When comparing Flow Free vs Roll the Ball, the Slant community recommends Flow Free for most people. In the question“What are the best puzzle games on Android that a completionist could obsess over?” Flow Free is ranked 2nd while Roll the Ball is ranked 4th. The most important reason people chose Flow Free is:
You can aim to complete every level but there is also an additional star on each level for completing in minimum moves which can be easily attained if missed by replaying levels.
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Pros
Pro Different completion levels
You can aim to complete every level but there is also an additional star on each level for completing in minimum moves which can be easily attained if missed by replaying levels.
Pro Free play
Supported by adverts but if you choose to buy additional level packs to support the developers then these are removed.
Pro Lengthy gameplay thanks to extra tasks
Levels can be completed with star ratings for minimum moves, specific pieces etc. This makes for a good reason to revisit levels in order to complete all tasks.
Cons
Con Too many advertisements
While the in game banner ads do not really detract from the gameplay, there are full screen ads that interrupt play every so many levels, which takes the player out of the game. Purchasing any in game item such as more levels or themes, the ads will be removed, but for those that would like to play for free, the full screen ads may be something to consider.
Con Too many advertisements
The game is free but there are a lot of advertisements contained within. This detracts from the beauty of the game as well as the gameplay itself.