I'd echo what Jamie said. You can get some visibility on the Android side of things since Google can stitch that together easily. iOS is trickier. TBH I haven't done anything with that specifically yet, so not sure how great the solutions are out there. I'm sure you could do something with statistical modeling, just like anything else, but you need lots of data for that (and a skilled statistician or firm who does this).

Mobile install attribution is an entirely separate thing from marketing attribution. As far as I am aware all the mobile attribution providers are just attributing the last click that led to the install rather than giving partial credit to each ad interaction prior to conversion. The list of common providers there is generally: AppsFlyer, Kochava, Apsalar, Adjust, and Tune (doesn't work with Facebook).

Hi Jamie, I work at AppsFlyer. Indeed the attribution standard is by giving credit to the last click. However, our dashboard provides more insights by providing multi-touch attribution data, meaning assisted installs.