Tell me the exact model number (on the back of the display unit or in the manual), and I can confirm the correct app link for you.
Here’s the direct and safe way to get the correct software: parkside temperature and humidity monitor software download
It looks like you’re looking for the software download for a (often sold under the Parkside brand by Lidl, e.g., the Parkside X Temia or similar Bluetooth weather stations). Tell me the exact model number (on the