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By Joalah Designs LLC

This app is only available on the App Store for iOS devices.


With one simple height measurement of the water flowing over the top of a V-Notch weir, NotchFlow calculates the flow-rate and the population that could be supported given a set per capita water usage.

NotchFlow can also calculate the expected height and supported population for a given flow, or the required flow and expected height for a given population.

These types of calculations are useful in both developing nations and agriculture in general where an estimate of a water courses flow-rate has to be quickly and easily made in the field.

What's New in Version 1.1.0

Updated to iOS 6 and 4 inch retina screen

iPhone Screenshots

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  • Free
  • Category: Utilities
  • Updated:
  • Version: 1.1.0
  • Size: 2.2 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 4.3 or later. Compatible with iPhone, iPad, and iPod touch.

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