Jetwriter AI: Reply Emails, Ask Page, Summarize, Fix Grammar, and More vs Justdone: GPT-4o AI Writing Assistant & Grammar Checker
Jetwriter AI: Reply Emails, Ask Page, Summarize, Fix Grammar, and More and Justdone: GPT-4o AI Writing Assistant & Grammar Checker both compete in the same corner of the Chrome Web Store (grammar), but they are built for different users. Jetwriter AI: Reply Emails, Ask Page, Summarize, Fix Grammar, and More has roughly 500K users and a 4.6-star average; Justdone: GPT-4o AI Writing Assistant & Grammar Checker sits at about 200K users with 3.7 stars.
Jetwriter AI: Reply Emails, Ask Page, Summarize, Fix Grammar, and More
4.6Write emails & messages, chat with page, improve writing, translate, and do much more. Powered by the most intelligent AI models
Justdone: GPT-4o AI Writing Assistant & Grammar Checker
Elevate your writing with Justdone — your all-in-one tool for grammar checking, paraphrasing, AI writing, and more.
Side-by-side comparison
| Jetwriter AI: Reply Emails, Ask Page, Summarize, Fix Grammar, and More | Justdone: GPT-4o AI Writing Assistant & Grammar Checker | |
|---|---|---|
| Rating | 4.6 / 5 | — |
| Reviews | 1,400 | — |
| Users | ~500K+ | — |
| Pricing | Free | Free |
| Category | Productivity | Writing |
| Developer | jetwriter.ai | https://justdone.com |
| Last updated | 2026-08-24 | 2026-09-06 |
| Best for | Write emails & messages, chat with page, improve writing, translate, and do much more. Powered by the most intelligent AI models | Elevate your writing with Justdone — your all-in-one tool for grammar checking, paraphrasing, AI writing, and more. |
Final recommendation
Pick Jetwriter AI: Reply Emails, Ask Page, Summarize, Fix Grammar, and More — it leads on both installs and review scores.
Frequently asked questions
Can I install Jetwriter AI: Reply Emails, Ask Page, Summarize, Fix Grammar, and More and Justdone: GPT-4o AI Writing Assistant & Grammar Checker at the same time?
Yes, Chrome runs them independently. Keep both only if they do different jobs; if they overlap, pick one, because each active extension adds memory use, page scripts and another set of permissions.
Where do the ratings and install numbers come from?
From each extension's public Chrome Web Store listing. They can lag the live store slightly, and a dash means the figures have not been synced yet.
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