You can try the Digital Auto Guides applications without charge at either the Apple App Store or Google Play. For now only the full versions are available at Amazon.
During your trial period you will have full access to the manuals for up to five sessions. You will also have full access to all of the service features but will be restricted to one maintenance item at a time and one project at a time. You will only be allowed to archive the the service features once.
A small purchase is required to unlock the manual permanently. Likewise the service feature restrictions can be removed for a small fee. You can choose none of these, one or both depending on your requirements. Once purchased the features are unlocked forever on all of your devices you choose to use.
The fuel monitoring and My Car features as well as other tools are for your use unrestricted as well as the support for saving and sharing your data between devices via DropBox.