# GLP iQ.Service vs LIT Light Meter

The clearest difference is rating: GLP iQ.Service at 5.0 against LIT Light Meter's 4.6. LIT Light Meter's advantage is update cadence (every 2 weeks vs monthly) and ratings volume (5 vs 1). 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.

GLP iQ.Service holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: LIT Light Meter has 5 ratings behind it against 1, so its average is the more settled of the two.

GLP iQ.Service ships an update monthly, LIT Light Meter every 2 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | GLP iQ.Service | LIT Light Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/glp-iqservice/id1609207414/reviews)** | [4.6 (5 ratings)](https://appshunter.io/ios/app/lit-light-meter/id6747716897/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 275 MB | 78 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [German Light Products](https://appshunter.io/developer/1438650624) | [Lit Systems AB](https://appshunter.io/developer/1822574754) |

## What reviewers say

### GLP iQ.Service

[App page](https://appshunter.io/ios/app/glp-iqservice/id1609207414)

This utility app allows users to manage, update, and analyze fixtures remotely. It connects via Bluetooth and NFC for seamless interaction with GLP products.

**Highlights:** Fixture maintenance, Software updates, Data analysis, Bluetooth connectivity, NFC integration

**Features:** macOS Compatibility

**In-app purchases:** none


### LIT Light Meter

[App page](https://appshunter.io/ios/app/lit-light-meter/id6747716897)

This companion app allows users to remotely control and save data from the LIT DUO 1 light meter. It enables firmware updates via Bluetooth, enhancing the functionality of the connected device.

**Highlights:** Remote control for LIT DUO 1, Firmware updates via Bluetooth, Data saving capabilities, Companion app functionality

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is GLP iQ.Service free?

GLP iQ.Service is free to download, with no in-app purchases.

### Is LIT Light Meter free?

LIT Light Meter is free to download, with no in-app purchases.

### Which has better reviews, GLP iQ.Service or LIT Light Meter?

GLP iQ.Service is rated higher. GLP iQ.Service averages 5.0 out of 5 from 1 ratings, while LIT Light Meter averages 4.6 from 5 ratings.

### Do GLP iQ.Service or LIT Light Meter have ads?

Neither GLP iQ.Service nor LIT Light Meter shows ads.

### Which is updated more often, GLP iQ.Service or LIT Light Meter?

GLP iQ.Service ships an update monthly, and LIT Light Meter every 2 weeks. Most recently, GLP iQ.Service was updated on November 3, 2026 and LIT Light Meter on October 30, 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.*