rw950431:
There are dozens of such platforms each with their strengths and weaknesses.
I started looking at thinger.io, and then used google sheets using script.google.com (sorry, don't have a quick hyperlink reference for this) to store data from home my monitoring system.
I finally settled on using MQTT https://mosquitto.org/, first using cloud servers, and then my own mosquitto broker/server, inconjunction with Openhab https://www.openhab.org/. Both are open source.
Openhab also has android and IOS apps, and allows access via the cloud.