For reference, I scored 39 in the first game you linked and 280 for the second game.
I’m assuming by price for games that you mean how much would be a reasonable price for an app of those games. I’m not quite sure what the app market is like for a touch screen PC. However basing off prices in the Google Play market, I would say for the first app I would charge $1.99 USD and occasionally sell it on sale at $.99 USD. The second app I think has much better graphics and is more ‘kid friendly’ in my opinion. I would say $3.99-4.99 USD for that one.
I should note that in the first game that I could not turn off the sound. It was rather annoying for me since I usually play games without any sounds. Additionally there is no ‘high score’ chart in the second game. I could not find the top 10 rankings at all, it was just blank.
I also think that the first game was much harder than the second game, seeing that my point difference in each game is very different. I found it much easier to score in the second game than I did in the first game. However I actually liked the first game better than the second game. I think if you worked on the graphics of the first game that it would attract more attention.
I hope this helps a bit.