I've considered adding hints. Do you have ideas? Mine:
1. Give names of intersecting streets.
2. Reduce the circle by half (just for this street).
3. Show a photo.
4. Allow you to drop a pin and tell you the distance (but not the direction). Then you can confirm the pin or move it one more time.
This morning I hit the Maptiler free plan limit. I now pay $30/month for it (annoyingly they don't include sales tax in their displayed prices). I think the limit goes a long way though
Yes I will be working on an adjustable radius (I made it 20% smaller yesterday btw) and difficulty modes.
>Compete with friends (Can make it viral)
You can compete with friends. Click "Learn more" to figure out how to do that. I will also be looking into a "share score" functionality as well as leaderboards maybe.
>Don't know how it calculates the point
I'm aware of an issue in how the distance is measured and will fix it. Sometimes there can also be a discrepancy between the data and the rendered map.