Comparison

DitDah Decoder vs QSL World Logbook

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DitDah Decoder

Features
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DitDah Decoder is a professional-grade Morse code communication tool designed for amateur radio operators and CW enthusiasts. Using advanced technology, it decodes Morse code from audio in real-time and lets you send messages back. DECODE MORSE CODE • Real-time audio decoding from your microphone or use an external adapter to receive directly from your radio • Q-code and abbreviation translation • Saves audio recordings of your decoding sessions • Autocorrect button for reprocessing of saved audio files using neural networks SEND MORSE CODE • Type messages and transmit as Morse code audio • Adjustable frequency and speed (WPM) • Repeat send mode for calling CQ • Use an external adapter to transmit directly via your radio • Two people using the app can easily send messages back and forth on the air COMPLETE LOGBOOK • Automatic call sign detection with country lookup • Organized by date and call sign • Tap on any call sign to see stats • QSO tracking and confirmation • Adif export Whether you're a licensed amateur radio operator working CW on the bands or learning Morse code, DitDah Decoder provides the tools you need for two-way Morse communication.

About

QSL World Logbook

Features
Read full description

QSL World Logbook is the ham radio logbook for iPhone and iPad: the same log you keep on qslworld.com and in Ham Browser, in your pocket. LOG FAST, ANYWHERE • Quick-log bar: type a callsign and reports, tap Log. UTC clock, band from frequency, duplicate check. • Callsign lookup fills in name, grid and country. • Works offline: your whole log lives on the device, and contacts logged without signal are sent when you are back online. • Every logbook type: general, contest, POTA, SOTA and more. SEE YOUR CONTACTS • Watch every contact fly: the path from your station to theirs, animated across the globe. • QSO map with clusters and paths around your QTH. • Grey line, solar and propagation data, and amateur satellites overhead. QSL CARDS AND CONFIRMATIONS • Send your QSL World card to any contact and see every card you receive. • LoTW, QRZ and eQSL confirmations pulled in automatically. LIVE ON THE AIR • DX cluster and POTA spots, in a list or on the map. Tap a spot to log it. • A watch list that tells you when a station you want is spotted. • Radio control (CAT) through Bluetooth adapters, Hamlib rigctld or flrig. GRID RUSH • The grid squares you have worked become a game: a spinning globe, scores, badges, a worldwide ladder and Recon for every square. PLANS The logbook is free. QSL World Plan adds maps and flight paths, QSL cards, the QSL Card Design Studio, every logbook type and membership on qslworld.com. QSL World Pro adds Grid Rush, radio control, shared logs, several callsigns and ADIF import and export. Subscriptions are yearly and renew automatically unless cancelled at least 24 hours before the end of the current period. Payment is charged to your Apple Account. Manage or cancel in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://qslworld.com/app-privacy/ One account everywhere: sign in with your qslworld.com or Ham Browser account, or create one in the app. 73!

Screenshots

DitDah Decoder4 screens
QSL World Logbook4 screens

Verdict

The call

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.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

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.

UpkeepUpdate frequency

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

Scorecard3 real differences Ā· 3 level
DitDah Decoder versus QSL World Logbook: the parameters behind the verdict, then further details
ParameterDitDah DecoderQSL World Logbook
Price$19.99Free — better
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.417.0 — better
Further details — not scored
Size29 MB38 MB
Age rating4+4+
DeveloperMade by Tim LLCiDream Interactive

In-app purchases

None

DitDah Decoder

No in-app purchases

2 purchases

QSL World Logbook

Subscriptions2
  • QSL World Plan$19.991 Year
  • QSL World Pro3 Days trial$29.991 Year

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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