Nice Gram, developed by Sorena Developer Team, is an unofficial messaging app that uses the Telegram API. It is a free social and communication app that has added several features to the official Telegram messenger.

One of the key features of Nice Gram is the ability to customize the app's theme. Users can change the color and size of many objects, texts, symbols, titles, bubbles, and more. They can even create their own theme, save it, and easily share it with friends. Additionally, users can use themes shared by other users.

Nice Gram has also added new media features. Audio files can be easily shared from the chat screen, and now stickers are also supported. Users can save documents with their original name and display sender names on images, videos, and documents.

Furthermore, Nice Gram offers enhanced security features. Users can hide their mobile phone numbers through the drop-down menu and settings section. The app also allows users to send messages to others without quotes and show phone emojis.

Overall, Nice Gram is a great option for users who want to use the Telegram API with additional customization options and features.