# AcoustiTools® vs VOID

The clearest difference is price: VOID at Free against AcoustiTools®'s $39.99. VOID also leads on rating (5.0 vs 4.4). AcoustiTools®'s advantage is update cadence (every 2 months vs every 6 months) and ratings volume (7 vs 1). On review sentiment, ads and in-app purchases there is nothing between them.

VOID is free to download; AcoustiTools® costs $39.99 up front. AcoustiTools® sells 2 one-off in-app purchases and VOID sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

VOID holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: AcoustiTools® has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

AcoustiTools® ships an update every 2 months, VOID every 6 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AcoustiTools® | VOID |
| --- | --- | --- |
| Price | $39.99 | **Free** |
| Rating | [4.4 (7 ratings)](https://appshunter.io/ios/app/acoustitools/id1390068470/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/void-qr-and-file-encryption/id6754666074/reviews)** |
| Number of ratings | **7** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Paid | **Freemium** |
| Size | 158 MB | 19 MB |
| Requires iOS | **13.3** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ACOUSTIC MASTERMINDS INC.](https://appshunter.io/developer/1352604985) | [Mikhail Bukhrashvili](https://appshunter.io/developer/1849540314) |

## 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 |


### VOID

[App page](https://appshunter.io/ios/app/void-qr-and-file-encryption/id6754666074)

Securely encrypt your messages offline with military-grade AES-256 encryption. Customize parameters, use hidden keys for extra protection, and even encode texts into emoji. Your data remains entirely on your device, ensuring complete privacy.

**Highlights:** Offline AES-256 encryption, Customizable encryption parameters, Hidden key (VOID Secret), Emoji text encoding, No internet connection required, No accounts or registration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annual | $5.99 | per year |
| Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is AcoustiTools® free?

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

### Is VOID free?

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

### Which has better reviews, AcoustiTools® or VOID?

VOID is rated higher. AcoustiTools® averages 4.4 out of 5 from 7 ratings, while VOID averages 5.0 from 1 ratings.

### Do AcoustiTools® or VOID have ads?

Neither AcoustiTools® nor VOID shows ads.

### Which is updated more often, AcoustiTools® or VOID?

AcoustiTools® ships an update every 2 months, and VOID every 6 months. Most recently, AcoustiTools® was updated on October 24, 2026 and VOID 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.*