Comparison

MorseKeyer vs Offline Spotter for POTA/SOTA

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

Head to head
About

MorseKeyer

This app simulates an electronic telegraph keyer with a dual-lever paddle for sending Morse code. It offers various keying modes, buffers paddle presses for higher speeds, and displays transmitted symbols, including international Morse code and extensions for multiple languages. It also recognizes and formats abbreviations used in amateur radio and other communications.

Highlights
  • Dual-lever paddle simulation
  • Dot and dash memories
  • Multiple keying modes (iambic, ultimatic, bug)
  • Buffered paddle presses for speed
  • Support for international Morse code and language extensions
  • Recognition of CW abbreviations and prosigns
  • Smart text formatting and dynamic alphabet switching
Currently charting
Read full description

The app operates like a real electronic keyer with a dual-lever paddle, dot and dash memories and various keying modes including "iambic". It produces a series of short sound signals (dots) when one of the paddles is pressed and a series of long signals (dashes) when the other one is pressed. Letters, digits, procedural signals (prosigns) and other transmitted symbols are displayed on the screen. Additionally, Morse code abbreviations used in amateur radio, maritime, aviation and military communications are recognized and formatted appropriately. ADVANCED CW KEYER The keyer buffers paddle presses, that eases the manipulation and helps to transmit at higher speeds. High accuracy of generated signals contributes to high-quality transmission of Morse code. Keying modes: - Ultimatic — "last paddle wins" - Iambic (modes A and B) - Single lever - Semi-automatic, aka "bug" EXTENDED MORSE CODE When displaying the transmitted text, the app "knows" in addition to International Morse code a number of extensions for different languages. Supported alphabets include Japanese (Wabun code), Greek, Cyrillic-based and Latin-based alphabets with diacritical marks. The app recognizes details and nuances of Morse code for the following alphabets: Belarusian, Bosnian, Bulgarian, Croatian, Czech, Danish, Dutch, English, Esperanto, Estonian, Finnish, French, German, Greek, Hungarian, Icelandic, Italian, Japanese, Latvian, Lithuanian, Macedonian, Moldovan, Montenegrin, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swedish, Turkish, Ukrainian. SMART DISPLAY MorseKeyer does a lot to display the Morse code you transmit in the most readable form. For this purpose the app is equipped with the following functions: - Sophisticated text formatting - Dynamic switching between alphabets - Reasonable representation of errors These innovative features use multilevel content analysis to detect CW abbreviations, Q-codes, Z-codes, amateur radio callsigns and other special words. SOPHISTICATED TEXT FORMATTING The transmitted text can be displayed not only in the traditional all-capital format, but also using a kind of "smart" formatting. In this mode each word is displayed in the accepted form, as in the following CW session snippet: GM dr OM tnx fer call = ur RST is 599 = my QTH is nr London DYNAMIC SWITCHING BETWEEN ALPHABETS Even if you choose to use a non-Lating version of Morse code in your communication session, special words and Morse code abbreviations still can be displayed in Latin script. - In Wabun code the prosigns DO and SN as well as codes for Japanese parenthesis indicate switching between International and Japanese alphabets. MorseKeyer follows this convention and switches alphabets in such cases automatically. - A Cyrillic alphabet can be selected as the primary one to display most of the transmitted text, but all Morse code abbreviations and special words (CQ, de, ur, RST, my, QTH, name, tnx, etc.) as well as callsigns can still be represented in Latin script. REASONABLE REPRESENTATION OF ERRORS If you transmit a non-existent Morse code sign, the app displays it either as a dot-dash sequence or in another form depending on the current settings. In many cases MorseKeyer highlights a mistake, indicating its source and making it readable. ADVANCED SETTINGS MorseKeyer is ready to use out of the box. However, it has a lot of settings allowing you to fine tune it, customize and make more convenient in different use cases. NICE SOUND A special attention in the app is paid to the sound signal quality, its timbre, the optimal level of clicks and other characteristics, that make the sound of Morse code authentic and recognizable by any radio operator and comfortable to listen to.

About

Offline Spotter for POTA/SOTA

This app helps Parks on the Air and Summits on the Air enthusiasts send spotting messages even without cell service. It utilizes iPhone's SMS over Satellite feature to communicate with the APSPOT spotting service, allowing users to log their callsign, frequency, and mode from remote locations.

Highlights
  • Send spotting messages without cell coverage
  • Leverages SMS over Satellite
  • Locate nearby parks or summits
  • Enter callsign, frequency, and mode
  • Supports APSPOT spotting service
Read full description

Spot Yourself Anywhere with Offline Spotter! Whether you’re relaxing on a beach or scaling a mountaintop, Offline Spotter is your go-to app for POTA (Parks on the Air) and SOTA (Summits on the Air) enthusiasts. Designed to leverage the iPhone’s SMS over Satellite feature, Offline Spotter lets you send spotting messages even without cell coverage by crafting an SMS to the APSPOT spotting service. Simple and Reliable: • Locate nearby parks or summits with ease. • Enter your callsign, frequency, and mode. • Send your SMS—over satellite or traditional networks! Support for the Community: We’re proud supporters of APSPOT’s mission. That’s why all SMS costs incurred by APSPOT will be fully covered by our proceeds. Get Offline Spotter today and ensure you’re always connected to the amateur radio community, no matter where your adventures take you!

Screenshots

MorseKeyer4 screens
Offline Spotter for POTA/SOTA4 screens

Verdict

The call

The clearest difference is review sentiment: Offline Spotter for POTA/SOTA at 60% against MorseKeyer's 0%. Offline Spotter for POTA/SOTA also leads on price ($0.99 vs $7.99) and update cadence (weekly vs every 42 months). MorseKeyer's advantage is chart position (#194 vs unranked) and device support (3 vs 1). On ads, in-app purchases and monetization model there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

MorseKeyer costs $7.99 and Offline Spotter for POTA/SOTA $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

MorseKeyer ships an update every 42 months, Offline Spotter for POTA/SOTA weekly. The most recent releases landed on August 26, 2026 and September 19, 2026 respectively.

Scorecard6 real differences · 5 level
MorseKeyer versus Offline Spotter for POTA/SOTA: the parameters behind the verdict, then further details
ParameterMorseKeyerOffline Spotter for POTA/SOTA
Price$7.99$0.99 — better
Rating3.9 (13 ratings) — better
Positive reviews0.0% of reviews60.0% of reviews — better
Number of ratings13 — better
Update frequencyEvery 42 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#194 — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better18.0
Further details — not scored
Size3 MB34 MB
Age rating4+4+
DeveloperYuri WolfKristopher Linquist

Customer experience

MorseKeyer

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Offline Spotter for POTA/SOTA

All ratings13 ratings
Positive69.2%
Neutral7.7%
Negative23.1%
Written reviews10 reviews
Positive60.0%
Neutral10.0%
Negative30.0%

In-app purchases

None

MorseKeyer

No in-app purchases

None

Offline Spotter for POTA/SOTA

No in-app purchases

Questions

Is MorseKeyer free?
MorseKeyer costs $7.99, with no in-app purchases.
Is Offline Spotter for POTA/SOTA free?
Offline Spotter for POTA/SOTA costs $0.99, with no in-app purchases.
Do MorseKeyer or Offline Spotter for POTA/SOTA have ads?
Neither MorseKeyer nor Offline Spotter for POTA/SOTA shows ads.
Which is updated more often, MorseKeyer or Offline Spotter for POTA/SOTA?
MorseKeyer ships an update every 42 months, and Offline Spotter for POTA/SOTA weekly. Most recently, MorseKeyer was updated on August 26, 2026 and Offline Spotter for POTA/SOTA on September 19, 2026.

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