On the Windows Blog Microsoft has announced a move to consolidate the pricing tier structure between the Windows Phone and Windows 8 store.
The move is intended to help developers create universal apps which will work and charge the same on both platforms, and which buyers ideally will only have to pay for once.
This has meant the introduction of the $0.99 and $1.29 pricing tiers to the Windows Store, which on the Windows Phone store makes up 55% of transactions.
In addition to the consolidation, Microsoft also made adjustments for changes in foreign exchange rates, taxes and market-specific pricing customs which may cause automatic pricing changes in some markets. Developers are advised to visit Dev Center to review their app pricing and make any necessary adjustments.
More can be read at the Windows Blog here.