# Black Audio Tool vs Calc

The clearest difference is price: Calc at Free against Black Audio Tool's $1.99. Calc also leads on iOS requirement (12.0 vs 15.6). Black Audio Tool's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

Calc is free to download; Black Audio Tool costs $1.99 up front. Calc sells 3 in-app purchases, starting at $5.99 per 7 days. Black Audio Tool asks for nothing beyond the download.

## The numbers

| Metric | Black Audio Tool | Calc |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/black-audio-tool-bat/id6476655926/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 24 months | — |
| Monetization | Paid | — |
| Size | 1 MB | 110 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Philippe Zay](https://appshunter.io/developer/1200498230) | [Manohar Varu](https://appshunter.io/developer/1741749388) |

## What reviewers say

### Black Audio Tool

[App page](https://appshunter.io/ios/app/black-audio-tool-bat/id6476655926)

This app is a versatile sound generation tool for exploring audio. It allows users to create and control a wide range of sounds, from classic waveforms to various noise colors, with built-in effects for further shaping. Designed for audiophiles, sound designers, and musicians, it offers precise real-time control for creative experimentation.

**Highlights:** Precise waveform generation, Multiple noise colors, Built-in reverb and distortion, Real-time parameter control, Infra sonic and ultra sonic modes, Audio recording to file

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

**In-app purchases:** none


### Calc

[App page](https://appshunter.io/ios/app/calc-ai-math-problem-solver/id6503810403)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ai Math Problem Solve One Week | $5.99 | per 7 days |
| Remake Ai Face Swap One Month | $9.99 | per month |
| Ai Math Problem Solve Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Black Audio Tool free?

Black Audio Tool costs $1.99, with no in-app purchases.

### Is Calc free?

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

### Do Black Audio Tool or Calc have ads?

Calc shows ads; Black Audio Tool does not.

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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.*