English Grammar Master - English Grammar Master app is an offline grammar guide that allows users to master their English grammar skills by learning about a large number of topics and techniques.

PDFCrowd - Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.

EssayToolBox - EssayToolBox features lots of tools that checks any writing for grammar and spelling mistakes, detect plagiarism, brainstorms ideas, generates summaries and conclusion, counts words, and much more.

DocRaptor - As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more

English Essays by Urva Apps - English Essays is an app by Urva Apps that contains features so you can access a complete guide to learn about how to write an essay by using professional tips right at your fingertips.

PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request