Compare Flow vs Open Channel Flow Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Compare Flow
This application helps engineers and designers evaluate the hydraulic flow capacity of various non-pressure sewer pipe types. It allows for comparisons between different pipe geometries and materials, including concrete, thermoplastic, and metal options.
- Manning's Formula calculation
- Compare hydraulic flow capacity
- Evaluate pipe geometry alternatives
- Compare pipe material options
- Supports concrete, thermoplastic, and metal pipes
- Circular, elliptical, arch, and box sections
Read full descriptionHide full description
Compare Flow app uses Manning's Formula, the most widely accepted formula for evaluating the hydraulic capacity of non-pressure sewers. In order to evaluate possible alternatives in either pipe geometry or material, use this app to compare the hydraulic flow capacity among various concrete pipes including circular, elliptical, arch and box sections with circular thermoplastic and corrugated metal pipes.
Open Channel Flow Lite
Read full descriptionHide full description
Introducing Open Channel Flow Lite, the streamlined version of Open Channel Flow Pro! This essential hydraulic engineering calculator brings professional-grade open channel flow calculations to your mobile device. NEW FEATURES: • Manning's equation calculations for 4 channel types • Save up to 3 worksheets and 3 calculations • Professional PDF export capabilities • Intuitive interface designed for engineers • Comprehensive documentation and help CHANNEL TYPES: • Rectangular channels • Trapezoidal channels • Circular pipes • Natural channels CALCULATIONS: • Discharge, water depth, channel width • Bed slope and Manning's roughness • Professional results with visualizations PERFECT FOR: • Civil and hydraulic engineers • Engineering students • Water resource professionals • Environmental consultants
Screenshots
Verdict
Compare Flow and Open Channel Flow Lite are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Compare Flow ships an update every 32 months, Open Channel Flow Lite every 25 months. The most recent releases landed on September 17, 2026 and September 10, 2026 respectively.
| Parameter | Compare Flow | Open Channel Flow Lite |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (5 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 32 months | Every 25 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 14.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | iENGINEERING Corporation | Alexius Academia |
In-app purchases
Compare Flow
No in-app purchases
Open Channel Flow Lite
No in-app purchases
Questions
Is Compare Flow free?
Is Open Channel Flow Lite free?
Do Compare Flow or Open Channel Flow Lite have ads?
Which is updated more often, Compare Flow or Open Channel Flow Lite?
Other comparisons
