Nekogram is a third-party Telegram client with not many but useful modifications.

Appearance
Use your avatar as drawer header background, use system emojis, let the status bar be transparent, and more.

Chats
Set sticker size, let folders be shown on the forward page, and pause video automatically when switched to the background.

Translator
Translate messages and articles, with multiple translation engines to choose from.

More
The above is only a small part of the features, for more features, please download and check it out.

Official Channel
https://t.me/nekoupdates

Pure instant messaging — simple, fast, secure, and synced across all your devices. 
FAST:  the fastest messaging app on the market, connecting people via a unique, distributed network of data centers around the globe.
SYNCED: You can access your messages from all your phones, tablets and computers at once.
UNLIMITED: You can send media and files, without any limits on their type and size. Your entire chat history will require no disk space on your device, and will be securely stored in cloud for as long as you need it.
POWERFUL: You can create group chats with up to 200,000 members, share large videos, documents of any type (.DOCX, .MP3, .ZIP, etc.) up to 2 GB each, and even set up bots for specific tasks.
FUN: Powerful photo and video editing tools, animated stickers and emoji, fully customizable themes to change the appearance of your app, and an open sticker/GIF platform to cater to all your expressive needs.
SIMPLE: While providing an unprecedented array of features, we take great care to keep the interface clean.

Nekogram is an unofficial messaging app that uses Telegram's API.