The Question: Given a freemium model (ad-supported with in-app-purchase of additional levels/hints)... are chances of overall success better with a single puzzle app with lots (but varied) levels/playing-styles, OR... multiple apps, each app focused on a singular theme/playing-style?
Scenario: Our puzzle engine can support multiple types of puzzles based on the puzzle-piece styles. While the game mechanics are roughly the same, changing the puzzle piece changes the visual aesthetic of the app and gameplay somewhat. The puzzle piece imparts a theme of sorts to the puzzle. Sorry for the lack of further specifics.
I feel that multiple apps will allow us to market the different content more easily. I worry though that spreading the content over say, 4 different apps might limit the playing life of each individual app (the app content is mathematically limited). At which point you hope that cross-promotion will guide your player to the additional app/content.
Are there any precedents here? I've assumed that with the freemium model having more apps in the pipeline is always a good thing. But having your 4 apps on a single player's device sounds challenging.