# ScratchQ vs Diffeq Solver

The clearest difference is price: Diffeq Solver at Free against ScratchQ's $7.99. ScratchQ's advantage is iOS requirement (15.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

Diffeq Solver is free to download; ScratchQ costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ScratchQ | Diffeq Solver |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/scratchq/id1162249686/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | — |
| Monetization | Paid | — |
| Size | 1 MB | 6 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Autoolmaq LLC](https://appshunter.io/developer/1127949465) | [Hideyuki Inada](https://appshunter.io/developer/926079378) |

## What reviewers say

### ScratchQ

[App page](https://appshunter.io/ios/app/scratchq/id1162249686)

This app serves as a digital scratchpad for everyday calculations, allowing users to save annotated versions for future reference. It features a color-coded system for organizing calculations and a custom keyboard for easy editing and access to operators.

**Highlights:** Save annotated calculations, Color-coded file system, Custom keyboard for editing, Easy access to arithmetic operators, Organize everyday math problems

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

**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 ScratchQ free?

ScratchQ costs $7.99, with no in-app purchases.

### Is Diffeq Solver free?

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

### Do ScratchQ or Diffeq Solver have ads?

Neither ScratchQ nor Diffeq Solver shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*