# RF Engineer's Calc vs Speedcert

The clearest difference is update cadence: Speedcert at every 3 days against RF Engineer's Calc's every 10 months. 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.

RF Engineer's Calc ships an update every 10 months, Speedcert every 3 days. The most recent releases landed on September 5, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | RF Engineer's Calc | Speedcert |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 days** |
| Size | 43 MB | 186 MB |
| Requires iOS | 16.1 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [GRAHAM JOHN SMITH](https://appshunter.io/developer/1668396908) | [ADAM GREEN](https://appshunter.io/developer/1863867658) |

## 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


### Speedcert

[App page](https://appshunter.io/ios/app/speedcert/id6756948281)

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

**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 Speedcert free?

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

### Do RF Engineer's Calc or Speedcert have ads?

Neither RF Engineer's Calc nor Speedcert shows ads.

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

RF Engineer's Calc ships an update every 10 months, and Speedcert every 3 days. Most recently, RF Engineer's Calc was updated on September 5, 2026 and Speedcert on September 24, 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.*