The Insightly Add-on for Gmail will be our replacement for the Insightly Sidebar for Gmail and the Insightly Gadget. Currently, the add-on is in beta and you can view leads, view contacts, create leads, and create contacts. More functions will be added in 2018.
Both of the older tools -- the gadget and the sidebar -- will no longer be available after August, 2018, because Google is changing the way Gmail works with apps.
Each time you open an email, your Gmail add-ons will appear on the right. After installing the add-on, click the Insightly icon to view Insightly records and options.