Ledger Nano S Plus can accommodate up to 8 applications at a time. However, keep in mind that some apps may take up more space than others. Therefore, it's important to carefully select the apps you want to install on your device to ensure optimal performance. If you're looking to install a large number of apps on your Ledger Nano S Plus, you may want to consider using a Ledger Manager. This software application allows you to manage your apps and devices from a single interface. Additionally, it provides a way to easily update and delete apps as needed.