RQ Runlevel: Marathon Training is a free iPhone app developed by PERPETUUM ONLINE CORP. It is categorized under Lifestyle and falls specifically under the Health & Fitness subcategory.

The app aims to provide a better way of training for runners, starting with understanding oneself. RQ offers a range of features to assist in this endeavor. It includes a running analysis that evaluates the performance of your running ability and provides pace zones for scientific training. The app also calculates training pressure, allowing users to visualize their training index and avoid overtraining.

RQ Runlevel enables users to grasp their current physical, fatigue, and conditional indicators based on previous training records. This analysis helps users strive for their personal best. Additionally, the app emphasizes the importance of running technology and provides technical indicators for each pace zone. This allows users to improve their running technique and achieve better results.

It is worth noting that the app requires authorization to access health information such as workouts, heart rate, steps, and running distance. Continued use of GPS running in the background may significantly decrease battery life.

Overall, RQ Runlevel: Marathon Training offers a comprehensive set of tools and features to help runners improve their training and performance. It is a valuable companion for those looking to enhance their running abilities.