if you look for a cheap system, blue Iris, Foscam, Siri cam are brands you can take into consideration.
IP cam viewer on android/ios app are various. Here are some apps:
Yoosee:
+iOS: Yoosee on the App Store
+Android: Yoosee - Android Apps on Google Play
+apk file for download on Pc/other phones: Yoosee - Android Apps on Google Play
Topsview:
+iOS: TopsView on the App Store
+Android: TopsView - Android Apps on Google Play
+apk file for download on PC/other phones: Download TopsView for PC - choilieng.com
IP cam viewer on android/ios app are various. Here are some apps:
Yoosee:
+iOS: Yoosee on the App Store
+Android: Yoosee - Android Apps on Google Play
+apk file for download on Pc/other phones: Yoosee - Android Apps on Google Play
Topsview:
+iOS: TopsView on the App Store
+Android: TopsView - Android Apps on Google Play
+apk file for download on PC/other phones: Download TopsView for PC - choilieng.com