# E vs 龙佑

The clearest difference is update cadence: 龙佑 at every 6 weeks against E's every 6 months. 龙佑 also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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 months, 龙佑 every 6 weeks. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | E | 龙佑 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (6 ratings)](https://appshunter.io/ios/app/id6744234991/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Size | 53 MB | 14 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [XinGuang Technology Co.,Ltd.](https://appshunter.io/developer/1130851011) | [Garcia Sherwin](https://appshunter.io/developer/1806564812) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-lab-or/id1431245027)

**Features:** macOS Compatibility

**In-app purchases:** none


### 龙佑

[App page](https://appshunter.io/ios/app/id6744234991)

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is 龙佑 free?

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

### Do E or 龙佑 have ads?

Neither E nor 龙佑 shows ads.

### Which is updated more often, E or 龙佑?

E ships an update every 6 months, and 龙佑 every 6 weeks. Most recently, E was updated on November 2, 2026 and 龙佑 on October 30, 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.*