# Grundfos Energy Check Tool vs Sizing US/CA

The clearest difference is ads: Grundfos Energy Check Tool at none against Sizing US/CA's shown. Grundfos Energy Check Tool also leads on monetization model (free vs ad-supported). Sizing US/CA's advantage is rating (3.2 vs 3.0) and ratings volume (13 vs 1). On price, 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.

Sizing US/CA holds the better App Store score, 3.2 against 3.0. That said, the two scores are not equally well evidenced: Sizing US/CA has 13 ratings behind it against 1, so its average is the more settled of the two.

Grundfos Energy Check Tool ships an update every 4 months, Sizing US/CA every 6 weeks. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Grundfos Energy Check Tool | Sizing US/CA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/grundfos-energy-check-tool/id805752202/reviews) | **[3.2 (13 ratings)](https://appshunter.io/ios/app/sizing-usca/id1420112805/reviews)** |
| Number of ratings | 1 | **13** |
| Positive reviews | — | 11.1% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 64 MB | 27 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Grundfos Holding A/S](https://appshunter.io/developer/940210934) | [Gastite Products LLC](https://appshunter.io/developer/668653608) |

## What reviewers say

### Grundfos Energy Check Tool

[App page](https://appshunter.io/ios/app/grundfos-energy-check-tool/id805752202)

This tool helps assess the energy-saving potential of installed pumps by collecting data like flow, head, and power. It supports life cycle cost analysis to inform decisions about pump replacement or new solutions, providing factual documentation.

**Highlights:** Pump data collection (Q, H, P2), Pump age and operating hours input, Life cycle cost (LCC) analysis support, Energy saving potential overview, Data upload functionality, Decision support with facts

**In-app purchases:** none


### Sizing US/CA

[App page](https://appshunter.io/ios/app/sizing-usca/id1420112805)

This utility app helps installers determine the correct size of flexible gas piping for their projects. It calculates the appropriate pipe size based on gas type, tubing length, supply pressure, and flow capacity. Users can also access installation guides and product information.

**Highlights:** Flexible gas pipe sizing, US and CA location selector, Automatic value adjustment, Certification card access, Installation guide viewer, Product search, Direct contact with developer

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Grundfos Energy Check Tool free?

Grundfos Energy Check Tool is free to download, with no in-app purchases.

### Is Sizing US/CA free?

Sizing US/CA is free to download, with no in-app purchases.

### Which has better reviews, Grundfos Energy Check Tool or Sizing US/CA?

Sizing US/CA is rated higher. Grundfos Energy Check Tool averages 3.0 out of 5 from 1 ratings, while Sizing US/CA averages 3.2 from 13 ratings.

### Do Grundfos Energy Check Tool or Sizing US/CA have ads?

Sizing US/CA shows ads; Grundfos Energy Check Tool does not.

### Which is updated more often, Grundfos Energy Check Tool or Sizing US/CA?

Grundfos Energy Check Tool ships an update every 4 months, and Sizing US/CA every 6 weeks. Most recently, Grundfos Energy Check Tool was updated on November 6, 2026 and Sizing US/CA on November 2, 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.*