# RORO eSIM vs DJ引擎

RORO eSIM and DJ引擎 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RORO eSIM ships an update every 2 months, DJ引擎 every 5 weeks. The most recent releases landed on October 6, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | RORO eSIM | DJ引擎 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 76 MB | 88 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [DDUP Business Service AB](https://appshunter.io/developer/1764934211) | [广西后宫网络科技有限公司](https://appshunter.io/developer/1535749827) |

## What reviewers say

### RORO eSIM

[App page](https://appshunter.io/ios/app/roro-esim/id6667116791)

**Features:** macOS Compatibility

**In-app purchases:** none


### DJ引擎

[App page](https://appshunter.io/ios/app/dj/id6743144824)

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

**In-app purchases:** none


## Frequently asked questions

### Is RORO eSIM free?

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

### Is DJ引擎 free?

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

### Do RORO eSIM or DJ引擎 have ads?

Neither RORO eSIM nor DJ引擎 shows ads.

### Which is updated more often, RORO eSIM or DJ引擎?

RORO eSIM ships an update every 2 months, and DJ引擎 every 5 weeks. Most recently, RORO eSIM was updated on October 6, 2026 and DJ引擎 on October 18, 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.*