Thanks! I think one of the main differences is timing -- Estonia started 20+yrs before Ukraine so in a way they're quite far ahead in terms of systems/process maturity. However, because Ukraine started later they were able to skip over desktop and build just for mobile which is where the vast majority of folks interact with e-services these days, so in a way Diia (at least from a user interface perspective) if probably further ahead than Estonia which had to invest in both desktop and mobile platforms and was a bit slower to move on the latter. Overall, I find Diia and the pace of innovation from the team building it incredibly impressive.