What are some alternatives?
When comparing FlashScore and SizeUp, you can also consider the following products
SofaScore live score - Football live scores on SofaScore livescore from 600+ soccer leagues. Follow live results, statistics, league tables, fixtures and videos from Champions League.
Hammerspoon - This is a tool for powerful automation of OS X.
LiveScore - Application that comes directly from LiveScore Ltd.
Moom - Move your mouse over the green zoom button in any window, and Moom's mouse control overlay will appear (as seen in the above animation).
FotMob - The best LIVE-coverage available. News feed, tables and much more.
Divvy - Divvy is an entirely new way of managing your workspace.