iOS App that uses GPS to find direction and distance to given location -- 3

Hello, I am looking for a fairly simple app that uses GPS and gyroscope to find direction for particular location. A simple scenario for usage would be like save parking location and find that spot later on. Another feature would be to track/remember path using periodic anchors on map. Here are requirements. It consist following screens/functions. 1. Save location using GPS/LatLong or Google Maps API 2. Calculate distance and estimated time for given location 3. Compatibility to adjust database from previously built app 4. Deeplink that can be shared with friends 5. Let user choose how often they'd like to update GPS position 6. SOS message that broadcast message to selected contact 7. Google Map integration (Open location with G Maps) 8. Subscription/In-App Purchase for specific features. In short, User would save any location and will use it later on to go to that place. This is essential for places where maps are useless as well battery consumption is biggest concern. It'd be used for safety purpose among people who loves adventure and wants to alert their friends in case of emergency situation (also hope to make it viable for women safety against abuse) I will provide Adobe XD designs for each and every layout. And I will require support until App goes live. Final milestone would only be released if Apple approves submitted app. Mention Zap and provide your portfolio as well :) #previous app was on #C released back in 2014 Thank you.