Genuinely - what's this on iOS? I don't recall ever having used a "search app" on my iPhone.
Just as there is a Google search app on Android (https://play.google.com/store/apps/details?id=com.google.and...) there is a Google search app on iOS. They collect the same information when you perform the same actions, though many irrationally believe otherwise.
Similarly, the Google search web app collects exactly the same information on both platforms.
People are bringing up the Google Search app, Chrome for iOS, etc. Irrelevant.
They know fewer things than Apple knows for people who never opt in to any of the opt in settings and leave opt out settings alone. On a Play Store device, AGPS data collection is opt in. On iOS, it is not even opt out — you can't even disable it.
Play Store devices look even better when you consider what can be opted out of by setting default apps and by installing system wide ad blockers.
Even if I accept the notion that Apple collects more data than Google (which is dubious), Google's intentions with that data are far more insidious. I simply trust Apple a lot more as well.
I showed you exactly how they collect more data. Not believing the evidence is just an example of how marketing can result in brainwashing.
You trust Apple more for the same reason, even though they have repeatedly lied to you. Remember this? "Unlike our competitors, Apple cannot bypass your passcode and therefore cannot access this data. So it's not technically feasible for us to respond to government warrants for the extraction of this data from devices in their possession running iOS 8." [1] That no longer appears on the linked Apple "privacy" page, which turned out to be nothing more than a marketing page that made claims shown to be false by the FBI. A real privacy page would have announced the changes explaining that user's data isn't as private as originally claimed with just as much fanfare instead of updating without notice.
[1] https://gizmodo.com/apple-wont-turn-over-your-phones-data-to...