhatsApp. |
| How it is triggered | On demand. Nothing happens until you press Improve, Translate or Explain. | Passive underlines and suggestions while you type. |
| Tones and drafts in another language | 13 tones, 3 of them free. Write the draft in any language and get English back in the chosen tone. | A tone detector on the free plan; tone adjustment and full-sentence rewrites on Pro. It corrects the language you write in rather than turning it into English. |
| Free plan | Free plan: 50 actions per month and 3 tones (Professional, Friendly, Grammar fix). | Free plan: spelling and grammar corrections, a tone detector, and 100 AI prompts per month. Full-sentence rewrites and one-click tone adjustment are Pro. |
| Price | Pro is US$ 4.99 per month or US$ 39.99 per year as of October 2026, with all 13 tones and unlimited actions. In Brazil, Pix: 6 months for the price of 4 (R$ 99.60). | Free plan at US$ 0. Pro at US$ 12 per member per month billed annually, or US$ 30 billed monthly, as of October 2026. |
| Privacy | Message text is never stored; only metadata such as the action type and token count. Nothing is sent on your behalf; you always choose what to send. | Grammarly reads what you type in order to check it. Read its privacy policy before using it on private chats. |
Verdict
If you write WhatsApp messages on your phone, Grammarly's keyboard is the better pick and BetterSend cannot help there. If you use WhatsApp Web or the WhatsApp desktop app for work, BetterSend is built into both, rewrites in 13 tones from any language, translates the messages you receive, and costs US$ 4.99 per month against Grammarly Pro's US$ 12.
Common questions
Does Grammarly work in WhatsApp Web?
Grammarly does not name WhatsApp Web on its supported-apps pages as of October 2026. Its extension attaches to many text fields, so try it yourself before relying on it.
Does BetterSend work in the WhatsApp desktop app?
Yes. The BetterSend desktop app for macOS and Windows works inside the native WhatsApp app: a chip in the composer to improve your draft, and a double-click on a message to translate or explain it.
Does BetterSend work on WhatsApp on my phone?
No. BetterSend runs in Chrome and in its desktop app. On the phone, Grammarly's keyboard is the option.
Find the right tone in one click
Get the desktop app for macOS or Windows, or install the Chrome extension. Same account, the same 13 tones.
Sources
- BetterSend (checked 2026-10-06)
- Grammarly for Android (checked 2026-10-16)
- Grammarly support: Grammarly with other apps (checked 2026-10-16)
- Grammarly support: supported browsers and apps (checked 2026-10-16)
- Where Grammarly works (checked 2026-10-16)
- Grammarly plans (checked 2026-10-16)