Mobile Apps
Tap the profile button (the contact card symbol) on the right of the Instagram toolbar. Tap “Edit Your Profile” (or “Edit Profile” on Windows Phone) and you can make changes to various aspects of your Instagram profile. Tap inside the Website or Bio fields to make changes to the text and enter your Ask.fm URL. Tap “Save” (on Android), “Done” (on iOS) or the tick icon (on Windows Phone) to confirm your changes.
On the Web
Log in to the Instagram website and click your profile link in the top-right corner. Choose “Edit Profile” from the drop-down menu. Enter your Ask.fm profile link into the Bio or Website fields. Click “Submit” to confirm the changes. You can find your Ask.fm profile link by logging in to the website and clicking the “Profile” link at the top of the screen. Writer Bio
