Zmodo cameras on Amazon have no fees, work with smartphones and save events for 36 hours in the app, and you have the option to save events you pick to your phone and can share them. They are great and inexpensive. I have 4 in my House. App is great.
https://www.amazon.com/Zmodo-Wireless-Monitoring-Security-Recording/dp/B07BHQ1637/ref=mp_s_a_1_24?ie=UTF8&qid=1537023887&sr=8-24&pi=AC_SX236_SY340_QL65&keywords=zmodo+wireless+camera&dpPl=1&dpID=411SqgvUwzL&ref=plSrch