We wrote about the Medieval Math Battle game in October: aimed at 9-12 year-olds, it turns maths into a monster-packed roleplaying game. And very fun it is too.

That game was “freemium” – free to play, but using in-app purchases to unlock different sections (e.g. subtraction, multiplication and division) as well as buy virtual gold for upgrades.

Now the game’s developer SpinFall has launched Medieval Math Battle Gold, which dumps the in-app purchases aspect: “All operators are unlocked, plus earn twice the gold after every battle” as its app store listing puts it.

Medieval Math Battle Gold costs £1.99 for iPhone and iPad on Apple’s App Store, and £1.87 for Android on the Google Play store.