Wyzi Theme only supports Google maps, as Google Maps has better usage coverage in more websites categories. Including Business & Industry, Shopping, Arts & Entertainment, Travel and 242 other categories.
OpenStreetMap hasn’t got a lead over Google Maps in any websites category.
Moreover, Google Maps support almost all browsers, in contrast for Open Street Maps, where many reported issues in older browsers.
Google Maps Maximum Zoon is 22, while Open Street Maps Maximum Zoom is 19.
Google Maps offers 3D Mode, Direction Service, Reverse Direction Service, Bicycle Directions, Contact Integration, Live Traffic Information, Turn-by-turn navigation, while Open Street Maps, only offer those features using 3rd Party Services.
As for Geography, Google Maps is leading in most countries, including United States, Japan, Germany, United Kingdom and 227 other countries.
Despite its recent growth, OpenStreetMap is still behind Google Maps in all market share segments.
As for current Wyzi position and future plans, Google Maps cannot be replaced with OpenStreetMaps still as Google Maps is still way ahead in most aspects and needs of Wyzi Maps features.
Finally, although Google Maps started charging for Map Services, they give 200$ free credit on the beginning of every month, and unless your website is extremely popular with millions of visitors monthly, you will not pay anything to google maps. In case you reached a point you needed to pay them, then your website is so popular and it is for sure by then your least concern will be such a small payment for all Google Services.
For example, all Wyzi Demos function on same Google Map ID and we get thousands of visitors daily and the total per month is few dollars, ( within the 200$ free ) so we do not pay anything.
This change Google did ( charging their services ) is just to stop some scammers and not for genuine people who are thinking of doing some good business.
Under the current situation of Maps, we do not plan to switch or support Open Street Maps.