Look at this image posted earlier. This is why Qimai thinks Snowbreak is making less money than Guilongchao or Black Beacon, and why Snowbreak revenue always look lower than expected.
Games in the appstore have rankings based on their genre. The official ranking from Google and Apple ONLY GOES UP TO 200. When a game goes out of top 200, it just completely disappear from the list and you can't know its ranking. Qimai and Sensortower use this ranking to estimate revenue.
For some reason, Snowbreak doesn't have a genre. It's only "Game", even though it can be qualified as RPG or Action. When it drops out of top 200 games, Qimai/Sensortower will think it made LITERALLY $0 that day. The "Games" ranking is highly comoetitive.
Games with a lot of genre like GF2, despite always having lower peaks than Snowbreak, performs better on the estinated revenue chart because the Strategy genre doesn't have any competition. It will always appear, and Qimai/Sensortower will give it a non-zero number.
If you see rankings on Idayo or Game-daa-i, remember that any number above 200 are guesses, by merging multiple charts of different genre together. Of course, Snowbreak doesn't appear on those merged list.