# LIGHTmetric ONE App vs EV Master

The clearest difference is update cadence: EV Master at every 5 weeks against LIGHTmetric ONE App's every 5 months. 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.

LIGHTmetric ONE App ships an update every 5 months, EV Master every 5 weeks. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | LIGHTmetric ONE App | EV Master |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Size | 5 MB | 66 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Gigahertz Optik GmbH](https://appshunter.io/developer/1745074329) | [TopTekk Technology Co.,Ltd.](https://appshunter.io/developer/1756241206) |

## What reviewers say

### LIGHTmetric ONE App

[App page](https://appshunter.io/ios/app/lightmetric-one-app/id6502341060)

**Features:** macOS Compatibility

**In-app purchases:** none


### EV Master

[App page](https://appshunter.io/ios/app/ev-master/id6758076529)

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

**In-app purchases:** none


## Frequently asked questions

### Is LIGHTmetric ONE App free?

LIGHTmetric ONE App is free to download, with no in-app purchases.

### Is EV Master free?

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

### Do LIGHTmetric ONE App or EV Master have ads?

Neither LIGHTmetric ONE App nor EV Master shows ads.

### Which is updated more often, LIGHTmetric ONE App or EV Master?

LIGHTmetric ONE App ships an update every 5 months, and EV Master every 5 weeks. Most recently, LIGHTmetric ONE App was updated on October 19, 2026 and EV Master on October 16, 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.*