Hi there thanks for posting! Currently our equations functionality isn't supported for our mobile app it's only available in the web app. However we're always looking for ways to improve the mobile app and your feedback is the best way for us to do that. If using equations through the mobile app would be useful for your workflow would you mind adding that feedback to our feature request form? Ideas submitted to this form are passed on to the product development team for their consideration. Thanks and my apologies for any inconvenience this causes!