# HamLogJP vs Hz Lab

The clearest difference is in-app purchases: HamLogJP at none against Hz Lab's 1. HamLogJP also leads on update cadence (every 3 days vs every 2 weeks) and device support (3 vs 1). Hz Lab's advantage is iOS requirement (17.0 vs 26.0). On price and ads there is nothing between them.

Both are free to download. Hz Lab sells 1 one-off in-app purchase. HamLogJP asks for nothing beyond the download.

HamLogJP ships an update every 3 days, Hz Lab every 2 weeks. The most recent releases landed on October 16, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | HamLogJP | Hz Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 2 weeks |
| Size | 6 MB | 2 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hashimoto Yoshikazu](https://appshunter.io/developer/6790925881) | [Daishi Sugawara](https://appshunter.io/developer/6783803841) |

## What reviewers say

### HamLogJP

[App page](https://appshunter.io/ios/app/hamlogjp/id6790925699)

**Features:** Vision Pro support

**In-app purchases:** none


### Hz Lab

[App page](https://appshunter.io/ios/app/hz-lab-frequency-generator/id6802062892)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hz Lab Pro | $1.99 | one-time |


## Frequently asked questions

### Is HamLogJP free?

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

### Is Hz Lab free?

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

### Do HamLogJP or Hz Lab have ads?

Neither HamLogJP nor Hz Lab shows ads.

### Which is updated more often, HamLogJP or Hz Lab?

HamLogJP ships an update every 3 days, and Hz Lab every 2 weeks. Most recently, HamLogJP was updated on October 16, 2026 and Hz Lab on September 29, 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.*