Frankly, didn't try it...I was just checking for portfolio app that could pull data directly from API
If that "pull data directly from API" is about updated prices, change24, volume, CMC-rank, etc. - then you have found your solution. A solution, at least.
My system has two components:
- the frontend is a GoogleSheets spreadsheet, with additional GoogleScript functions to do cool stuff
- a dataserver backend which can compile data from many different sources, and concurrently.
The second was necessary, because every exchange has a different API format, and because GoogleSheets just collapsed under the load of too many concurrent requests.