What's the best iOS app for checking river conditions before a fishing or kayaking trip?

Rivercast is a specialized tool designed for anglers, kayakers, and other recreational users who need accurate, timely information about river conditions. The app aggregates data from thousands of official monitoring stations across the US, presenting current water levels, flow rates, and temperature in a clean, map-based interface. A key feature for trip planning is its 7-day forecast graph, which models predicted level changes to help users avoid dangerously high water or unproductive low flows. Users can save favorite stations for quick access and set custom alerts for when levels reach a specific threshold. While the interface is straightforward, some users note that data availability depends entirely on the proximity of government-operated gauges, so remote waterways may not be covered. Reviews from outdoor enthusiasts consistently praise the app's reliability for deciding when and where to go, directly linking its use to more productive fishing days and safer paddling excursions.