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Screenshots

  • Open Channel Flow Lite screenshot 1
  • Open Channel Flow Lite screenshot 2
  • Open Channel Flow Lite screenshot 3
  • Open Channel Flow Lite screenshot 4

About Open Channel Flow Lite

Open Channel Flow Lite is the free edition of Open Channel Flow Pro. It has every feature of the Pro version, for small channels. CHANNEL SHAPES • Rectangular • Trapezoidal • Circular • Natural (irregular cross-section, with overbank roughness) • Triangular • Parabolic SOLVE FOR • Discharge, water depth, bed slope, and the channel width or pipe diameter, using Manning's equation RESULTS • Flow area, wetted perimeter, hydraulic radius, velocity, Froude number and flow regime • Critical depth, specific energy, alternate and sequent depths • Discharge rating curve and specific energy charts MORE TOOLS • Water surface profiles by the direct step method, from a control depth • Efficient Section: size the best section for a design discharge • Manning's n picker • Metric and English units • Worksheets to save and reopen your calculations • PDF reports to share • Built-in documentation and usage manual • iPhone and iPad LIMITS OF THE LITE VERSION • Discharge up to 0.5 m³/s (17.65 ft³/s) • Water depth in a circular channel up to 0.6 m (1.96 ft) • Trapezoidal side slope of 1:1 only Open Channel Flow Pro removes these limits. No account and no ads. Your worksheets stay on your device.

What’s new

Version 1.3.0 · Updated October 13, 2026

Rebuilt on Open Channel Flow Pro 1.8. The Lite version now has every feature of the Pro version: • Triangular and parabolic channels • Water surface profiles (gradually varied flow) • Energy and momentum: critical, alternate and sequent depths • Efficient Section design aid • Natural channels with overbank roughness • Metric and English units, and a Manning's n picker • iPad layout • No limit on the number of worksheets The Lite version is now limited by the size of the channel: discharge up to 0.5 m³/s, water depth in a circular channel up to 0.6 m, and a trapezoidal side slope of 1:1.

App privacy

The developer, Alexius Academia, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to Open Channel Flow Lite

Looking for apps like Open Channel Flow Lite? Here are 6 similar apps on the App Store. The highest rated is Compare Flow (4.6/5), and 3 of the 6 are free to download.

Open Channel Flow Lite vs. alternatives
App Rating Price Last updated Compare
Open Channel Flow Lite – Free October 13, 2026
Compare Flow 4.6 / 5 (5) Free Oct 9, 2025 Compare
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