You can create a calculation field and have globiflow update it every time you change a record.
For example, I have a note app with a date (which is just "created on" date field).
I have another date field which is blank.
On globiflow, I create a flow with a trigger on the description field for the app. When I change something in the description, globiflow automatically updates the date to the current date.
I also have another calculated filed which calculates the number of days between when the record was created and the last updated. This tells me how many days is it been since I last updated this document.
Hope this helps.
Here is the code.
Field name: Days since created
var d1 = moment(@Date);
var d2 = moment(@Last updated on);
var result = d2.diff(d1, 'days')+1;