Currently I have developed a power app in which I have Sharepoint online connector which contains some promoted link with data (No custom Sharepoint list is used).
In my Power app all the datasources of Sharepoint online connectors are with promoted link, which perfectly working fine in Powerapp for web, But while running the same app in real iOS and Android devices the images are not shown same as web (only text is visible).
I checked with Sharepoint list with image property in column and results are correct as expected in both iOS and android.
But with Sharepoint promoted link no success even while using image property and link column both.