One Chat 3.3 Multilangual Mac OS X

One Chat combines chat and messaging services into one simple Mac application. WhatsApp, Facebook Messenger, Hangouts, Telegram, Skype, Slack, WeChat, Twitter, YahooChat, ICQ chat, HipChat, Discord, GroupMe and QQ.

Use it for the following messenger and chat like a boss:-
WhatsApp, Facebook Messenger, Hangouts, Telegram, Skype, Slack, WeChat, Twitter, YahooChat, ICQ chat, HipChat,Discord, GroupMe and QQ.

Features:
Send and receive Photos, Videos, doc, PDF..etc
Use Multiple parallel accounts of any service.
Get respective Notifications alerts and reply from the same.
Customize messaging service order in the side menu.
FaceTime calling from WhatsApp & Telegram numbers.
Customize notification as per your requirement.
Shows notifications badges for individual services.
Check if there are any unread messages, right in the menu bar.
Go Full-screen! Chat with your friends, distraction free in the full-screen mode.
Lightweight all, with minimum installation size.
Retina Display enabled icons
Easy to use user-interface(UI) and user-experience(UX)

What's New in Version 3.3
▸▸ Schedule message to send them later.
▸ Added New messaging services Yahoo Chat, ICQ, Discord, Groupme, QQ, Messenger for Facebook Pages.
▸ Major bug fixes requested by users.
▸ Notifications optimised.

Improvements in Previous versions:
▸ FaceTime calling from WhatsApp
▸ FaceTime calling from Telegram
▸ Added Touch bar support for New MacBook Pro(2016)
▸ Improvements in User Interface
▸ Improved user preferences for more customisations
▸ Fixed Skype calling plugin.
▸▸ Multiple (Unlimited) Accounts for all messaging services.(hope you love it)
▸ Individual Notifications for every accounts added
▸ Rearrange messaging services on the menu.
▸ Fixed shortcuts keys.
▸ Added indicator for file download.
▸ Fixed network connection status.
▸ Take video and selfie from WhatsApp.
▸ Notification Badges for individual chats services.
▸ Added Twitter service
▸ Loading issue resolved
▸ Fixed Hangouts and Skype calling.
▸ Fixed upload of media, docs and other files from the folder.
▸ Added more services, Google Hangouts, HipChat, WeChat
▸ Supports New MacOS Sierra Version: 10.12
▸ Password Protection for privacy
▸ Now use two different accounts of every service(messenger)
▸ Add/Remove services from the left menu, as per the requirement.
▸ Customise Notifications as per different accounts.
▸ Fixed Media(Picture, Video or music) upload and download issue.
▸ Fixed URL click issue in Facebook messenger.

Under the hood improvements:
▸ Avg. CPU reduced from 10% to 3%
▸ Avg. Energy consumption reduced from High to Zero

Features in next version:
▸ More messaging services. (Line, Kik, Linkedin, wire, Tinder, Tumbler, XXMP, Steam, Grape)
▸ And many more surprises.

Compatibility: OS X 10.10 or later, 64-bit processor

Home Page - http://appyogi.com/apps/one-chat-all-in-one-messenger/