Open Channel Flow Pro vs UGC Toolbox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Open Channel Flow Pro
This hydraulic engineering calculator simplifies complex open channel flow calculations for professionals and students. It provides accurate results for basic parameters, flow characteristics, critical flow analysis, and rating curves.
- Basic Hydraulic Parameters
- Flow Characteristics
- Critical Flow Analysis
- Rating Curves
- Wetted Perimeter, Area, Hydraulic Radius
- Velocity, Froude Number, Hydraulic Depth
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Open Channel Flow Pro is a hydraulic calculator for open channels. It solves uniform and critical flow, draws the water surface profile, and reports energy, momentum and the hydraulic jump, for six channel shapes. It is made for civil and irrigation engineers, and for students of hydraulics. SIX CHANNEL SHAPES • Rectangular • Trapezoidal • Triangular • Circular • Parabolic • Natural: a cross-section you enter point by point, with separate overbank roughness WHAT IT CALCULATES • Uniform flow by Manning's equation: solve for discharge, depth, bed slope and more • Area, wetted perimeter, hydraulic radius, top width, velocity, Froude number and hydraulic depth • Critical depth, critical velocity and critical slope • Specific energy, momentum and the sequent depth of a hydraulic jump • Water surface profiles: gradually varied flow from a control depth by the direct step method • Rating curves of discharge against depth • Design aids: most efficient section, freeboard and shear stress MADE FOR REAL WORK • Metric or English units on every form; values you have typed convert • A list of Manning's n values to choose from • Charts on every results screen • PDF reports you can share or print • Worksheets that keep your calculations • Messages under each field when an input is not valid • Built-in documentation of the equations and terms • Works offline, on iPhone and iPad Disclaimer: results should be checked before they are used in design. Professional use is at the discretion of the user.
UGC Toolbox
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UGC Toolbox, by Master Builders Solutions, is your go-to calculator app for quickly providing on-site data requirements for Sprayed Concrete, Injection and TBM operations. With a simple interface and powerful functions, it makes quick work of creating suitable parameters to meet your operational needs. Perfect for Underground Construction students and professionals alike.
Screenshots
Verdict
The clearest difference is price: UGC Toolbox at Free against Open Channel Flow Pro's $2.99. UGC Toolbox also leads on iOS requirement (13.0 vs 15.0). On update cadence, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
UGC Toolbox is free to download; Open Channel Flow Pro costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 17, 2026 and October 19, 2026 respectively.
| Parameter | Open Channel Flow Pro | UGC Toolbox |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 1.7 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexius Academia | Master Builders Solutions Deutschland GmbH |
In-app purchases
Open Channel Flow Pro
No in-app purchases
UGC Toolbox
No in-app purchases
Questions
Is Open Channel Flow Pro free?
Is UGC Toolbox free?
Do Open Channel Flow Pro or UGC Toolbox have ads?
Which is updated more often, Open Channel Flow Pro or UGC Toolbox?
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