You can directly share to an Instagram business account on Ripl for web and the iOS & Android app. You can connect as many Instagram accounts as you wish.
Since Facebook owns Instagram, we need your Facebook permissions to share to your Instagram business account. First, you will need to switch your Instagram Account from personal to business. Next, you'll want to make sure that your business Instagram page is connected to the Facebook page that your personal Facebook account is the administrator of (please see this article for the instructions on how to do it). Once this is completed, please connect the personal Facebook account and the Facebook Page associated with your Instagram business account to Ripl.
On Ripl for web, you can connect your Instagram business account by accessing "My brand" at the top of the screen, then "Settings" and clicking on "Connect" next to Instagram business.
On the mobile app, you can connect your Instagram business by tapping "My posts," select "Brand settings," tap the "+" under "Social Media Accounts," then "Connect" next to Instagram business.
Please refer to this Ripl Blog Post for further assistance.
If you have any questions regarding Instagram business, please send an email to firstname.lastname@example.org.