# SAR Calculator vs cwTime Practice

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.

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.

## The numbers

| Metric | SAR Calculator | cwTime Practice |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/cwtime-practice/id6747887944/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 32 MB | 0 MB |
| Requires iOS | **9.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dylan Baker](https://appshunter.io/developer/1197058787) | [Jett Mu](https://appshunter.io/developer/1823195995) |

## What reviewers say

### SAR Calculator

[App page](https://appshunter.io/ios/app/sar-calculator/id1502319814)

**Features:** macOS Compatibility

**In-app purchases:** none


### cwTime Practice

[App page](https://appshunter.io/ios/app/cwtime-practice/id6747887944)

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.

**Highlights:** Iambic Keyer simulation, Morse code dictionary, Adjustable WPM speed, Adjustable tone frequency, Clear log function

**In-app purchases:** none


## Frequently asked questions

### Is SAR Calculator free?

SAR Calculator is free to download, with no in-app purchases.

### Is cwTime Practice free?

cwTime Practice is free to download, with no in-app purchases.

### Do SAR Calculator or cwTime Practice have ads?

Neither SAR Calculator nor cwTime Practice shows ads.

### Which is updated more often, SAR Calculator or cwTime Practice?

SAR Calculator ships an update every 13 months, and cwTime Practice every 3 months. Most recently, SAR Calculator was updated on October 25, 2026 and cwTime Practice on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*