Quits mid download – Wireless Mobile Utility Review

This app worked great when I first got my camera but the last year it keeps disconnecting or the download of photos never begins . Troubleshooting I have tried : Updated iOS software, checked for app updates(none in years ) deleted the app and reinstalled issue persisted. Issue resulted in transferring via SD card which defeats the purpose of buying this particular camera .
Review by OG;) on Wireless Mobile Utility.