SENTENCIFY (BOOKEND INC.)

People writing emails, academic papers, business communications, and everyday messages need to check grammar, tone, and phrasing, but doing so often means switching to a separate app or website and breaking their writing flow. Existing AI writing tools tend to focus narrowly on spellcheck or basic sentence polishing, and using them interrupts the writer's work by requiring tab changes or copying text elsewhere. This disrupts concentration and can cause AI edits to override the writer's own intent and voice. Academic writers also face specific needs like meeting word counts or paraphrasing to avoid plagiarism, which generic tools may not address well within their normal workflow.

Sentencify is an AI writing correction and paraphrasing service that can be summoned instantly inside any program, such as MS Word, Notion, or Slack, using the shortcut Ctrl+C+C, without needing to open a separate app. It corrects spelling and awkward phrasing while aiming to preserve the writer's original intent and reasoning rather than overwriting it. Users can adjust tone (formal or casual), expand or shorten text, paraphrase to avoid plagiarism, translate into other languages, and save frequently used writing styles as presets for one-click reuse. A custom prompt feature (MyPrompt) allows specific or domain-focused correction requests, and the tool can be pinned to the side of the screen or expanded to full view. The company states it does not allow third-party service providers to use user content to train models.