SAR Calculator vs cwTime Practice
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SAR Calculator
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This app provides a quick and easy tool to perform some of the common calculations used in Search and Rescue. Initially, it will perform a calculation for the ideal team spacing on a visual sweep based on Range of Detection, and an estimation of the time required to complete a visual sweep assignment. Additional tools will be added in the future. To request a tool, contact the developer or leave a comment in the store!
cwTime Practice
This utility app simulates an Iambic Keyer for Morse code practice. Users can tap paddles to send dits and dahs, access a Morse code dictionary, and adjust keyer settings like speed and tone frequency.
- Iambic Keyer simulation
- Morse code dictionary
- Adjustable WPM speed
- Adjustable tone frequency
- Clear log function
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This is a Iambic Keyer. Press the left paddle (blue) for dit and the right paddle (green). Press the red trash icon to clear the log, the blue book icon for the morse code dictionary (letters and abbreviations), and the gray gear icon to change key settings including the speed of the keyer in WPM and the frequency of the tone.
Screenshots
Verdict
The clearest difference is update cadence: cwTime Practice at every 3 months against SAR Calculator's every 13 months. SAR Calculator's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 18.6). On price, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SAR Calculator ships an update every 13 months, cwTime Practice every 3 months. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.
| Parameter | SAR Calculator | cwTime Practice |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 13 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 32 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Dylan Baker | Jett Mu |
In-app purchases
SAR Calculator
No in-app purchases
cwTime Practice
No in-app purchases
Questions
Is SAR Calculator free?
Is cwTime Practice free?
Do SAR Calculator or cwTime Practice have ads?
Which is updated more often, SAR Calculator or cwTime Practice?
Other comparisons
