# DD Toolbox vs Diffeq Solver

The clearest difference is iOS requirement: DD Toolbox at 12.0 against Diffeq Solver's 18.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | DD Toolbox | Diffeq Solver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (12 ratings)](https://appshunter.io/ios/app/dd-toolbox/id599474303/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free | — |
| Size | 13 MB | 6 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DD Audio](https://appshunter.io/developer/599474306) | [Hideyuki Inada](https://appshunter.io/developer/926079378) |

## What reviewers say

### DD Toolbox

[App page](https://appshunter.io/ios/app/dd-toolbox/id599474303)

This app provides essential tools for car audio installers to set up and analyze high-performance systems. It offers a power calculator, tone generator, and DD box calculator, designed for quick and convenient use during installations.

**Highlights:** Power Calculator, Tone Generator, DD Box Calculator, Dynamic configuration data download, Multi-language support

**Features:** macOS Compatibility

**In-app purchases:** none


### Diffeq Solver

[App page](https://appshunter.io/ios/app/diffeq-solver/id6745722062)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DD Toolbox free?

DD Toolbox is free to download, with no in-app purchases.

### Is Diffeq Solver free?

Diffeq Solver is free to download, with no in-app purchases.

### Do DD Toolbox or Diffeq Solver have ads?

Neither DD Toolbox nor Diffeq Solver shows ads.

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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.*