I’ve tried a bunch of those apps, most either make you grind endlessly or hit you with some insane payout limit like $100, and then slow down your earnings right before you reach it.
http://mirosovak.edoras.cz/viewtopic.php?f=3&t=509666
https://muchroom.ng/index.php?topic=36081.new#new
http://wirtualnapolityka.cba.pl/showthread.php?tid=7088
https://democratstoughlove.com/showthread.php?tid=1281
https://debate.socialism.nl/forum/showthread.php?tid=183469
https://debate.socialism.nl/forum/showthread.php?tid=187728
http://frmklas.com.tr/threads/en-cok-kazandiran-slot-slotta-en-cok-kazandiran-oyunlar.104313/
https://45.83.123.20/viewtopic.php?t=6355
https://script.jumgoo.com/forum.php?mod=viewthread&tid=21063&extra=
https://script.jumgoo.com/forum.php?mod=viewthread&tid=20524&extra=
http://users.atw.hu/tunedthings/viewtopic.php?p=441139#441139
https://www.ww2.site/forum/viewtopic.php?t=94108
http://horsecity.ru/phpBB3/viewtopic.php?f=32&t=418713