I've reviewed Superserve and I am able to easily download it and learn it's basic functions. I can open a basemap with Openstreet Map and create new layers easily. However, I'm not yet able to upload my own existing data onto the ap. I've traded emails with a member of Superserve support, but no success yet in uploading my existing data. I have hopes that we'll figure out the solution but until then, I am struggling still to find a low-cost, easy to use ap for an iOS device that can map, create new layers, use existing data, and load it back to my geo-database.
Thanks everyone for their advice. I appreciate your insight and support.
Cheers!