Current prices for E5, E10 and diesel at German filling stations — fetched quickly, with nobody looking over your shoulder. <b>What Tankblick does</b> * Search nearby, with price, distance and open/closed status * Favourites for the stations you actually visit — all refreshed in a single request * Detail view with all three prices, the address and opening hours * Navigation with the app of your choice: Organic Maps, OsmAnd, or whatever else you have installed * Keeps working offline, and says honestly how old the prices on screen are <b>What Tankblick does not do</b> No account. No tracking, no analytics, no ads. No background requests. The app talks to exactly one server: creativecommons.tankerkoenig.de. Your location leaves the device only as a coordinate pair in a search you started yourself. Favourites, settings and prices stay local, and price history is deleted after 30 days. <b>You need your own API key</b> Tankerkönig issues keys per person, and a key hidden inside the app could be extracted anyway. Register for free at onboarding.tankerkoenig.de — first name, last name and email address are required. Keys are reviewed by hand, which can take a few days. A demo key is available in the app for trying it out. Your key is encrypted with AES-256-GCM in the Android Keystore and excluded from cloud backup. <b>Attribution</b> Price data: Tankerkönig / Markttransparenzstelle für Kraftstoffe of the Bundeskartellamt, licensed under CC BY 4.0 — https://creativecommons.tankerkoenig.de/