Hi All,
Atlassian products can solve many industry problems relating to operations and business intelligence etc. although it doesn't solves all, this is where an add-on comes in to add that extra feature to it. There are many add-on Apps on the Marketplace and some are free while others are paid. So without an add-on can you still enjoy your Atlassian Product? The answer is "Yes". you can still enjoy your Atlassian product but add-ons just makes the Atlassian suite even better if you have scalability in mind. As add-ons extends the features that are not available on Atlassian products and the vast majority of add-ons are basically what makes Atlassian suite one of the best products in the market.