# MELPEC配線SYS vs 4 Quadrant Rule

The clearest difference is price: MELPEC配線SYS at Free against 4 Quadrant Rule's $1.99. 4 Quadrant Rule's advantage is iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

MELPEC配線SYS is free to download; 4 Quadrant Rule costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | MELPEC配線SYS | 4 Quadrant Rule |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Size | 2 MB | 24 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mitsubishi Electric Corporation](https://appshunter.io/developer/394875124) | [Xiamen City Fanyou Network Technology Co., Ltd.](https://appshunter.io/developer/1842524161) |

## What reviewers say

### MELPEC配線SYS

[App page](https://appshunter.io/ios/app/melpecsys/id1537356202)

**In-app purchases:** none


### 4 Quadrant Rule

[App page](https://appshunter.io/ios/app/4-quadrant-rule-task-planner/id6786556931)

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

**In-app purchases:** none


## Frequently asked questions

### Is MELPEC配線SYS free?

MELPEC配線SYS is free to download, with no in-app purchases.

### Is 4 Quadrant Rule free?

4 Quadrant Rule costs $1.99, with no in-app purchases.

### Do MELPEC配線SYS or 4 Quadrant Rule have ads?

Neither MELPEC配線SYS nor 4 Quadrant Rule 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.*