App not compatible with your Device error

[Burst01]

When I go to reinstall Locus Map Pro on my phones (HTC Desire, Samsung S3 and/or S4) Google Play says the app is incompatible.  I have used the app on the Desire and S4 before for sure so what's wrong or has been changed?

[Menion]

Hello,
and what Android version is on your device?

[Burst01]

On the Desire it's 4.4.4
On the S3 it's 4.4.2
The S4 battery just died which is why I'm trying to get my older devices to work, but I recall it not working on that phone either.  The OS was up to date whatever it was.

[0709]

The manual !

https://docs.locusmap.eu/doku.php?id=manual:faq:devices_older_android&s[]=old&s[]=version

[Burst01]

Ah, thank you very much!