No matter what you use books always get updates faster. I use heritage and check on flashscore, they both update scores before I see it happen. I don't think they pay that much attention to lower end tournaments, but they are also harder to find stream for.
sportszone app which takes a while to search for maybe later i can find a link, this is a good app and it can be downloaded to phone,
as it is easy to switch back and forth between matches.