Calculator Toolbox updated with new UI and themes, now on sale for $1.49

[Windows Central]

Calculator Toolbox is a feature-rich calculator app for Windows Phone that delivers a total of 45 calculators across eight categories. There's also a currency and converter, along with a tip calculator. With OneDrive integration and Live Tile support, Calculator Toolbox has everything you're looking for in a calculator, and much more.

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[PBlessing]

weird issue with trying to update the calculator toolbox. If I try to run it, it takes me to the store to try and update it and every time it fails with the error 0x80073CF9 . I went to uninstall it and the uninstall is greyed out on the start menu. I went to the storage / app setting and it is not listed there are all. Anyone have any suggestions?