# Calibration Plus vs Pic Warp

The clearest difference is rating: Calibration Plus at 3.0 against Pic Warp's 1.9. Pic Warp's advantage is update cadence (every 8 months vs every 21 months) and review sentiment (61% vs 50%). On price, ads, in-app purchases and monetization model there is nothing between them.

Calibration Plus costs $2.99 and Pic Warp $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calibration Plus holds the better App Store score, 3.0 against 1.9. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews complicate that: 50% of Calibration Plus's written reviews are positive against 61% of Pic Warp's, so the app with the better star average is not the one people write more warmly about.

Calibration Plus ships an update every 21 months, Pic Warp every 8 months. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Calibration Plus | Pic Warp |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/calibration-plus/id1414916538/reviews)** | [1.9 (8 ratings)](https://appshunter.io/ios/app/pic-warp-geometry-editor/id1452122489/reviews) |
| Number of ratings | 2 | **8** |
| Positive reviews | 50.0% of reviews | **61.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 8 months** |
| Monetization | Paid | Paid |
| Size | 14 MB | 4 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Le bord de la piscine](https://appshunter.io/developer/456593417) | [Dongwook Cho](https://appshunter.io/developer/1615253426) |

## 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


### Pic Warp

[App page](https://appshunter.io/ios/app/pic-warp-geometry-editor/id1452122489)

Easily correct perspective distortion in photos. Transform skewed images into perfect rectangles or place new images into existing skewed areas, like billboards or posters. Achieve precise results with intuitive controls.

**Highlights:** Perspective skew and unskew, Convert skewed areas to rectangles, Insert photos into skewed areas, Manual aspect ratio adjustment, Control point selection

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calibration Plus free?

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

### Is Pic Warp free?

Pic Warp costs $2.99, with no in-app purchases.

### Which has better reviews, Calibration Plus or Pic Warp?

Calibration Plus is rated higher. Calibration Plus averages 3.0 out of 5 from 2 ratings, while Pic Warp averages 1.9 from 8 ratings.

### Do Calibration Plus or Pic Warp have ads?

Neither Calibration Plus nor Pic Warp shows ads.

### Which is updated more often, Calibration Plus or Pic Warp?

Calibration Plus ships an update every 21 months, and Pic Warp every 8 months. Most recently, Calibration Plus was updated on October 14, 2026 and Pic Warp on October 24, 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.*