It appears that it did at one time, but all of the stp-by-step instructions I find appear to apply to obsolete versions of the Lastpass iOS App or iOS Chrome.
Hello @shawn,
My name is Henry and I am happy to assist with your inquiry, and appreciate you contacting LastPass Support!
According to our IOS autofill overview article, it would only be supported for apps installed in your phone and in Safari for websites.
Please let me know if this worked or if further assistance is required.
Thank you,
Henry | Customer Care
