To add alt text on your Instagram photos, use the "Advanced Settings" link after you choose a filter when creating a post.

Right now, the Photos app has only a basic way to add text to videos, using a single font and a small set of seven colors.

Upgraded facial retouching could be coming to Google Photos, as well as a new 'add text' function that's similar to Instagram ...

With an upcoming Photos update, Google might bring extensive text features identical to what we've long seen on Instagram ...

You can add a link to an Instagram Story using a link sticker, which you can customize to send your followers to blog posts, ...

For reference, Google Photos' video editor currently only lets users select one default font for their text overlay needs, ...