textFX is a free iPhone app developed by Freewill FX Co. Ltd. It falls under the Multimedia category and allows users to easily add descriptive text to their photos using various beautiful Thai fonts. With textFX, you can enhance your photos by adding Thai captions, quotes, or messages in different styles and fonts.

The app provides a user-friendly interface that allows you to select the desired photo from your gallery or take a new one. You can then choose from a wide range of Thai fonts to add text to your photo. textFX also offers the option to share your edited photos directly to social media platforms like Facebook, Twitter, and Instagram.

Please note that while most of the Thai fonts in textFX are compatible with English text, some fonts may not support English characters, resulting in the disappearance of English text.