Which is better ECU programmer? Xprog-m, UPA-USB or MVP?

[scrobot 0]

Hi, i jus wanted some advice please!!!!!!! has anyone here used UPA-USB X-Prog-M or MVP???? could you help with the following plz! -which is better? -price? -Ease of use? -functionality -can both program in-circuit? Thanx in Advance!

[scrobot 0]

btw, below are the 2 products Xprog-m UPA-USB MVP

[Urough 0]

XPROG-M WITH DONGLE just bought one as the same price you listed

[Wenxamimi 0]

what is the dongle for I bought the Xprog-m V5.0 before Just fine wanna to sell it on eBay anyone need it??