Use APKPure App
Get Tide Measure Tool old version APK for Android
Sea Current Measuring tool. Made for sailing coaches.
Measure current speed at any point. Put stick or full bottle in the water and press Start. Let it stay and when you return to pick it up press Stop.
Press Log after measurement if you want to save it to view later in Google Maps.
Files are saved in TideMeasureTool folder on your device.