DD Toolbox vs Diffeq Solver
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DD Toolbox
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.
- Power Calculator
- Tone Generator
- DD Box Calculator
- Dynamic configuration data download
- Multi-language support
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The DD Toolbox includes useful tools for setting up and analyzing high performance car audio systems. We understand installers have a lot going on while setting up a system, so the DD Toolbox layout was designed with this in mind. Easily switch between tools allowing fast and convenient use of the multiple tools. This allows you to do things like use the tone generator while punching numbers into the wattage calculator. DD Toolbox features: -Power Calculator for determining your systems actual output wattage and impedance -Tone Generator -DD Box Calculator Connectivity Note: DD Toolbox requires connectivity in order to download dynamic configuration data (allows us to add new speakers/specs to the calculator for example, without having to create a new build). If you attempt to run it without connectivity you may receive an error. Language Note: This version is capable of handling the native language of your device, but we have to provide a language file for it to use. If you're willing to help with translation to your language, please let us know, we'd love to make more languages generally available.
Diffeq Solver
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Need a quick solution to an ODE on the go? Diffeq Solver is your portable companion for tackling differential equations anytime, anywhere. Features: • Numerically solves first-order ODEs • Numerically solves second-order ODEs • Uses the Runge-Kutta 4th-order (RK4) method with a fixed step size • Clean, intuitive interface—no thick manuals required Disclaimer: While every effort has been made to ensure the accuracy of the results, this software is provided as-is. Use at your own risk. By using Diffeq Solver, you agree not to hold the developer responsible for any errors or inaccuracies.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | DD Toolbox | Diffeq Solver |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (12 ratings) — better | — |
| Positive reviews | 62.5% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 13 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | DD Audio | Hideyuki Inada |
In-app purchases
DD Toolbox
No in-app purchases
Diffeq Solver
No in-app purchases
Questions
Is DD Toolbox free?
Is Diffeq Solver free?
Do DD Toolbox or Diffeq Solver have ads?
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