# Harmonic Wave Equation Calc vs ScanAce

The clearest difference is price: ScanAce at Free against Harmonic Wave Equation Calc's $2.99. ScanAce also leads on update cadence (every 4 months vs every 31 months). Harmonic Wave Equation Calc's advantage is in-app purchases (none vs 2) and iOS requirement (13 vs 16.6). On ads and device support there is nothing between them.

ScanAce is free to download; Harmonic Wave Equation Calc costs $2.99 up front. ScanAce sells 2 in-app purchases, starting at $49.99 per month. Harmonic Wave Equation Calc asks for nothing beyond the download.

Harmonic Wave Equation Calc ships an update every 31 months, ScanAce every 4 months. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Harmonic Wave Equation Calc | ScanAce |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/harmonic-wave-equation-calc/id1412323951/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 4 months** |
| Monetization | Paid | — |
| Size | 1 MB | 106 MB |
| Requires iOS | **13** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [ITS Geo Solutions GmbH](https://appshunter.io/developer/1362963860) |

## What reviewers say

### Harmonic Wave Equation Calc

[App page](https://appshunter.io/ios/app/harmonic-wave-equation-calc/id1412323951)

This physics and math calculator quickly determines wave properties like displacement, velocity, and amplitude. It provides instant calculations with copyable results and includes reference formulas. Optimized for everyday use, it supports high precision and various units.

**Highlights:** Instant wave calculations, Copyable results, Included reference formulas, Supports 16 decimal places, Multiple unit support, Ad-free and private

**Features:** macOS Compatibility

**In-app purchases:** none


### ScanAce

[App page](https://appshunter.io/ios/app/scanace/id1545231520)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional - Monthly | $49.99 | per month |
| Professional - Annual | $399.99 | per year |


## Frequently asked questions

### Is Harmonic Wave Equation Calc free?

Harmonic Wave Equation Calc costs $2.99, with no in-app purchases.

### Is ScanAce free?

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

### Do Harmonic Wave Equation Calc or ScanAce have ads?

Neither Harmonic Wave Equation Calc nor ScanAce shows ads.

### Which is updated more often, Harmonic Wave Equation Calc or ScanAce?

Harmonic Wave Equation Calc ships an update every 31 months, and ScanAce every 4 months. Most recently, Harmonic Wave Equation Calc was updated on October 10, 2026 and ScanAce on October 25, 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.*