# E vs 4Quadrants

The clearest difference is update cadence: 4Quadrants at every 6 days against E's every 6 weeks. E's advantage is iOS requirement (18.4 vs 26.0). 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.

E ships an update every 6 weeks, 4Quadrants every 6 days. The most recent releases landed on September 9, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | E | 4Quadrants |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 6 days** |
| Size | 14 MB | 6 MB |
| Requires iOS | **18.4** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vladislav Aliev](https://appshunter.io/developer/1871109100) | [颢宸 唐](https://appshunter.io/developer/1875716414) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-matrix-focus/id6758135959)

**Features:** macOS Compatibility

**In-app purchases:** none


### 4Quadrants

[App page](https://appshunter.io/ios/app/4quadrants/id6758995394)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is 4Quadrants free?

4Quadrants is free to download, with no in-app purchases.

### Do E or 4Quadrants have ads?

Neither E nor 4Quadrants shows ads.

### Which is updated more often, E or 4Quadrants?

E ships an update every 6 weeks, and 4Quadrants every 6 days. Most recently, E was updated on September 9, 2026 and 4Quadrants on September 17, 2026.

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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.*