Abstract: Conspicuous color, quality, taste and flavor highly depend on maturity stages of mango which differ with varieties. Both farmers and consumers confused to determine the exact stages with visual estimation due to nonexistence of pricy and arduous colorimeter. An android based mobile software “On Color Measure” (developed by PotatotreeSoft, Version 3.0) was experienced to detect fruit color for maturity indices of “Mallika” mango with physiochemical quality assessment. The dark olive green peel color was marked as earliest physiological maturity (stage-1), while the subsequent maturity stages determined at 2-days intervals as stage-2 (olive), stage-3 (apple green), stage-4 (brown), stage-5 (saddle brown) and stage-6 (dark golden rod color).