NeuroMetrix Launches Quell® App for Apple Watch®, the First Smartwatch App for an Over-the-Counter Pain Relief Device WOBURN, Mass., Sept. 22, 2020 (GLOBE NEWSWIRE) -- NeuroMetrix, Inc. (Nasdaq: NURO) today reported the launch of the Quell Watch App, now available for download from the Apple App store. Quell is a...