I have a group of projects that you may be interested in. All are based on the same pre-existing encrypted API backend (using OpenSSL) to execute api call gets.....
The first app consists of 3 pages only. The first page will be a scrollable (and updatable) database of products. The second page is a simple number pad for inputting value. The final "checkout" page collects pre-set items from page 1 db of products and manual value entry on page 2. It utilizes an api to get btc price (such as bitstamp API) to convert dollar value to btc (the units need to be switchable between USD, btc, satoshi, and millisatoshi) and the app will then be able to execute a single API call "get" and display the "post".
The second app and third will be very simple 1 page apps, linked to the same api.
The second app will utilize 3 simple api gets and posts.
The third app will also utilize 3 simple gets and posts.
Both of these apps require 2fa to execute 1 of the api calls.
Since these apps are very simple I assumed you could give me a good package deal on all of them.
Simple sketches will be provided for a relatively simple design requirement when requested.