# Luminosys vs ATIS Wind Guage

The clearest difference is ads: ATIS Wind Guage at none against Luminosys's shown. ATIS Wind Guage also leads on update cadence (every 3 days vs every 19 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Luminosys ships an update every 19 months, ATIS Wind Guage every 3 days. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Luminosys | ATIS Wind Guage |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/luminosys-light-meter/id6476405389/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 19 months | **Every 3 days** |
| Monetization | Ad-supported | — |
| Size | 3 MB | 3 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Melissa Zwick](https://appshunter.io/developer/1616726350) | [ATIS Co., LTD.](https://appshunter.io/developer/6808108131) |

## What reviewers say

### Luminosys

[App page](https://appshunter.io/ios/app/luminosys-light-meter/id6476405389)

Accurately measure ambient light levels in Lux or Foot Candles using your phone's camera. This tool is ideal for photography, comparing light sources, or indoor gardening. It's designed for ease of use and provides precise readings.

**Highlights:** Measures light in Lux, Measures light in Foot Candles (FC), Uses phone camera for accuracy, Easy to use interface, Suitable for photography, Useful for indoor gardening

**In-app purchases:** none


### ATIS Wind Guage

[App page](https://appshunter.io/ios/app/atis-wind-guage/id6808108129)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Luminosys free?

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

### Is ATIS Wind Guage free?

ATIS Wind Guage is free to download, with no in-app purchases.

### Do Luminosys or ATIS Wind Guage have ads?

Luminosys shows ads; ATIS Wind Guage does not.

### Which is updated more often, Luminosys or ATIS Wind Guage?

Luminosys ships an update every 19 months, and ATIS Wind Guage every 3 days. Most recently, Luminosys was updated on October 7, 2026 and ATIS Wind Guage 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.*