Comparison

MorseScope vs cool

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

Head to head
About

MorseScope

Features
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Decode Morse from sound or flashing light. MorseScope is an offline Morse toolkit for iPhone and iPad. Turn audio, light, and written dots and dashes into text, then build your receiving and sending skills. AUDIO AND WRITTEN MORSE • Decode live microphone audio with automatic carrier and timing estimates, key state, speed, level, and confidence. • Import WAV, MP3, M4A, or AAC; try the built-in sample or translate written Morse. • Play recordings with time-aligned text. Inspect each character's original Morse, confidence, and time; jump to uncertain characters, correct a position, or restore the original. • Decoder Pro adds 1–8Ɨ synchronized spectrograms, carrier focus, timing-supported alternatives, carrier tuning, WPM lock, sensitivity, and filtering. Review the bounded ten-second live waterfall after listening stops. • Keep audio-decoding results in the local Session Library. Source audio and graph data are not saved there. Light-decoding results stay in memory only. LIGHT DECODER Point the rear camera at one flashing screen or flashlight. Move the generous target by touch or accessible controls, allow the signal to calibrate, and follow live Morse and text. Copy the result when finished. Start at 5–7 WPM with a steady phone and a clear source. Lighting, distance, movement, display flicker, and camera timing affect reception. This is for learning and short messages, not emergencies. Camera permission is requested only on Start Camera; no images or video are saved or uploaded. ENCODE AND SEND Turn text into International Morse, play or copy it, and export WAV/M4A audio. Send visible Morse through Screen Flash or the rear Flashlight at up to 7 WPM, without a 60-second cutoff. Haptic output supports transmissions up to 60 seconds. Stop visible output if it causes discomfort. PRACTICE AT YOUR PACE Learn with beginner lessons, Koch character groups, Farnsworth spacing, daily drills, and saved progress. Build custom receive drills and WPM ladders. Practice callsigns, prosigns, Q-codes, QSO exchanges, and sending rhythm with an adaptive CW key. FREE AND PREMIUM Free includes text conversion, beginner and Koch learning, daily practice, selected-character drills, the Send key, Callsigns, and character correction/restore. Free audio playback supports 60 seconds per transmission. Microphone and light decoding allow 30 seconds per session after the first signal lock; later signal loss does not pause that allowance. Free imported files may be up to 30 seconds. Start another free live session whenever you wish. Premium unlocks longer audio playback and decoding, light decoding without a session time limit, WAV/M4A export, Decoder Pro, the complete Session Library, advanced coaching and history, Guided Sending, signal conditions, saved custom presets, and WPM ladders. Choose a weekly auto-renewing subscription or a one-time lifetime purchase. Both unlock the same Premium features; current localized prices appear in the app. PRACTICAL LIMITS Use a clear 300–2,000 Hz audio carrier. Imports support common uncompressed mono/stereo PCM WAV, MP3, and unprotected AAC in M4A or ADTS; protected audio and ALAC are unsupported. Imported files are limited to 10 minutes/128 MB; audio playback and export to 8 minutes. Camera capture runs in the foreground and stops for interruptions, frame stalls, or excessive heat, including with Premium. PRIVATE BY DESIGN Core processing stays on your device. No account, ads, tracking, or analytics. Microphone samples stay in bounded memory and are discarded on Stop. Network access is used for App Store purchases and subscription management. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://whitewhalesoft.com/apps/moorsecodeaudiodecoder/privacy Support: zhaoxiaojian@hotmail.com

About

cool

Features
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cool-radar turns the radios already inside your iPhone into a radar for the devices around you — with no extra hardware, and without inventing a single number. WHAT YOU SEE Nearby Bluetooth LE devices appear as contacts with an estimated distance, a bearing once there is enough geometry to support one, and a ranked guess at what each device actually is. The Wi-Fi card shows the link your phone is really on: type, interface, local address and subnet, the default gateway and the gateway's manufacturer. Where both ends have UWB hardware, distance stops being an estimate and becomes a measurement. HONEST BY DESIGN Every value carries a badge. "Measured" is a hardware reading. "Inferred" is a value the math derived. Distances read "ā‰ˆ 4.5 m" because radio ranging is an estimate, not a ruler. When there is not enough geometry for a direction, the app draws a ring of possible positions and a question mark instead of a convincing-looking arrow. And when iOS simply does not expose something — neighbouring Wi-Fi networks, raw spectrum, Wi-Fi CSI — the app says so instead of filling the gap with fiction. THE MATH INSIDE • Log-distance path-loss inversion, with a per-device exponent that recalibrates itself from the geometry you walk • Kalman filtering with motion-gated noise, so a device that is standing still stops drifting on screen • Robust multilateration with Huber weights, so a single reflection off a wall cannot drag a position across the room • A naive-Bayes hypothesis engine that ranks device types from the broadcast name, company ID, advertised GATT services, transmit power, address policy and advertising cadence — and shows you the evidence behind every guess • Behaviour analytics over the signal time series: advertising interval, jitter, trend and periodicity • Radio tomography that maps excess path loss into an attenuation picture of the space FEATURES • Top-down radar with range rings, pinch to zoom, double tap to reset • Device list with search and type filters • Device card with signal history, ranked hypotheses and the evidence for each • Unwanted-tracker heuristics based on public advertising patterns • CSV export of a session • Full Russian and English, switchable inside the app PRIVACY All sensing and all math run on your iPhone. No account, no analytics, no tracking, no advertising identifier. One optional setting — off until you turn it on — may send a 24-bit manufacturer prefix to a public vendor database to name your router. Nothing else ever leaves the device. Use cool-radar only on networks and devices you are entitled to inspect. It does not decrypt Find My identities, does not enumerate neighbouring Wi-Fi networks, and provides no covert tracking of people. REQUIREMENTS iOS 18 or later. Bluetooth works on every iPhone. UWB distance needs U1/U2 hardware on both devices. Room geometry needs a LiDAR model. Anything unavailable on your hardware is shown as unavailable rather than simulated.

Screenshots

MorseScope4 screens
cool4 screens

Verdict

The call

The clearest difference is in-app purchases: cool at none against MorseScope's 2. On price, 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

Both are free to download. MorseScope sells 2 in-app purchases, starting at $0.99 per 7 days. cool asks for nothing beyond the download.

Scorecard1 real difference Ā· 5 level
MorseScope versus cool: the parameters behind the verdict, then further details
ParameterMorseScopecool
PriceFreeFree
Update frequencyEvery 5 days—
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better18.0
Further details — not scored
Size7 MB4 MB
Age rating4+17+
Developer小偄 čµµZheniy Shacc

In-app purchases

2 purchases

MorseScope

Subscriptions1
  • Premium Weekly$0.997 Days
One-time1
  • Premium Lifetime$9.99
None

cool

No in-app purchases

Questions

Is MorseScope free?
MorseScope is free to download, with in-app purchases available.
Is cool free?
cool is free to download, with no in-app purchases.
Do MorseScope or cool have ads?
Neither MorseScope nor cool shows ads.

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