No. There are lots of startups with non technical founders who can bring in (or outsource) the technical development. There is a larger risk in the quality of the code when you do this. If there is no tech founder, then most of the time you will have a harder time judging the developers you will be using (hiring/outsourcing to.) It also means that you will have to pay for the development vs a co-founder putting in sweat equity to get the product done.
Based on your brief description, it sounds like there will not be a lot of heavy lifting to get the application up and running. From personal experience, getting the MVP version of the app done is really the easy part. It doesn't always feel like it, but in the overall picture it is easier to do development than it is to sell the app once finished. The sales/marketing after the fact is where the real work starts. Many hackers have trouble moving from development to marketing.