# BrightEMS vs VTOMAN

The clearest difference is review sentiment: BrightEMS at 31% against VTOMAN's 0%. BrightEMS also leads on update cadence (every 3 weeks vs every 2 months). VTOMAN's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and monetization model 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, VTOMAN every 2 months. The most recent releases landed on September 22, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | BrightEMS | VTOMAN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (14 ratings)](https://appshunter.io/ios/app/brightems/id6450639649/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | **30.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 40 MB | 35 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Abisda Network Technology Co., Ltd.](https://appshunter.io/developer/1750660585) | [Shenzhen Carku Technology Co., Ltd.](https://appshunter.io/developer/1584274042) |

## 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


### VTOMAN

[App page](https://appshunter.io/ios/app/vtoman/id6741952045)

Monitor the real-time operating status of emergency power equipment. View detailed information like temperature, power, and voltage to understand usage and plan charging effectively. Connect via Bluetooth or QR code for quick access to device data.

**Highlights:** Real-time operating status monitoring, View temperature, power, and voltage, Bluetooth device connection, QR code device scanning, Understand equipment usage, Arrange charging reasonably

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BrightEMS free?

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

### Is VTOMAN free?

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

### Do BrightEMS or VTOMAN have ads?

Neither BrightEMS nor VTOMAN shows ads.

### Which is updated more often, BrightEMS or VTOMAN?

BrightEMS ships an update every 3 weeks, and VTOMAN every 2 months. Most recently, BrightEMS was updated on September 22, 2026 and VTOMAN on September 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.*