Yes, Jewel Universe is completely free and it doesn't have any in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
Jewel Universe is free.
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Game is ok. Once you max on the characters for the level, then you earn enough for the next level. However, once you pay to level up, it makes you start over again with zero money. Would be nice to keep the money we already earned. Maybe have more than one color per level. (Or have I not got that far yet?)
