# Retain App: Core Features

**Categories:** Getting started

**Published:** December 8, 2025

---

```markdown
| Feature | Description |
|--------|-------------|
| [Calendar Integration](/help/article/retain-app-calendar-guide) | Track your schedule more easily |
| [AI Email Reader](/help/article/retain-app-email-management-guide) | Extract deep knowledge from your emails |
| [Meeting Notetaker](/help/article/retain-app-how-to-capture-meetings-with-retain) | Create your AI knowledge base from your meetings |
| [Effective Emails](/help/article/write-more-effective-emails-expertise) | Write clearer, more impactful emails using AI suggestions |
| [Doc Editor](/help/article/retain-compose-emails-using-ai) | Write emails more effectively using your knowledge base |
```