Comparison

Feld Hellschreiber vs Morse Code Reader and Decoder

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

Head to head
About

Feld Hellschreiber

This app decodes and transmits text messages using the historical Hellschreiber system, which sends characters as audio signals. It's ideal for amateur radio operators and enthusiasts interested in vintage communication methods. The app allows for both manual text entry and pre-set messages, with adjustable display contrast for optimal viewing.

Highlights
  • Decode Hellschreiber messages
  • Transmit text messages
  • Canned text message support
  • Adjustable display contrast
  • Real-time text scrolling
  • Audio input/output via device mic/speaker
Features
Read full description

Hellschreiber is a teleprinter system, developed in the 1920s, that transmits text via sound, much like an old facsimile (fax) system. Each pixel of a character is transmitted as a short burst of audio. It works even under very noisy and poor reception conditions, because your brain does the work of analyzing the received image to pick out the characters. It was used by the German military during World War II to send messages encrypted by ENIGMA machines. Today it is used by amateur (ham) radio operators around the world to send messages to each other via shortwave radio. Feld Hellschreiber literally means "bright field recorder". Hellschreiber is sometimes referred to as simply Hell. Feld Hellschreiber lets you decode and transmit Feld Hell messages. Decoded text is continuously scrolled across the top of the display. You can type in text to transmit, or press a button to easily send canned text messages, such as CQ calls. Sound is picked up from your radio's speaker via the internal mic in your device, and transmitted audio comes out the speaker - you can also connect a patch cable to your radio's mic input via the headphone jack on your device to transmit the audio, if you wish. The slider control adjusts the display contrast, and the indicator to the right shows the volume. Adjust the slider for the best display. To transmit text, touch on the text entry field, and start typing. Each character will be sent when possible. When sent, it will be taken off the left end of this field, and displayed on the right end of the transmitted text field, to the left of the entry field, in a scrolling fashion. Canned text buttons are also available, touch one to send the text stored for that button. To edit a button, touch the Setup button, and then select the button you wish to edit. You can edit the name of the button, as well as the text. To decode transmissions, you just need to run the app, and set it near the radio's speaker or headphones, and watch the decoded text appear. It's that easy!

About

Morse Code Reader and Decoder

Convert text to Morse code and vice versa. Transmit messages using flashlight, screen blinking, vibration, or sound. Includes practice modes for learning Morse code.

Highlights
  • Text to Morse code conversion
  • Morse code to text conversion
  • Flashlight transmission
  • Screen blinking transmission
  • Vibration transmission
  • Sound effect transmission
  • Morse code practice modes
Features
Read full description

Do you need a perfect tool for converting text into Morse Code and vice versa? And do you want that tool to transmit Morse Code in four different ways? Then, this is the right app for you! This app will convert any text into Morse Code which you can transmit via flashlight, screen blinking, vibration and sound effects. If you need to convert Morse Code into regular text, that is also possible. Give this app a try immediately and enjoy its fabulous design and great functionality. NEW FEATURES ADDED: - Practice and learn Morse code - 3 difficulty levels - Practice letters, words and sentences - Converting text into Morse Code - Converting Morse Code into text - Transmitting Morse Code in four different ways: - Via Flashlight - Via Screen Blinking - Via Vibration - Via Sound Effects Everything you need for using Morse Code in just one app, right on your iPhone. Use this application to send various signals and, if you want, you can save them, too. Download this app now and explore all its features. ---------- Pro Morse Code Subscription Conditions: - Your subscription lasts 1 month, 6 months, or 1 year, depending on the subscription level chosen at the time of purchase. - You will be charged $2.99 for 1 month, $17.49 for 6 months, $19.99 for 1 year, depending on the subscription level chosen at the time of purchase. - Payment will be charged to your iTunes Account at confirmation of purchase. - Your subscription automatically renews unless auto-renewal is turned off at least 24 hours before the end of the current subscription. - Your account will be charged for a renewed subscription within 24 hours prior to the end of current subscription. You will be charged $2.99 for 1 month, $17.49 for 6 months, or $19.99 for 1 year, depending on your subscription level. - You can manage your subscription and switch off the auto-renewal by accessing your account settings after purchase. - You cannot cancel the current subscription during the active subscription period. - Any unused part or time-span of a free trial period will be forfeited, as soon as you purchase a subscription. - You can view our Privacy Policy here: https://bataboki018.wixsite.com/ivanantic/copy-of-privacy-policy - You can view our Terms of Use here: https://bataboki018.wixsite.com/ivanantic/trems-of-use

Screenshots

Feld Hellschreiber1 screens
Morse Code Reader and Decoder4 screens

Verdict

The call

The clearest difference is price: Morse Code Reader and Decoder at Free against Feld Hellschreiber's $2.99. Morse Code Reader and Decoder also leads on rating (4.4 vs 2.8) and update cadence (every 2 months vs every 13 months). Feld Hellschreiber's advantage is review sentiment (75% vs 30%) and in-app purchases (none vs 7). On device support 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

Morse Code Reader and Decoder is free to download; Feld Hellschreiber costs $2.99 up front. Morse Code Reader and Decoder sells 7 in-app purchases, starting at $2.99 per month. Feld Hellschreiber asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Morse Code Reader and Decoder holds the better App Store score, 4.4 against 2.8. That said, the two scores are not equally well evidenced: Morse Code Reader and Decoder has 2.4K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 75% of Feld Hellschreiber's written reviews are positive against 30% of Morse Code Reader and Decoder's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Feld Hellschreiber ships an update every 13 months, Morse Code Reader and Decoder every 2 months. The most recent releases landed on September 20, 2026 and October 4, 2026 respectively.

Scorecard9 real differences · 1 level
Feld Hellschreiber versus Morse Code Reader and Decoder: the parameters behind the verdict, then further details
ParameterFeld HellschreiberMorse Code Reader and Decoder
Price$2.99Free — better
Rating2.8 (5 ratings)4.4 (2.4K ratings) — better
Positive reviews75.0% of reviews — better30.2% of reviews
Number of ratings52.4K — better
Update frequencyEvery 13 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.0 — better15.0
Further details — not scored
Size4 MB11 MB
Age rating4+4+
DeveloperBlack Cat SystemsIvan Antic

Customer experience

Feld Hellschreiber

All ratings5 ratings
Positive40.0%
Neutral0.0%
Negative60.0%
Written reviews16 reviews
Positive75.0%
Neutral12.5%
Negative12.5%

Morse Code Reader and Decoder

All ratings2,418 ratings
Positive83.8%
Neutral5.9%
Negative10.3%
Written reviews189 reviews
Positive30.2%
Neutral10.6%
Negative59.3%

Bugs and requests

Feld Hellschreiber

Not enough reviews yet to summarise bugs or requests.

Morse Code Reader and Decoder

Reported bugs

3 issues
  • Freezes/crashes during use
  • Conversion issues (incorrect translations)
  • Sound not working

Requested features

4 requests
  • Add flashlight/camera Morse code translator
  • Allow adjusting dot/dash timing
  • Add sound settings (tone, frequency)
  • Improve learning mode/progression

In-app purchases

None

Feld Hellschreiber

No in-app purchases

7 purchases

Morse Code Reader and Decoder

Subscriptions3
  • Morse Code Monthly$2.991 Month
  • Pro Morse Code 6 Months$17.496 Months
  • Morse Code Pro Annually$19.991 Year
One-time4
  • Remove Ads$1.99
  • Intermediate tutorial$1.99
  • Advanced tutorial$2.99
Show 1 more
  • Morse Code Pro$3.99

Questions

Is Feld Hellschreiber free?
Feld Hellschreiber costs $2.99, with no in-app purchases.
Is Morse Code Reader and Decoder free?
Morse Code Reader and Decoder is free to download, with in-app purchases available.
Which has better reviews, Feld Hellschreiber or Morse Code Reader and Decoder?
Morse Code Reader and Decoder is rated higher. Feld Hellschreiber averages 2.8 out of 5 from 5 ratings, while Morse Code Reader and Decoder averages 4.4 from 2.4K ratings.
Do Feld Hellschreiber or Morse Code Reader and Decoder have ads?
Morse Code Reader and Decoder shows ads; Feld Hellschreiber does not.
Which is updated more often, Feld Hellschreiber or Morse Code Reader and Decoder?
Feld Hellschreiber ships an update every 13 months, and Morse Code Reader and Decoder every 2 months. Most recently, Feld Hellschreiber was updated on September 20, 2026 and Morse Code Reader and Decoder on October 4, 2026.

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