You might be referring to the contracts. They're kinda specific, you can't do anything wrong if you want to get the gems. Sure, they're the fastest way to earn on Gamehag if it works well for you, but I wouldn't say they are good apps themselves. It's kind of copy and paste.
This app is good but this ''discussion'' isn't
in 3 steps
Choose the game that interests you and play itfor free.
Every game has some quests for which you will receive Soul Gems.
You can exchange your Soul Gems for Steam Wallet top-ups, game keys, CS:GO Skins and other rewards.
You know that on Gamehag you can get real rewards for free, right? Join us, complete walkthrough and get your chest!
This app are good because it is free