Has anyone used Fiverr to get a freelance app developer? I’ve seen multiple Bubble.io developers advertising just £30 for a build; that seems too good to be true!
Anything too good to be true is usually not - there’s a reason why successful agencies and developers charge more than $10,000 and still have tons of work.
Another scam - some agencies (even gold-tiers) advertise themselves with a project starting price of $1000 or below. Try getting them to build something at this price 
I personally think my prices are super low compared to big agencies, but even I won’t take up a build under 3K 