I am still selling a bitcoin app store 60% developed. Made in nodeJS uses Block.io API. I bought it from a developer who was developing it so it is not completed. I can setup a live demo for you only if you are interested. I have some screenshots take a look
Min bid: 0.3 BTC
Buy it now: 0.8 BTC
Min increment: 0.01 BTC
Time: 1 week
Only escrow accepted, you pay fees if any