Suppot for Safari is nonexistent - buggy, unreliable. Some features simply do not work
Question says it all. Try using Mint.com with Safari (9.1.3) ... go ahead, I'll wait.
1. When logging in for the first time on a given day the refreshing icon next to the accounts never disappears after the refresh is complete. You need to completely refresh the entire page (using Safari's refresh button) to see the accounts refresh has completed.
2. Clicking "Transactions" after the refresh is complete does not show the new transactions that have been downloaded by the refresh. You must, as noted above, click the browser refresh button and reload the whole application.
3. Under "Budgets", if you expand "Everything else" and click on a subcategory (to see all transactions under that category) , the search is never applied. The transactions view never refreshes to show the new search results.
Basically, every in-app navigation link and refresh does not work in Safari or works very unreliably. This includes splitting a transaction (the newly split transaction does not appear in the list - it still shows the single transaction before the split) - see: https://mint.lc.intuit.com/questions/1381528-why-does-split-transaction-work-so-unreliably-osx-safar...
Basically, your website is a POS. It's quality issues like this that will easily kill a product. Faster than a tough competitor, faster than a poor financial slump. If users can't rely on your product to WORK, they'll move on to others (like Level Money)
It is a joke that a company as large as Intuit cannot manage to fix simple defects like this even after MONTHS of development time and website refreshes. Do you have any experience executing a proper software release?