Have you tried the beta of the official Dgt app? Seems to work well playing on the other site
DGT Pegasus User Experience

Hi Steffen, thanks for sharing this!
What does "wrong rating" mean? Is it the displayed rating of the opponent?

"Wrong rating" means that I selected in the app opponents with a +/-100 Elo difference, but the real opponent had a significantly larger Elo difference. Usually he had much smaller Elo than I, much more than 100 points difference.

Ah, I see, that's why I don't come across it. Most of the time I just use the app to pick up games I started on another device. Perhaps the app is deviating from the settings so that games don't take too long to start. In that case, the behaviour would probably also depend on the time of day (and therefore on the number of users who are online).
Hello everyone,
In the last few months I have recorded how the user experience with the different apps for the DGT Pegasus is. I recorded whether the game runs smoothly or whether there was a glitch in the app. You can find the results here: DGT Pegasus Apps User Experience. Overall I'm very happy with the DGT Pegasus, although there are occasional glitches. The feeling of playing with the board is incomparable and is great fun.
tl;dr
The chess.com app is the most stable, followed by Whitepawn. The DGT Chess App still has room for improvement :-)
Best regards
Tontaube