After talking directly with tech support for Apple, Tile (bluetooth) and Tracki (GPS) I've decided to try the Tile Pro and ordered a 4 pk directly from their website. Why.....
I'm dedicated Android user, my wife is Apple only. Sometimes we travel together and sometimes separately.
After talking to Apple, yes, they do have an app that is compatible with Android but, a bit complicated to set up. Devices have to be registered to her phone, then my phone added to her account etc, etc but, in the end the Apple Android app doesn't give me the same full functionality as having the actual iPhone.
Supposedly, there are over 1 billion iPhone/Airtags floating around but, there is also a very high number of stolen iPhones that are then hacked (jail break) and resold on the cheap in the US and hugely overseas. The hacked phones, according Apple Tech Support, loose a lot of the IOS's functionality including the built in "Find My Phone" service. This is purposely removed/disabled in the jail break process to keep the stolen phone from being recovered. The Air Tags require this service to function.
I like the Tracki GPS based trackers but, the two downsides are, short battery life and the monthly fee ($19.99/mo) for each device. The battery is not replaceable and depending on how frequently it "pings" and reports it's location, per their Tech Support, is 3-7 days. In a lost/missing/delayed bag, the battery may die before it's found. The monthly subscription fee is nominal but the process is a PIA. It's a pre-paid system with your CC on file and it automatically renews every 30-days. So, if you do a typical 14-day trip, unless you jump thru hoops you end up paying for two months of service for each device.
Decided to try the Tiles mostly because they have an app for Android and iPhones that has the same functionality for both users. The devices can be registered to a single account and both users have full access and full capability simply by each logging onto the same account. Batteries, like the Apple Air Tags are common replaceable CR2032's and supposedly last a least a year.
Tile was actually the first into the market and pre-dates Apple Air Tags by 10-years. The Tile technology is similar to Apple in that each Android phone with the Tile app on it an running in the background acts as a "repeater" to get the device "ping" back to the users phone. One difference is the Tile user has to actively open the app to start it and when you close the app it still continues running in the background. In Apple's system the function is always running and the user has to actively turn the Find My Phone service off. I can see good pros/cons for both. Also, according to Apple Tech Support, an iPhone that detects the Air Tag ping and forwards it, get an alert that an Air Tag is within range. Doesn't provide any precise location of the device, just that there is one in the signals range proximity. I can also see pros/cons with this.
Anyway..... I've got a set of four Tile Pro's on the way and will play with them for a couple of weeks before I real-world test them in a few weeks this Aug on this year's trip to Botswana and report back when I get back at the end of Sept. Wife is going to LA for a few days to visit family so we'll see how they track it all.
Just as a matter of caution when going thru JNB on the way over, since it's an overnight layover, I always collect my checked bag. Not too worried about my riffle case as it's stored in the SAPS "vault" overnight. Since we have to get our morning flight boarding passes anyway and usually have to remove the ammo case from checked and pay the rifle handling fee anyway it's kind of no BFD. A tag is going the checked bag, one in rifle case and one in ammo case and we'll see what happens.