Calibration Plus vs Graflex Light Meter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calibration Plus
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.
- Fine tone control for digital negatives
- Correction curve design
- Reference chart generation
- Alternate process printing aid
- Improved print quality
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Calibration+ helps you for alternate process printing, by allowing fine tone control on your digital negatives. For instance, the cyanotype process is contrasted with poor half tones. Calibration+ helps you to have better prints with dark, white and halftones by designing a correction curve. With Calibration+, generate a reference chart on your device. Use your favorite image processing software :Adobe Photoshop™, Gimp, Affinity Photo™, Lightroom™… to generate digital negative. Invert. Flip. Print (as usual). Photograph the print! Calibration+ computes the adjustment curve in your photo software to have perfect prints.
Graflex Light Meter
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.
- Curtain aperture settings
- Shutter tension settings
- Instant light readings
- Designed for Graflex cameras
- Eliminates physical chart use
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This light meter is designed specifically for Graflex cameras with built-in curtain shutters. It instantly gives you the correct curtain aperture and shutter tension settings based on your light readings. No more squinting at the dim bronze chart on your Graflex—just take the values directly from the app and start shooting.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Calibration Plus | Graflex Light Meter |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.0 (2 ratings) | 4.5 (2 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Every 21 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 14 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Le bord de la piscine | Ari Jaaksi |
Customer experience
Calibration Plus
Graflex Light Meter
In-app purchases
Calibration Plus
No in-app purchases
Graflex Light Meter
No in-app purchases
Questions
Is Calibration Plus free?
Is Graflex Light Meter free?
Which has better reviews, Calibration Plus or Graflex Light Meter?
Do Calibration Plus or Graflex Light Meter have ads?
Which is updated more often, Calibration Plus or Graflex Light Meter?
Other comparisons
