SlideScope is described as 'Desktop viewer for microscopy and whole-slide images that opens CZI, ND2, SVS, NDPI, MRXS, QPTIFF, LIF, IMS, DICOM and TIFF with calibrated measurement, annotation and local quantification' and is an app in the education & reference category. There are 2 alternatives to SlideScope for Mac, Windows and Linux. The best SlideScope alternative is ImageJ, which is both free and Open Source.
ImageJ is a public domain, Java-based image processing program developed at the National Institutes of Health. ImageJ was designed with an open architecture that provides extensibility via Java plugins and recordable macros.
Fiji is an image processing package—a "batteries-included" distribution of ImageJ, bundling a lot of plugins which facilitate scientific image analysis.
