The smartphone app of the mobile network operator otelo ensures transparency and an improved cost control by displaying all-important information on two clear, comprehensible screens. On the first screen, users can see their status at a glance. With a simple swipe, they can check their rate options and change them directly in the app. Bills land straight in the e-mail inbox. Questions are answered by a contextual FAQ that follows the user. In addition, customers who want to cancel their contracts can do so within the app with just one click.