Does collecting coins in Temple Run 2 increase your score? It seems like it does slightly, but I can't tell and would like a precise answer.
Yes it does slightly, just as what you guessed. Apparently, Temple Run 2's gameplay is no different to its first game but quality and sequence of events. So, as this blog says, it is precisely affecting your score in little amounts. And of course as mentioned by @aytimothy don't forget the multiplier! Different enhancements in scores are also written there, so it's worth a read.
The 3 basic elements that give a score:
- 1 point for each meter you run
- 5 point for each coin collected
- 25 points for each power-up collected