# Wattee Service vs Ham Engineering

The clearest difference is update cadence: Ham Engineering at every 3 weeks against Wattee Service's every 5 months. Ham Engineering also leads on iOS requirement (13.0 vs 18.0). 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.

Wattee Service ships an update every 5 months, Ham Engineering every 3 weeks. The most recent releases landed on September 30, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Wattee Service | Ham Engineering |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 11 MB | 21 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [FT4U company s.r.o.](https://appshunter.io/developer/1652176653) | [Yousif AL Balushi](https://appshunter.io/developer/1855752610) |

## What reviewers say

### Wattee Service

[App page](https://appshunter.io/ios/app/wattee-service/id6479269707)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ham Engineering

[App page](https://appshunter.io/ios/app/ham-engineering/id6795236723)

**In-app purchases:** none


## Frequently asked questions

### Is Wattee Service free?

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

### Is Ham Engineering free?

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

### Do Wattee Service or Ham Engineering have ads?

Neither Wattee Service nor Ham Engineering shows ads.

### Which is updated more often, Wattee Service or Ham Engineering?

Wattee Service ships an update every 5 months, and Ham Engineering every 3 weeks. Most recently, Wattee Service was updated on September 30, 2026 and Ham Engineering on October 4, 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.*