# Calibration Plus vs Graflex Light Meter

The clearest difference is price: Graflex Light Meter at Free against Calibration Plus's $2.99. Graflex Light Meter also leads on rating (4.5 vs 3.0) and update cadence (every 4 days vs every 21 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Graflex Light Meter is free to download; Calibration Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Graflex Light Meter holds the better App Store score, 4.5 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Calibration Plus ships an update every 21 months, Graflex Light Meter every 4 days. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Calibration Plus | Graflex Light Meter |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/calibration-plus/id1414916538/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/graflex-light-meter/id6752913807/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 4 days** |
| Monetization | Paid | **Free** |
| Size | 14 MB | 3 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Le bord de la piscine](https://appshunter.io/developer/456593417) | [Ari Jaaksi](https://appshunter.io/developer/1770069317) |

## What reviewers say

### Calibration Plus

[App page](https://appshunter.io/ios/app/calibration-plus/id1414916538)

This app aids in creating digital negatives for alternate process printing, offering fine tone control. It helps achieve better prints with improved dark, white, and halftone tones by designing correction curves. Generate reference charts and use image processing software to refine your digital negatives for perfect prints.

**Highlights:** Fine tone control for digital negatives, Correction curve design, Reference chart generation, Alternate process printing aid, Improved print quality

**Features:** Vision Pro support

**In-app purchases:** none


### Graflex Light Meter

[App page](https://appshunter.io/ios/app/graflex-light-meter/id6752913807)

This app provides precise curtain aperture and shutter tension settings for Graflex cameras with built-in curtain shutters. It eliminates the need to consult physical charts, offering instant, accurate readings for your photography.

**Highlights:** Curtain aperture settings, Shutter tension settings, Instant light readings, Designed for Graflex cameras, Eliminates physical chart use

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calibration Plus free?

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

### Is Graflex Light Meter free?

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

### Which has better reviews, Calibration Plus or Graflex Light Meter?

Graflex Light Meter is rated higher. Calibration Plus averages 3.0 out of 5 from 2 ratings, while Graflex Light Meter averages 4.5 from 2 ratings.

### Do Calibration Plus or Graflex Light Meter have ads?

Neither Calibration Plus nor Graflex Light Meter shows ads.

### Which is updated more often, Calibration Plus or Graflex Light Meter?

Calibration Plus ships an update every 21 months, and Graflex Light Meter every 4 days. Most recently, Calibration Plus was updated on October 14, 2026 and Graflex Light Meter on October 15, 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.*