# Compare Flow vs Cometal

The clearest difference is update cadence: Cometal at every 6 months against Compare Flow's every 32 months. Cometal also leads on iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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, Cometal every 6 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Compare Flow | Cometal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/compare-flow/id581217854/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 23 MB | 163 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iENGINEERING Corporation](https://appshunter.io/developer/419618955) | [Im3diA comunicación](https://appshunter.io/developer/882688465) |

## What reviewers say

### Compare Flow

[App page](https://appshunter.io/ios/app/compare-flow/id581217854)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### Cometal

[App page](https://appshunter.io/ios/app/cometal-manual-tecnico/id937691770)

**In-app purchases:** none


## Frequently asked questions

### Is Compare Flow free?

Compare Flow is free to download, with no in-app purchases.

### Is Cometal free?

Cometal is free to download, with no in-app purchases.

### Do Compare Flow or Cometal have ads?

Neither Compare Flow nor Cometal shows ads.

### Which is updated more often, Compare Flow or Cometal?

Compare Flow ships an update every 32 months, and Cometal every 6 months. Most recently, Compare Flow was updated on November 1, 2026 and Cometal on October 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*