# JOYCHARGE vs UDAN EMS

JOYCHARGE and UDAN EMS 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.

JOYCHARGE ships an update every 3 weeks, UDAN EMS every 5 weeks. The most recent releases landed on September 30, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | JOYCHARGE | UDAN EMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Size | 34 MB | 33 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ningbo JOYSONQUIN Intelligence Technology Co.,Ltd.](https://appshunter.io/developer/1645841026) | [Anhui Udan Technology Co., Ltd.](https://appshunter.io/developer/1593792520) |

## What reviewers say

### JOYCHARGE

[App page](https://appshunter.io/ios/app/joycharge/id1645840783)

**Features:** macOS Compatibility

**In-app purchases:** none


### UDAN EMS

[App page](https://appshunter.io/ios/app/udan-ems/id6467070220)

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

**In-app purchases:** none


## Frequently asked questions

### Is JOYCHARGE free?

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

### Is UDAN EMS free?

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

### Do JOYCHARGE or UDAN EMS have ads?

Neither JOYCHARGE nor UDAN EMS shows ads.

### Which is updated more often, JOYCHARGE or UDAN EMS?

JOYCHARGE ships an update every 3 weeks, and UDAN EMS every 5 weeks. Most recently, JOYCHARGE was updated on September 30, 2026 and UDAN EMS on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*