> For the complete documentation index, see [llms.txt](https://docs.bravostudio.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bravostudio.app/good-to-know/billing/app-add-ons.md).
# App Add-ons
### How to add an Advanced app or Business app add-on
Advanced app and Business app add-ons are available if you are on the Bravo Solo plan. Each add-on is applied to only one app.
To upgrade an app to an Advanced app or Business app , click the **Upgrade app** button at the top of the screen within the app project. This will result in a confirmation pop-up. If you confirm, the app subscription will be added to your billing cycle prorated.
The add-on billing cycle will follow your Bravo Solo plan billing cycle, meaning if you have a yearly Bravo Solo billing cycle and then adds a Advanced app add-on, the Advanced app will also be a yearly billing.
{% hint style="warning" %}
The add-ons are currently not supported if you have subscribed to Bravo Solo with Apple subscription on your iOS device. Please contact `billing@bravostudio.app` for more information.
{% endhint %}
---
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