# iFunctionGenerator vs Darcy Weisbach Equations Calc

The clearest difference is review sentiment: iFunctionGenerator at 53% against Darcy Weisbach Equations Calc's 0%. iFunctionGenerator also leads on update cadence (every 12 months vs every 26 months) and iOS requirement (6.0 vs 13). On price, ads, in-app purchases and monetization model there is nothing between them.

iFunctionGenerator costs $2.99 and Darcy Weisbach Equations Calc $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iFunctionGenerator ships an update every 12 months, Darcy Weisbach Equations Calc every 26 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | iFunctionGenerator | Darcy Weisbach Equations Calc |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | **[4.4 (9 ratings)](https://appshunter.io/ios/app/ifunctiongenerator/id304851755/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | **53.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 12 months** | Every 26 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 1 MB |
| Requires iOS | **6.0** | 13 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Black Cat Systems](https://appshunter.io/developer/301047032) | [Nitrio](https://appshunter.io/developer/321121189) |

## What reviewers say

### iFunctionGenerator

[App page](https://appshunter.io/ios/app/ifunctiongenerator/id304851755)

This utility transforms your iOS device into a versatile audio function generator. Create up to 20 independent generators producing various waveforms and noise types, with precise control over frequency, volume, and phase for each channel. Save and recall your settings for quick access.

**Highlights:** Multiple waveform generation (sine, triangle, sawtooth, square), Pink and white noise generation, Up to 20 independent generators, Independent left/right channel volume control, Adjustable frequency from 1 to 20,000 Hz, Phase control, Save and load generator settings

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Darcy Weisbach Equations Calc

[App page](https://appshunter.io/ios/app/darcy-weisbach-equations-calc/id1448457638)

This physics and math calculator quickly computes fluid head loss, friction factor, and other pipe flow parameters. It supports various units and offers precise calculations up to 16 decimal places. Results can be easily copied to other applications.

**Highlights:** Instant calculation, Copyable results, Formula reference, 16 decimal place precision, Multiple unit support, Ad-free and private

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iFunctionGenerator free?

iFunctionGenerator costs $2.99, with no in-app purchases.

### Is Darcy Weisbach Equations Calc free?

Darcy Weisbach Equations Calc costs $2.99, with no in-app purchases.

### Do iFunctionGenerator or Darcy Weisbach Equations Calc have ads?

Neither iFunctionGenerator nor Darcy Weisbach Equations Calc shows ads.

### Which is updated more often, iFunctionGenerator or Darcy Weisbach Equations Calc?

iFunctionGenerator ships an update every 12 months, and Darcy Weisbach Equations Calc every 26 months. Most recently, iFunctionGenerator was updated on October 29, 2026 and Darcy Weisbach Equations Calc on October 25, 2026.

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