Zwałkowe Pegle is an Android app developed by Fantom that allows users to monitor the water level and flow of rivers at hydrological stations in Poland, categorized by provinces.

The app offers several key features to enhance user experience. Firstly, it supports offline functionality, meaning that once the data is initially downloaded, the app can continue to work with the last known states without requiring an internet connection. The only exception is real-time graphs, which are updated on demand.

Users can easily filter rivers by province, search for specific rivers on a list, and sort rivers based on their preferences. Additionally, they have the option to hide certain rivers from the list by adjusting the visibility settings. The app also allows users to create a list of favorite rivers and stations for quick access.

Zwałkowe Pegle provides a note-taking feature for users to add personal notes to rivers. It also includes a map displaying the locations of river stations and shows related stations for easy navigation.

One of the standout features of the app is its fully customizable notifications. Users can receive notifications about their selected stations and manage them through the app's menu.

The app utilizes its own database on a server to display water levels from the past year, as the official data from IMGW (Institute of Meteorology and Water Management) only provides information from the past three days.

Zwałkowe Pegle is a free lifestyle app that offers valuable information for those interested in monitoring river conditions in Poland.