I was inspired by iSpy, but the "crafted from random stuff in my garage" look didn't work as well as I wanted it to, so I pivoted to a few fantasy environments instead. Give it a download and try to find some stuff and solve some puzzles!
Android:
https://play.google.com/store/apps/details?id=com.twoflyingflips.relichunt3d
iOS:
https://appstoreconnect.apple.com/apps/1555360970/appstore/info
I would recommend Hidden Objects: Coastal Hill, a hidden gem by the developer called Tamalaki. Check it out here: https://play.google.com/store/apps/details?id=com.adoregames.coastalhill&hl=en
I don't use Big Fish at all actually (those USD prices are 'eina') So I purchase either on Google Play (I use android operating systems), Steam (the bulk of my games) and a few over on GoG.com which I'd like to use more often but again GoG doesn't have regional pricing so it gets a little steep (my HoGs there I got from the GoG connect program with Steam). To be honest the regular bundles of Artifex Mundi games are far easier on the budget, than trying to scream and shout about international currencies and my falling Rand making places like Big Fish ever more expensive.
There are this one who is about Sherlock Holmes : https://play.google.com/store/apps/details?id=com.otherguys.lostdetective&hl=fr And this one about one Indian Detective (movie) : https://play.google.com/store/apps/details?id=com.games2win.byomkesh