The Alle Spielplätze in einer App is a free Android application developed by Ralph Anthes. It falls under the Travel & Navigation category and offers a comprehensive catalog of playgrounds in Germany with over 78,000 entries. The app is designed to help parents, guardians, and children easily locate and explore their favorite playgrounds in Germany.

The app contains numerous categories of playgrounds, including Spielplätze, Bolz- bzw. Ballplätze, Indoorspielplätze, Abenteuerspielplätze, Wasserspielplätze, Kletterparks, Freizeitparks, Skateplätze, Rodelberge, and Mehrgenerationenspielplätze. It also allows users to filter their search results based on their preferences, such as only showing results for Seilbahnen or Wasserspielplätze. Users can also rate each playground, upload photos, and add descriptions to help others find the best playgrounds in their city. With the GPS module, users can easily find the nearest playground to their location.