You are incorrect.
There are two ways to get any older version of any app, if it still exists on Apple’s iOS App Store servers, if you have either a newer iDevice or a full computer with a special version of iTunes, OR if it was already installed previously, using the method I already outlined above.
Older versions of apps may still exist in the iOS App Store, despite the fact the apps may have moved on to an higher minimum iOS version, now.
If you need older versions of apps that have moved on to iOS 10 and later, tap on my link below and choose the method that best works with your current situation.
CAREFULLY read and follow ALL directions. Especially so for my computer/older iTunes procedures.
Any of my procedures/solutions work!
Downloading Older iOS 9.3.5 Versions of A… - Apple Community
A Disclaimer.
Apps may or may not have older iOS 9.3.5 versions still available from within the iOS App Store.
The availability of older apps for older iOS devices and versions is SOLELY up to the decision/discretion of the app
developer and NOT by Apple!
There are a couple of ways to try/attempt to get an older version of an app. Pick the method that works best for your
situation/circumstances.
Also, for older iPad users, I recommend users STOP using that nearly over 3-year old Safari Web browser, as it is, probably, not safe and secure to use any longer, and seek out a third party web browser that is STILL currently being updated and STILL being supported on iOS 9.3.5.
My advice on this issue is, also, included in my above link.