Calibration Plus vs Simple Passe
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.
Simple Passe
Easily add custom borders to your photos. Select border color and width, then apply to any image. The app saves a new image with borders, perfect for enhancing your social media galleries with an elegant look.
- Add custom borders
- Select border color
- Adjust border width
- Save bordered images
- Enhance social media photos
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Simple Passe allows you to effortlessly add beautiful borders to your images. Simply select the border color and width, choose an image, and a new image with borders will be saved to your Photos. With the default settings, this application creates images that enhance your Instagram gallery with an elegant sense of air and space.
Screenshots
Verdict
The clearest difference is price: Simple Passe at Free against Calibration Plus's $2.99. Simple Passe also leads on rating (5.0 vs 3.0). Calibration Plus's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 18.0). On ratings volume, update cadence, ads and in-app purchases 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
Simple Passe is free to download; Calibration Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Simple Passe holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
Calibration Plus ships an update every 21 months, Simple Passe every 12 months. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.
| Parameter | Calibration Plus | Simple Passe |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.0 (2 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Every 21 months | Every 12 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 14 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Le bord de la piscine | Ari Jaaksi |
Customer experience
Calibration Plus
Simple Passe
In-app purchases
Calibration Plus
No in-app purchases
Simple Passe
No in-app purchases
Questions
Is Calibration Plus free?
Is Simple Passe free?
Which has better reviews, Calibration Plus or Simple Passe?
Do Calibration Plus or Simple Passe have ads?
Which is updated more often, Calibration Plus or Simple Passe?
Other comparisons
