Number of Downloads:
Google Maps 10b (90.4%)
Maps Me 50m (0.4%)
Waze 50m (0.45%)
Google Maps Go 500m (4.5%)
Organic Maps 1.1m (0.009%)
Total: 11.05b
Number of Reviews Play Store:
Google Maps 18.5m (64%)
Maps Me 1.27m (4.4%)
Waze 8.77m (30.3%)
Google Maps Go 313k (1%)
Organic Maps 103k (0.03%)
Total: 28.8m
Number of Reviews Appstore:
Google Maps 731k (74.6%)
Maps Me 12k (1.2%)
Waze 233k (23.7%)
Apple Maps 2.5k (0.2%)
Organic Maps 85u (0.08%)
Total: 979.35k
Number of Contributors:
Google Maps 120m (91.9%)
Openstreetmaps 10.5m (8%)
Total: 130.5m
Community Size on Lemmy
Organic Maps 318u (55.3%)
Apple Maps 257u (44.6%)
Total: 575u
Edit 1: fixed the inconsistency of the numbers placement.
Some things I learned.
Maps.me is the predecessor to organic maps.
Google Maps Go is basically just the browser version of Google maps meant for low memory phones.