PrompTune is an AI-powered writing tool that can help users optimize their writing content in seconds. Its main features include: 1. Providing high-quality writing suggestions; 2. Automatically correcting grammar and spelling errors; 3. Offering various writing style choices; 4. Supporting multiple languages. Its advantages lie in: 1. Improving writing efficiency and quality; 2. Saving time and effort; 3. Applicability to various writing scenarios. The pricing plan is divided into a free trial and paid packages, with the price of paid packages varying depending on the usage time and feature level.