Installing Apps from Unknown Sources
In general, you’ll need to enable third-party apps from the Settings menu before you can use alternative app markets (see Figure 14–1).
Figure 14–1. Enabling third-party apps
Follow these steps to do so:
- Go to the Settings menu.
- Tap Applications.
- Tap to check the box labeled Unknown sources.
Once you’ve enabled apps from unknown sources, you can download them from websites, get them as attachments in email, or transfer them to your tablet via USB. All these alternate methods are referred to as sideloading.
Once you tap to open a downloaded .apk file, you will see the permissions required for that app. Just as when installing apps from the Android Market, you can click Install to proceed with or Cancel to abort an installation. For example, you can see the permissions window presented for the Amazon Appstore app on the right.
Let’s look at that app a little more closely.
