WellMonitor vs Open Channel Flow Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WellMonitor
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Allows WellMonitor users to access their SCADA data from your smartphone. Download the WellMonitor app and start view/plot your online data and following alerts of your monitored devices. See www.wellmonitor.net for more information about WellMonitor service.
Open Channel Flow Lite
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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.
Screenshots
Verdict
The clearest difference is update cadence: WellMonitor at every 3 months against Open Channel Flow Lite's every 13 months. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
WellMonitor ships an update every 3 months, Open Channel Flow Lite every 13 months. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.
| Parameter | WellMonitor | Open Channel Flow Lite |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 34 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | NUMERICA LTDA | Alexius Academia |
In-app purchases
WellMonitor
No in-app purchases
Open Channel Flow Lite
No in-app purchases
Questions
Is WellMonitor free?
Is Open Channel Flow Lite free?
Do WellMonitor or Open Channel Flow Lite have ads?
Which is updated more often, WellMonitor or Open Channel Flow Lite?
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