# Flicker Light vs Flicker Fusion

The clearest difference is update cadence: Flicker Fusion at every 4 months against Flicker Light's every 19 months. Flicker Light's advantage is iOS requirement (9.0 vs 15.0). 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.

Flicker Light ships an update every 19 months, Flicker Fusion every 4 months. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Flicker Light | Flicker Fusion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/flicker-light/id1186160850/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 25 MB | 18 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryohei Minowa](https://appshunter.io/developer/1079280080) | [Lafayette Instrument Company, Inc.](https://appshunter.io/developer/335029582) |

## What reviewers say

### Flicker Light

[App page](https://appshunter.io/ios/app/flicker-light/id1186160850)

This app simulates natural light patterns on your screen, mimicking the calming effect of 1/f fluctuations found in nature. It can be used as a gentle light source, with customizable settings and an automatic shut-off timer to conserve battery. The app also allows you to adjust the light's intensity and color.

**Highlights:** Reproduces natural flame sparkle (1/f fluctuation), Maximizes screen brightness, Adjustable fluctuation strength and speed, Hides buttons for a clean display, Automatic turn-off timer, Selectable light colors

**Features:** macOS Compatibility

**In-app purchases:** none


### Flicker Fusion

[App page](https://appshunter.io/ios/app/flicker-fusion/id1471020622)

**In-app purchases:** none


## Frequently asked questions

### Is Flicker Light free?

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

### Is Flicker Fusion free?

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

### Do Flicker Light or Flicker Fusion have ads?

Neither Flicker Light nor Flicker Fusion shows ads.

### Which is updated more often, Flicker Light or Flicker Fusion?

Flicker Light ships an update every 19 months, and Flicker Fusion every 4 months. Most recently, Flicker Light was updated on October 6, 2026 and Flicker Fusion on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*