InstaText vs Writefull

InstaText improves writing supplied by the user for clarity, readability, grammar, and style without generating new content. Suggestions remain visible for users to accept or reject, and edits are not applied automatically. The service runs on the web and through a browser extension supporting more than 20 platforms, including Google Docs, Gmail, WhatsApp, Slack, Overleaf, Outlook, Salesforce, and WordPress. A Word add-in works with Word online and the classic version, with Track Changes for suggested revisions. Tone controls offer Auto, Formal, and Informal settings, while Personal Dictionary rules can preserve or replace specified wording. The Free plan costs nothing, allows five improvements daily and up to 1,500 characters at once, and is for personal, non-commercial use. InstaText One costs €24.99 a month billed monthly or €9.99 a month billed yearly at 119.88 € yearly, with unlimited use. The Windows desktop app is early access and requires internet; macOS is coming soon.

Writefull provides AI language feedback, writing tools, and data insights for research writing. Its language models are trained on academic texts and suggest improvements to grammar, word use, style, and phrasing. Other tools can paraphrase, change style, split or join sentences, summarize or explain text, and generate titles and abstracts. Writefull integrates with Overleaf, offering LaTeX-tailored feedback, TeXGPT, and table and equation generators. Its Microsoft Word add-in works with Windows, Mac, and Word Online. The service is available on the web, Windows, macOS, and as a browser extension. The Overleaf extension supports Chrome, Chromium, and Brave; Writefull Revise supports Chrome, Firefox, Safari, and Chromium-based Edge. Revise returns edits through Track Changes and is limited to publishers and institutions. A free plan has limited quotas for language editing and rewriting. Writefull says it does not store users’ text, use text or interactions to train its AI, or sell data to third parties. Some features use third-party APIs, with user consent requested before text is sent.