# E vs 次元空間 DIMENSION SPACE

The clearest difference is in-app purchases: E at none against 次元空間 DIMENSION SPACE's 2. E also leads on iOS requirement (7.1 vs 17.0). 次元空間 DIMENSION SPACE's advantage is update cadence (every 5 days vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. 次元空間 DIMENSION SPACE sells 2 in-app purchases, starting at $11.99 per month. E asks for nothing beyond the download.

E ships an update every 6 months, 次元空間 DIMENSION SPACE every 5 days. The most recent releases landed on October 7, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | E | 次元空間 DIMENSION SPACE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 days** |
| Size | 22 MB | 96 MB |
| Requires iOS | **7.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 9+ |
| Developer | [SI-TECH Information Technology Ltd.](https://appshunter.io/developer/448117246) | [FLYER GROUP LIMITED](https://appshunter.io/developer/6772718644) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-learning/id633261614)

**Features:** macOS Compatibility

**In-app purchases:** none


### 次元空間 DIMENSION SPACE

[App page](https://appshunter.io/ios/app/dimension-space/id6772718642)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $11.99 | per month |
| Pro Annual | $99.99 | per year |


## Frequently asked questions

### Is E free?

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

### Is 次元空間 DIMENSION SPACE free?

次元空間 DIMENSION SPACE is free to download, with in-app purchases available.

### Do E or 次元空間 DIMENSION SPACE have ads?

Neither E nor 次元空間 DIMENSION SPACE shows ads.

### Which is updated more often, E or 次元空間 DIMENSION SPACE?

E ships an update every 6 months, and 次元空間 DIMENSION SPACE every 5 days. Most recently, E was updated on October 7, 2026 and 次元空間 DIMENSION SPACE on September 28, 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.*