# leaDCalc vs Clear Wave

The clearest difference is rating: leaDCalc at 5.0 against Clear Wave's 4.5. leaDCalc also leads on in-app purchases (none vs 3). Clear Wave's advantage is update cadence (weekly vs every 11 months) and ratings volume (38 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Clear Wave sells 3 in-app purchases, starting at $4.99 per 7 days. leaDCalc asks for nothing beyond the download.

leaDCalc holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Clear Wave has 38 ratings behind it against 1, so its average is the more settled of the two.

leaDCalc ships an update every 11 months, Clear Wave weekly. The most recent releases landed on September 29, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | leaDCalc | Clear Wave |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/leadcalc/id1487509498/reviews)** | [4.5 (38 ratings)](https://appshunter.io/ios/app/clear-wave-hz-frequency/id6476298038/reviews) |
| Number of ratings | 1 | **38** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 157 MB | 33 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Vaughn Warriner](https://appshunter.io/developer/1487509497) | [涛 姚](https://appshunter.io/developer/1742784257) |

## What reviewers say

### leaDCalc

[App page](https://appshunter.io/ios/app/leadcalc/id1487509498)

This app calculates direct current power lead sizes for telephone company central office power plants. It uses a circular slide rule format to determine allowable voltage drops and wire sizes based on specific system parameters.

**Highlights:** Circular slide rule format, Calculates allowable voltage drops, Determines DC power lead sizes, Supports 48V and 24V DC systems, References Bell System calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### Clear Wave

[App page](https://appshunter.io/ios/app/clear-wave-hz-frequency/id6476298038)

This app offers tools to test and analyze your device's audio performance. Measure sound intensity, generate tones, and test stereo balance and frequency response. Optimize your device's sound output with user-friendly features.

**Highlights:** dB Meter for sound intensity, Tone Generator for sound frequencies, Stereo Test for speaker balance, Frequency Test for device performance, Sound Level Measurement, Local data processing

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week | $4.99 | per 7 days |
| 1 Month | $14.99 | per month |
| 3 Months | $29.99 | per 3 months |


## Frequently asked questions

### Is leaDCalc free?

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

### Is Clear Wave free?

Clear Wave is free to download, with in-app purchases available.

### Which has better reviews, leaDCalc or Clear Wave?

leaDCalc is rated higher. leaDCalc averages 5.0 out of 5 from 1 ratings, while Clear Wave averages 4.5 from 38 ratings.

### Do leaDCalc or Clear Wave have ads?

Neither leaDCalc nor Clear Wave shows ads.

### Which is updated more often, leaDCalc or Clear Wave?

leaDCalc ships an update every 11 months, and Clear Wave weekly. Most recently, leaDCalc was updated on September 29, 2026 and Clear Wave on October 12, 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.*