# 充美好EVIVA vs STEMS EV

The clearest difference is update cadence: STEMS EV at every 5 days against 充美好EVIVA's every 6 weeks. 充美好EVIVA's advantage is iOS requirement (14.0 vs 16). 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.

充美好EVIVA ships an update every 6 weeks, STEMS EV every 5 days. The most recent releases landed on June 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 充美好EVIVA | STEMS EV |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 79 MB | 16 MB |
| Requires iOS | **14.0** | 16 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LHC New Energy Company Limited](https://appshunter.io/developer/1567326674) | [台科電科技股份有限公司](https://appshunter.io/developer/1826972531) |

## What reviewers say

### 充美好EVIVA

[App page](https://appshunter.io/ios/app/eviva/id6736793384)

Find and use ultra-fast electric vehicle charging stations across Hong Kong. Monitor your charging sessions in real-time, view history, and make payments easily with multiple options. The app features a live map to locate available chargers and offers exclusive benefits for members.

**Highlights:** 500kW ultra-fast charging, Real-time charging session monitoring, Detailed charging history and receipts, Multiple payment options, Live charging station availability map, One-tap navigation to stations, Member-exclusive pricing

**In-app purchases:** none


### STEMS EV

[App page](https://appshunter.io/ios/app/stems-ev/id6753740708)

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

**In-app purchases:** none


## Frequently asked questions

### Is 充美好EVIVA free?

充美好EVIVA is free to download, with no in-app purchases.

### Is STEMS EV free?

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

### Do 充美好EVIVA or STEMS EV have ads?

Neither 充美好EVIVA nor STEMS EV shows ads.

### Which is updated more often, 充美好EVIVA or STEMS EV?

充美好EVIVA ships an update every 6 weeks, and STEMS EV every 5 days. Most recently, 充美好EVIVA was updated on June 8, 2026 and STEMS EV on October 6, 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.*