Hi,
I am a freelance Bubbler. First of all this is really complex, and would need so many integrations with blockchain, especially when you’ll be integrating with exchanges.
Setting up bidding prices, user management for buyer and seller, and of course instant exchange for crypto currencies. The User interface is not going to be challenge, but yes Integrating with APIs would.
Even if Fiver guy is telling you to do this for $15k, please see their past work as this app is challenging for even an Expert Bubbler, not an easy app to build.
I haven’t build this app before, but pretty confident of turning this idea into a live app. What best I can offer you is $6k for developing plus we would need to hire a blockchain developer to integrate with exchanges for exchanging crypto, so you would need to have a budget of $9k (this can be lower or higher depending Blockchain developer pricing) However, I would give my best to integrate in house first going through documentation for each exchanges primarily Binance or any preference you have.
1 Like