I've gathered only the app techs that are actually good to use~ㅎㅎ

https://moneyplus707.tistory.com/258

I've compiled all the crazy airdrops/app techs with great benefits into a blog post.
You can participate right away with just a cell phone and your finger.
Even if you invest just 5 minutes, you can immediately earn at least 30,000 won, so be sure to get it.