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The app for earning both bitcoin and ethereum is ae bitmaker
First and foremost, the app uses blocks which is the app's currency. When earned over time, the blocks can be used to withdraw either ethereum or bitcoin..
But due to miner fees, ethereum has a lower withdrawal limit than bitcoin
Anyways, if you're patient enough, that shouldn't be a problem
So here's the link to download the app
R9DQSQ https://goo.gl/U4c1GJ