Hi, I am Jorge, from the Zendone team. More than in "Inbox 0", Zendone is based on Getting Things Done (GTD). In GTD a core stage is "Processing your inbox", which is why we offer explicit support for it. We also support the rest of GTD stages (Do, Organize and Review) and GTD vocabulary (next actions, projects, areas, etc). When it comes to email and tasks, we offer great support for it through your regular Evernote's email address: - You can create tasks directly from email (no need to go through the process cycle, if you already know that email is actionable) - The rich content of email is preserved - The Evernote note can be seen and edited within Zendone or via the Evernote app, as the synchronization is bidirectional. You can get a full overview of how Zendone implementes GTD here. In any case, I totally agree with @qot in totally recommending the reference GTD book. It's totally tool-agnostic and will wire in your brain a lot of great productivity concepts you will use the rest of your life. If you have any questions about zendone feel free to contact us or visit our community site (many of our community members are experts in productivity and GTD software).