You cannot calibrate any monitor without a hardware device, a puck or similar. Some high-end monitors have come with their own calibration devices, but a device is required regardless.
Microsoft confusingly puts in Windows a 'monitor calibration' function that you do by eye, and that you could perform with any monitor. But that is not calibration in any real sense, and it relies on your subjective perception and visual acuity to make comparatively crude adjustments. It may be better than nothing, but it's neither really accurate nor really precise.
I don't know about the UP2716D, but some monitors calibrate (and profile) about as well as they can be with less expensive devices like the i1Studio Display or the older ColorMunki Display, but other monitors require, to use their full functionality, more expensive devices like the i1 Display Pro Plus.