When comparing Snowball vs Trillian, the Slant community recommends Snowball for most people. In the question“What are the best unified messenger apps?” Snowball is ranked 9th while Trillian is ranked 12th. The most important reason people chose Snowball is:
Snowball supports Facebook Messenger, WhatsApp, Snapchat, SMS, Hangouts, Twitter, Line, WeChat, Slack, Telegram, Viber, Hike, BBM, Kik, GroupMe, Kakao and Skype.
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Pros
Pro Extensive client support
Snowball supports Facebook Messenger, WhatsApp, Snapchat, SMS, Hangouts, Twitter, Line, WeChat, Slack, Telegram, Viber, Hike, BBM, Kik, GroupMe, Kakao and Skype.
Pro In-house server support
You can set up a dedicated server to hold your communications. Great for businesses that want to build their own infrastructure.
Pro Multiple networks in one place
Among them Yahoo!, Facebook, Skype, Google, AIM, ICQ, XMPP, MSN. You can have multiple accounts associated with each service.
Pro Group chat
Trillian to Trillian group chat is available.
Cons
Con Not standalone
Snowball requires (some of) the original apps to be installed. This also affects resource usage as the app uses ram for itself plus the ram used by the other apps.