Comparison

Decay Lab vs Morse Light APP

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

Head to head
About

Decay Lab

Features
Read full description

DecayLab makes radionuclide decay calculations and radiation unit conversions quick and straightforward. Designed for nuclear medicine professionals, researchers, educators, and students, it provides a clean, focused workflow that works entirely offline. Key features: • Calculate radioactive decay for a wide range of radionuclides • View activity at different reference and calculation times • Apply decay corrections quickly and consistently • Work with Bq, kBq, MBq, GBq and TBq, alongside nCi, µCi, mCi and Ci • Convert absorbed dose in Gy and rad, and equivalent dose in Sv and rem • Convert dose rates per second, minute, hour or day • See one value in every other unit at once, rather than one pair at a time • Access built-in radionuclide half-life data for 1,625 nuclides • Use all calculation features without an internet connection Gray and sievert are kept in separate tables. Converting between them requires a radiation weighting factor, which is a judgement about radiation type rather than a unit conversion, so DecayLab does not offer it. DecayLab is useful for: • Nuclear medicine technologists • Medical physicists • Radiation safety professionals • Researchers and educators • Students in nuclear medicine and related fields Whether you're checking an activity value, preparing calculations for a workflow, or studying radioactive decay, DecayLab keeps the process clear and efficient. Important: DecayLab is a calculation and educational tool. Results should be independently verified before being used in clinical, diagnostic, therapeutic, or safety-critical decisions.

About

Morse Light APP

Instantly transform your device into a Morse code transmitter. Ideal for emergencies, outdoor activities, or sending discreet messages.

Highlights
  • Morse code transmission
  • Emergency communication
  • Outdoor adventure signaling
  • Secret message sending
  • Device as transmitter
Features
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Communicate without saying a word. Morse Light instantly transforms your device into a powerful Morse code transmitter, perfect for emergencies, outdoor adventures, or sending secret signals.

Screenshots

Decay Lab4 screens
Morse Light APP4 screens

Verdict

The call

The clearest difference is update cadence: Decay Lab at every 4 days against Morse Light APP's every 8 days. Morse Light APP's advantage is iOS requirement (15.6 vs 17.0). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Decay Lab ships an update every 4 days, Morse Light APP every 8 days. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 7 level
Decay Lab versus Morse Light APP: the parameters behind the verdict, then further details
ParameterDecay LabMorse Light APP
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 4 days — betterEvery 8 days
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.6 — better
Further details — not scored
Size6 MB3 MB
Age rating4+9+
DeveloperCarlos Uribe文云 吴

In-app purchases

None

Decay Lab

No in-app purchases

None

Morse Light APP

No in-app purchases

Questions

Is Decay Lab free?
Decay Lab is free to download, with no in-app purchases.
Is Morse Light APP free?
Morse Light APP is free to download, with no in-app purchases.
Do Decay Lab or Morse Light APP have ads?
Neither Decay Lab nor Morse Light APP shows ads.
Which is updated more often, Decay Lab or Morse Light APP?
Decay Lab ships an update every 4 days, and Morse Light APP every 8 days. Most recently, Decay Lab was updated on October 19, 2026 and Morse Light APP on October 15, 2026.

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