Carpenters have a great motto: Measure 9 times, cut once. The same applies to choosing a tech / dev partner for a major project. You did not do a proper job with finding the right partner. But with respect mobile, I take the same approach you do - if visitors want to use my site they can jolly well go find a laptop somewhere. My approach to marketing my business is this: I can't be ars*d. You're welcome to take that approach as well (though I'm not sure it'll work great for a startup). Smart tech startups fail fast. They recognise early on when they've screwed up on something and they drop it. You've screwed up with the developer you hired. Bite the bullet and start again and do it properly this time. Also, to get something like this off the ground will take a lot more than £10K or £20K. Trust me. It's great to have a big vision, but getting people to spend time pulling out financial details from a painful period in their life is a challenge you're underestimating. The "potential" reward of a few quid at some unspecified time in the future is a laugh. That won't work. If you want to build a sufficient initial base of data you're going to have to pay people up front. Lots of money up front. Even then, you'll really, really struggle to get them to disclose the data you need!