# Illuminance Pulsation Meter vs Graph Calc Plus

The clearest difference is update cadence: Illuminance Pulsation Meter at every 7 months against Graph Calc Plus's every 39 months. Graph Calc Plus's advantage is price ($2.99 vs $3.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Illuminance Pulsation Meter costs $3.99 and Graph Calc Plus $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Illuminance Pulsation Meter ships an update every 7 months, Graph Calc Plus every 39 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Illuminance Pulsation Meter | Graph Calc Plus |
| --- | --- | --- |
| Price | $3.99 | **$2.99** |
| 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** | Every 39 months |
| Monetization | Paid | — |
| Size | 5 MB | 1 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ALEXEY KOZLOV](https://appshunter.io/developer/1393860478) | [Heng Jia Liang](https://appshunter.io/developer/1532000635) |

## 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


### Graph Calc Plus

[App page](https://appshunter.io/ios/app/graph-calc-plus/id1612916130)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Illuminance Pulsation Meter free?

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

### Is Graph Calc Plus free?

Graph Calc Plus costs $2.99, with no in-app purchases.

### Do Illuminance Pulsation Meter or Graph Calc Plus have ads?

Neither Illuminance Pulsation Meter nor Graph Calc Plus shows ads.

### Which is updated more often, Illuminance Pulsation Meter or Graph Calc Plus?

Illuminance Pulsation Meter ships an update every 7 months, and Graph Calc Plus every 39 months. Most recently, Illuminance Pulsation Meter was updated on October 24, 2026 and Graph Calc Plus on October 27, 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.*