# BrightEMS vs Goodzilla Keys

The clearest difference is update cadence: BrightEMS at every 3 weeks against Goodzilla Keys's every 7 months. Goodzilla Keys's advantage is iOS requirement (12.0 vs 15.0). 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.

BrightEMS ships an update every 3 weeks, Goodzilla Keys every 7 months. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | BrightEMS | Goodzilla Keys |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (14 ratings)](https://appshunter.io/ios/app/brightems/id6450639649/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 29.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 7 months |
| Monetization | Free | — |
| Size | 40 MB | 125 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Abisda Network Technology Co., Ltd.](https://appshunter.io/developer/1750660585) | [GOODZILLA LLC](https://appshunter.io/developer/1567416422) |

## What reviewers say

### BrightEMS

[App page](https://appshunter.io/ios/app/brightems/id6450639649)

Manage your energy storage power supply with comprehensive control over switches, charging, and power parameters. Optimize energy usage, schedule charging, and keep your device updated with the latest firmware.

**Highlights:** USB/AC/DC/LED switch control, Energy parameter monitoring, Silent and scheduled charging, Customizable DC charging, Screen and standby time settings, Firmware version upgrades

**Features:** macOS Compatibility

**In-app purchases:** none


### Goodzilla Keys

[App page](https://appshunter.io/ios/app/goodzilla-keys/id6746046914)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BrightEMS free?

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

### Is Goodzilla Keys free?

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

### Do BrightEMS or Goodzilla Keys have ads?

Neither BrightEMS nor Goodzilla Keys shows ads.

### Which is updated more often, BrightEMS or Goodzilla Keys?

BrightEMS ships an update every 3 weeks, and Goodzilla Keys every 7 months. Most recently, BrightEMS was updated on October 13, 2026 and Goodzilla Keys on September 29, 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.*