Comparison

Watt vs DitDah Decoder

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

Head to head
About

Watt

Easily calculate wattage using three different formulas. Input values and get instant results, with options to copy or email your calculations. Features an intuitive design for a smooth and reliable user experience.

Highlights
  • Calculate watt from 3 formulas
  • Copy and paste results
  • Send results via email
  • Formulas always visible
  • Intuitive graphics
  • Ease of use
Features
Read full description

Finally a way much faster to calculate watt from 3 different formulas. Just open Watt, and choose the most suitable formula between the 3 and type the values that compose it. This is all. The App will calculate the result immediately. You can copy the solution or send it by email. With an intuitive design this application provides a pleasant experience and reliability in its use. [ Features ] • Calculate watt from 3 different formula • Copy and paste the result • Send the result by email • Formulas always visible to never forget • Graphics intuitive • Ease of use [ Support ] If you like the app, don’t forget to leave us a review on the App Store. For suggestions please contact us at info@lionsapp.com, or visit lionsapp.com.

About

DitDah Decoder

Features
Read full description

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.

Screenshots

Watt4 screens
DitDah Decoder4 screens

Verdict

The call

The clearest difference is price: Watt at $1.99 against DitDah Decoder's $19.99. DitDah Decoder's advantage is update cadence (monthly vs every 18 months) and iOS requirement (18.4 vs 26.0). On ads, in-app purchases and 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

Watt costs $1.99 and DitDah Decoder $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Watt ships an update every 18 months, DitDah Decoder monthly. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

Scorecard3 real differences · 6 level
Watt versus DitDah Decoder: the parameters behind the verdict, then further details
ParameterWattDitDah Decoder
Price$1.99 — better$19.99
Rating4.7 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 18 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.018.4 — better
Further details — not scored
Size3 MB29 MB
Age rating4+4+
DeveloperLionsApp di Nallbati EltonTimothy Diehl

In-app purchases

None

Watt

No in-app purchases

None

DitDah Decoder

No in-app purchases

Questions

Is Watt free?
Watt costs $1.99, with no in-app purchases.
Is DitDah Decoder free?
DitDah Decoder costs $19.99, with no in-app purchases.
Do Watt or DitDah Decoder have ads?
Neither Watt nor DitDah Decoder shows ads.
Which is updated more often, Watt or DitDah Decoder?
Watt ships an update every 18 months, and DitDah Decoder monthly. Most recently, Watt was updated on October 8, 2026 and DitDah Decoder on October 2, 2026.

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