# DitDah Decoder vs QSL World Logbook

The clearest difference is price: QSL World Logbook at Free against DitDah Decoder's $19.99. QSL World Logbook also leads on update cadence (weekly vs monthly). DitDah Decoder's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

QSL World Logbook is free to download; DitDah Decoder costs $19.99 up front. QSL World Logbook sells 2 in-app purchases, starting at $19.99 per year. DitDah Decoder asks for nothing beyond the download.

DitDah Decoder ships an update monthly, QSL World Logbook weekly. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | DitDah Decoder | QSL World Logbook |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 29 MB | 38 MB |
| Requires iOS | 18.4 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Made by Tim LLC](https://appshunter.io/developer/1859707586) | [iDream Interactive](https://appshunter.io/developer/374442091) |

## What reviewers say

### DitDah Decoder

[App page](https://appshunter.io/ios/app/ditdah-decoder-morse-code-cw/id6756274811)

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

**In-app purchases:** none


### QSL World Logbook

[App page](https://appshunter.io/ios/app/qsl-world-logbook/id6817942472)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QSL World Plan | $19.99 | per year |
| QSL World Pro | $29.99 | per year |


## Frequently asked questions

### Is DitDah Decoder free?

DitDah Decoder costs $19.99, with no in-app purchases.

### Is QSL World Logbook free?

QSL World Logbook is free to download, with in-app purchases available.

### Do DitDah Decoder or QSL World Logbook have ads?

Neither DitDah Decoder nor QSL World Logbook shows ads.

### Which is updated more often, DitDah Decoder or QSL World Logbook?

DitDah Decoder ships an update monthly, and QSL World Logbook weekly. Most recently, DitDah Decoder was updated on October 29, 2026 and QSL World Logbook on October 31, 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.*