ChatStats is a free iPhone application developed by Rapptor Desenvolvimento de Softwares LTDA. It falls under the lifestyle category and offers an array of features to analyze and generate statistics from your WhatsApp chat histories.

With ChatStats, you can import your chat histories and unlock up to 24 beautifully crafted statistics to share with your groups. The app allows you to generate rankings of who sends the most and the least messages, providing insights into your chat dynamics.

One of the standout features of ChatStats is the ability to create a comprehensive group overview, which displays the members of your chat, along with the number of messages, pictures, videos, voice messages, and stickers sent by each member. This overview gives you a clear picture of the engagement levels within your chat.

Additionally, ChatStats allows you to inspect the distribution of messages on a weekly and hourly basis through intuitive bar or radar plots. This feature helps you identify the peak times of activity in your chat.

If you're curious about who sends the longest messages, ChatStats has got you covered. The app enables you to identify and analyze the individuals who send the most extensive messages, giving you a deeper understanding of communication patterns.

Furthermore, ChatStats lets you create champions and rankings for each media type, including pictures, videos, voice messages, and stickers. This feature adds a fun and competitive element to your chat experience.

Lastly, ChatStats helps you discover who sends the most links and emojis in your chat, allowing you to uncover the most active and expressive participants.

Overall, ChatStats is a comprehensive and visually appealing application that offers a range of statistics to analyze your WhatsApp chat histories. Whether you want to gain insights into your group dynamics or simply add some excitement to your chat experience, ChatStats is a valuable tool to have.