"Modapk" usually signifies a modified APK file. Downloading apps from unofficial sources outside of the Google Play Store or Apple App Store carries significant security risks, such as malware, spyware, or data theft.
If you are looking for a high-quality zoom or telescope app, it is much safer to use official versions found in your device's app store. Mega Zoom Camera - xZoom v12 - Modapk
The text you provided refers to , which appears to be a "modded" or modified version of a camera application. "Modapk" usually signifies a modified APK file