# Flicker Meter for Light vs DUST Queue

The clearest difference is in-app purchases: DUST Queue at none against Flicker Meter for Light's 4. DUST Queue also leads on update cadence (weekly vs every 2 months) and iOS requirement (13.4 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Flicker Meter for Light sells 3 in-app purchases, starting at $0.99 per month. DUST Queue asks for nothing beyond the download.

Flicker Meter for Light ships an update every 2 months, DUST Queue weekly. The most recent releases landed on September 21, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Flicker Meter for Light | DUST Queue |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (47 ratings)](https://appshunter.io/ios/app/flicker-meter-for-light-pwm/id1672848632/reviews)** | — |
| Number of ratings | **47** | — |
| Positive reviews | 59.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 43 MB | 36 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Contechity AB](https://appshunter.io/developer/1649290454) | [DUST Identity](https://appshunter.io/developer/1633687398) |

## What reviewers say

### Flicker Meter for Light

[App page](https://appshunter.io/ios/app/flicker-meter-for-light-pwm/id1672848632)

Detect and measure invisible high-frequency flickering in LED lights and screens that can cause eye strain and headaches. Find flicker-free alternatives to improve your comfort and health.

**Highlights:** Detect invisible high-frequency flickering, Measure flicker intensity (%), Measure flicker frequency (Hz), Identify flicker-free light sources, Easy-to-use interface, Instant results

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full access | $0.99 | per month |
| Full access | $4.99 | per year |
| Full access | $6.99 | one-time |


### DUST Queue

[App page](https://appshunter.io/ios/app/dust-queue/id6473635537)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flicker Meter for Light free?

Flicker Meter for Light is free to download, with in-app purchases available.

### Is DUST Queue free?

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

### Do Flicker Meter for Light or DUST Queue have ads?

Neither Flicker Meter for Light nor DUST Queue shows ads.

### Which is updated more often, Flicker Meter for Light or DUST Queue?

Flicker Meter for Light ships an update every 2 months, and DUST Queue weekly. Most recently, Flicker Meter for Light was updated on September 21, 2026 and DUST Queue on June 4, 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.*