# Illuminance Pulsation Meter vs EvernightBoard

The clearest difference is price: EvernightBoard at Free against Illuminance Pulsation Meter's $3.99. EvernightBoard also leads on update cadence (fortnightly vs every 7 months) and iOS requirement (13.0 vs 15.6). On ads, in-app purchases and device support there is nothing between them.

EvernightBoard is free to download; Illuminance Pulsation Meter costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Illuminance Pulsation Meter ships an update every 7 months, EvernightBoard fortnightly. The most recent releases landed on September 10, 2026 and June 7, 2026 respectively.

## The numbers

| Metric | Illuminance Pulsation Meter | EvernightBoard |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.2 (32 ratings)](https://appshunter.io/ios/app/illuminance-pulsation-meter/id1456605148/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Fortnightly** |
| Monetization | Paid | — |
| Size | 5 MB | 31 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ALEXEY KOZLOV](https://appshunter.io/developer/1393860478) | [XIAOCHI CHEN](https://appshunter.io/developer/673929657) |

## What reviewers say

### Illuminance Pulsation Meter

[App page](https://appshunter.io/ios/app/illuminance-pulsation-meter/id1456605148)

Measure the ripple coefficient of light sources to identify screens that may cause eye strain or fatigue. Helps in selecting lamps, monitors, and laptops with minimal screen flicker.

**Highlights:** Measure ripple coefficient of light sources, Test LED, LCD, and fluorescent lamps, Monitor screen flicker in real-time, Visual indicator scale from green to red, Guidance for stable phone positioning

**In-app purchases:** none


### EvernightBoard

[App page](https://appshunter.io/ios/app/evernightboard/id6761154116)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Illuminance Pulsation Meter free?

Illuminance Pulsation Meter costs $3.99, with no in-app purchases.

### Is EvernightBoard free?

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

### Do Illuminance Pulsation Meter or EvernightBoard have ads?

Neither Illuminance Pulsation Meter nor EvernightBoard shows ads.

### Which is updated more often, Illuminance Pulsation Meter or EvernightBoard?

Illuminance Pulsation Meter ships an update every 7 months, and EvernightBoard fortnightly. Most recently, Illuminance Pulsation Meter was updated on September 10, 2026 and EvernightBoard on June 7, 2026.

---

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