He said if you don't have a spouse or other helper, navigating roads in a wheelchair, on crutches, or on a prosthetic limb could be difficult especially when there is snow on those roads.

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Other apps, such as HueVue and Colorblind Helper, assist with matching or harmonizing colors.

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Purists point to many giant breweries' use of "adjuncts, " a kind of "beer helper" of syrups and unmalted (meaning ungerminated) grains like rice and corn that, among other things, thins the brew's body and boosts its alcohol level on the cheap.

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