Lacking style and versatility

The GUI is very coarse on retina display. It is still iPhone scale and does not use the iPads full display to give quick access to all of the great functions. Most of the skins (after an extra 2.99 purchase) are very low-res and look like scanned and heavily compressed jpegs with compression artifacts. The only hi-res skin is poorly designed where buttons are indistinguishable from one another making it difficult to find the right one. Inverse pinching (to enlarge the the calculator image) resulted in "memory ..." flashing on LCD that would render any further calculations impossible and required a hard reset to fix.

Mike25318 about i41CX, v5.5