# Cornell Pump Toolkit vs HydroCalc Basic

The clearest difference is in-app purchases: Cornell Pump Toolkit at none against HydroCalc Basic's 1. HydroCalc Basic's advantage is update cadence (every 11 days vs every 29 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. HydroCalc Basic sells 1 one-off in-app purchase. Cornell Pump Toolkit asks for nothing beyond the download.

Cornell Pump Toolkit ships an update every 29 months, HydroCalc Basic every 11 days. The most recent releases landed on September 23, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Cornell Pump Toolkit | HydroCalc Basic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/cornell-pump-toolkit/id982062017/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 11 days** |
| Monetization | Free | — |
| Size | 22 MB | 35 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cornell Pump Company](https://appshunter.io/developer/879210510) | [Transparent Blue Water LLC](https://appshunter.io/developer/1847968351) |

## What reviewers say

### Cornell Pump Toolkit

[App page](https://appshunter.io/ios/app/cornell-pump-toolkit/id982062017)

This utility app helps calculate key centrifugal pump performance metrics like head, suction, and friction loss. It also suggests suitable pumps from a catalog and allows saving and sharing results. It's designed for field use on Apple devices, functioning offline.

**Highlights:** Calculate Total Dynamic Head, Calculate Net Positive Suction Head, Calculate Friction Loss, Suggest pumps from catalog, Save and share calculations, Offline functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### HydroCalc Basic

[App page](https://appshunter.io/ios/app/hydrocalc-basic/id6752577110)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Flow Units & Ad-Free | $1.99 | one-time |


## Frequently asked questions

### Is Cornell Pump Toolkit free?

Cornell Pump Toolkit is free to download, with no in-app purchases.

### Is HydroCalc Basic free?

HydroCalc Basic is free to download, with in-app purchases available.

### Do Cornell Pump Toolkit or HydroCalc Basic have ads?

Neither Cornell Pump Toolkit nor HydroCalc Basic shows ads.

### Which is updated more often, Cornell Pump Toolkit or HydroCalc Basic?

Cornell Pump Toolkit ships an update every 29 months, and HydroCalc Basic every 11 days. Most recently, Cornell Pump Toolkit was updated on September 23, 2026 and HydroCalc Basic on September 8, 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.*