# AcoustiTools® vs Inductor Calculator Master

The clearest difference is price: Inductor Calculator Master at Free against AcoustiTools®'s $39.99. Inductor Calculator Master also leads on update cadence (daily vs every 2 months). AcoustiTools®'s advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Inductor Calculator Master is free to download; AcoustiTools® costs $39.99 up front. AcoustiTools® sells 2 one-off in-app purchases and Inductor Calculator Master sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

AcoustiTools® ships an update every 2 months, Inductor Calculator Master daily. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AcoustiTools® | Inductor Calculator Master |
| --- | --- | --- |
| Price | $39.99 | **Free** |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/acoustitools/id1390068470/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Paid | — |
| Size | 158 MB | 33 MB |
| Requires iOS | 13.3 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ACOUSTIC MASTERMINDS INC.](https://appshunter.io/developer/1352604985) | [Le Minh Tran](https://appshunter.io/developer/1896777000) |

## What reviewers say

### AcoustiTools®

[App page](https://appshunter.io/ios/app/acoustitools/id1390068470)

This app provides professional-grade audio analysis and diagnostic tools using augmented reality. It helps map sound levels, calculate delay timing, and offers corrective EQ settings for live sound, studios, car audio, and home theater.

**Highlights:** Augmented Reality Spatial Analyzer, Volume Mapping and Variance, Delay Timing Calculation, Diagnostic Parametric EQ (IAP), Diagnostic Graphic EQ (IAP), Real-Time Frequency Analyzer

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diagnostic PEQ | $19.99 | one-time |
| Diagnostic GEQ | $19.99 | one-time |


### Inductor Calculator Master

[App page](https://appshunter.io/ios/app/inductor-calculator-master/id6772124135)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Premium Upgrade | $1.99 | one-time |


## Frequently asked questions

### Is AcoustiTools® free?

AcoustiTools® costs $39.99, and also offers in-app purchases.

### Is Inductor Calculator Master free?

Inductor Calculator Master is free to download, with in-app purchases available.

### Do AcoustiTools® or Inductor Calculator Master have ads?

Inductor Calculator Master shows ads; AcoustiTools® does not.

### Which is updated more often, AcoustiTools® or Inductor Calculator Master?

AcoustiTools® ships an update every 2 months, and Inductor Calculator Master daily. Most recently, AcoustiTools® was updated on November 2, 2026 and Inductor Calculator Master on October 31, 2026.

---

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