# Wilo vs LoadSizer

The clearest difference is in-app purchases: Wilo at none against LoadSizer's 1. LoadSizer's advantage is iOS requirement (15.1 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. LoadSizer sells 1 one-off in-app purchase. Wilo asks for nothing beyond the download.

## The numbers

| Metric | Wilo | LoadSizer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free | — |
| Size | 181 MB | 32 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WILO SE](https://appshunter.io/developer/756670903) | [Duong Nguyen Huu](https://appshunter.io/developer/1887479789) |

## What reviewers say

### Wilo

[App page](https://appshunter.io/ios/app/wilo-assistant/id397747214)

This app provides comprehensive support for planning, consulting, and installing pump technology. It offers tools for selecting replacement pumps, calculating energy savings, and diagnosing faults, even offline. Access detailed product information and control smart pumps.

**Highlights:** Smart pump control and settings, Interactive replacement pump recommendations, Energy savings and CO2 emission calculator, Pump dimensioning and selection, Fault signal diagnosis and remedies, Unit conversion tool, AR product scanner

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

**In-app purchases:** none


### LoadSizer

[App page](https://appshunter.io/ios/app/loadsizer-hvac-load-and-btu/id6817009200)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LoadSizer Pro | $2.99 | one-time |


## Frequently asked questions

### Is Wilo free?

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

### Is LoadSizer free?

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

### Do Wilo or LoadSizer have ads?

Neither Wilo nor LoadSizer shows ads.

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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.*