# AcoustiTools® vs imp™

The clearest difference is price: imp™ at Free against AcoustiTools®'s $39.99. imp™ also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 2). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

imp™ is free to download; AcoustiTools® costs $39.99 up front. AcoustiTools® sells 2 one-off in-app purchases. imp™ asks for nothing beyond the download.

imp™ holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 7 and 12 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on July 13, 2026 and June 3, 2026 respectively.

## The numbers

| Metric | AcoustiTools® | imp™ |
| --- | --- | --- |
| Price | $39.99 | **Free** |
| Rating | [4.4 (7 ratings)](https://appshunter.io/ios/app/acoustitools/id1390068470/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/imp-imp-box-controller/id1509443801/reviews)** |
| Number of ratings | 7 | **12** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | **Free** |
| Size | 158 MB | 36 MB |
| Requires iOS | 13.3 | **12.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ACOUSTIC MASTERMINDS INC.](https://appshunter.io/developer/1352604985) | [Its My Phone, Inc](https://appshunter.io/developer/1509443800) |

## 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 |


### imp™

[App page](https://appshunter.io/ios/app/imp-imp-box-controller/id1509443801)

This app works with a smart home device to filter unwanted landline calls, allowing only desired contacts to reach you. It also functions as a remote answering machine for your landline, letting you manage voicemails from anywhere.

**Highlights:** Real-time call filtering, Greenlist Technology™, Syncs iPhone contacts, Remote voicemail access, Do Not Disturb mode, Invite others to landline

**In-app purchases:** none


## Frequently asked questions

### Is AcoustiTools® free?

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

### Is imp™ free?

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

### Which has better reviews, AcoustiTools® or imp™?

imp™ is rated higher. AcoustiTools® averages 4.4 out of 5 from 7 ratings, while imp™ averages 5.0 from 12 ratings.

### Do AcoustiTools® or imp™ have ads?

Neither AcoustiTools® nor imp™ shows ads.

### Which is updated more often, AcoustiTools® or imp™?

AcoustiTools® ships an update every 2 months, and imp™ every 2 months. Most recently, AcoustiTools® was updated on July 13, 2026 and imp™ on June 3, 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.*