# RF Engineer's Calc vs Mix Ratio

The clearest difference is ads: RF Engineer's Calc at none against Mix Ratio's shown. Mix Ratio's advantage is update cadence (weekly vs every 10 months) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RF Engineer's Calc ships an update every 10 months, Mix Ratio weekly. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | RF Engineer's Calc | Mix Ratio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Weekly** |
| Size | 43 MB | 31 MB |
| Requires iOS | 16.1 | **12** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [GRAHAM JOHN SMITH](https://appshunter.io/developer/1668396908) | [82Blue Ltd](https://appshunter.io/developer/1375321097) |

## What reviewers say

### RF Engineer's Calc

[App page](https://appshunter.io/ios/app/rf-engineers-calc/id1668396906)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mix Ratio

[App page](https://appshunter.io/ios/app/mix-ratio/id6746357632)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RF Engineer's Calc free?

RF Engineer's Calc is free to download, with no in-app purchases.

### Is Mix Ratio free?

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

### Do RF Engineer's Calc or Mix Ratio have ads?

Mix Ratio shows ads; RF Engineer's Calc does not.

### Which is updated more often, RF Engineer's Calc or Mix Ratio?

RF Engineer's Calc ships an update every 10 months, and Mix Ratio weekly. Most recently, RF Engineer's Calc was updated on October 6, 2026 and Mix Ratio on October 5, 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.*