Nullgram is a free and open-source third-party Telegram client for Android. It is based on the official source code for Telegram App for Android, as well as NekoX and Nekogram. The developer, James Clef, created Nullgram to integrate the functions of both NekoX and Nekogram and to avoid the problems caused by the fragmentation of their communities and the issues with their main developers.

The name Nullgram comes from the programming term "null," which means an uninitialized, undefined, empty, or meaningless value. The purpose of Nullgram is to provide a client that does not push FCM-Notification "nmsl" or send political spam or ads to channels, compete maliciously, or publish malicious rumors about competitors. The app icon is from the internet, and the developer has provided a DMCA link for any copyright issues.

Nullgram offers a reliable and secure experience for Telegram users on Android, with no hidden agenda or unwanted notifications.