When comparing HootSuite vs Twicca, the Slant community recommends HootSuite for most people. In the question“What are the best Twitter clients for Android?” HootSuite is ranked 4th while Twicca is ranked 7th. The most important reason people chose HootSuite is:
HootSuite gathers activity from numerous social networks into a dashboard display. Activity can be filtered into separate streams, and those streams can be arranged across multiple tabs.
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Pros

Pro Customizable feed aggregation
HootSuite gathers activity from numerous social networks into a dashboard display. Activity can be filtered into separate streams, and those streams can be arranged across multiple tabs.

Pro Large list of supported networks
In addition to Twitter, Facebook and LinkedIn, HootSuite supports many networks not covered by similar services; examples include YouTube, Tumblr, Foursquare and MySpace.

Pro Automated post scheduling recommendations
When scheduling a post, HootSuite recommends a time to post for maximum viewership. This can be overridden.
Pro Plug-in support
Twicca supports an ever-growing list of plugins that extend the apps functionality.
Pro Light on system resources
Can be run even on older Android devices.
Pro Color-coding
Allows color-coding lists and users.
Pro Minimalist design
Twicca removes all the clutter and keeps things clean.
Pro Mute function
Allows hiding a persons tweets from timeline without unfollowing them.
Pro Multiple user support
Allows easy switching of accounts withing the app.
Pro Built-in image viewer
Allows viewing images without having to leave the application.
Cons

Con Steep learning curve
HootSuite is notoriously complex, and their HootSuite University learning resource is a paid premium feature.
Con Outdated design
Hasn't been updated for years.
