# Frequency Conversion vs Antenna Tools

The clearest difference is price: Antenna Tools at Free against Frequency Conversion's $2.99. Antenna Tools also leads on update cadence (every 4 months vs every 22 months) and iOS requirement (13.0 vs 17.6). Frequency Conversion's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Antenna Tools is free to download; Frequency Conversion costs $2.99 up front. Antenna Tools sells 1 one-off in-app purchase. Frequency Conversion asks for nothing beyond the download.

Frequency Conversion ships an update every 22 months, Antenna Tools every 4 months. The most recent releases landed on September 11, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Frequency Conversion | Antenna Tools |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/antenna-tools/id6759701783/reviews)** |
| Number of ratings | — | **7** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 22 months | **Every 4 months** |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 58 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Heng Jia Liang](https://appshunter.io/developer/1532000635) | [Nanjibhai Gorasiya](https://appshunter.io/developer/1834066312) |

## What reviewers say

### Frequency Conversion

[App page](https://appshunter.io/ios/app/frequency-conversion/id6444392460)

**Features:** macOS Compatibility

**In-app purchases:** none


### Antenna Tools

[App page](https://appshunter.io/ios/app/antenna-tools/id6759701783)

This utility app assists engineers, technicians, students, and radio enthusiasts with essential antenna and RF calculations. It simplifies complex formulas into easy-to-use calculators for designing, installing, or tuning antennas, providing fast and accurate results for field and lab use.

**Highlights:** Calculate antenna dimensions by frequency, Convert frequency to wavelength, Radio system setup tools, Quick technical calculations, Reliable field performance

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $9.99 | one-time |


## Frequently asked questions

### Is Frequency Conversion free?

Frequency Conversion costs $2.99, with no in-app purchases.

### Is Antenna Tools free?

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

### Do Frequency Conversion or Antenna Tools have ads?

Antenna Tools shows ads; Frequency Conversion does not.

### Which is updated more often, Frequency Conversion or Antenna Tools?

Frequency Conversion ships an update every 22 months, and Antenna Tools every 4 months. Most recently, Frequency Conversion was updated on September 11, 2026 and Antenna Tools on September 12, 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.*