SKRWT vs QuadCropper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SKRWT
This app offers powerful perspective and lens correction tools to enhance smartphone photos. It helps fix converging lines and lens distortions, making your images look professional and symmetrical. Additional extensions allow for manual corner adjustments and creative mirroring effects.
- Perspective correction
- Lens distortion correction
- Horizontal and vertical line correction
- Auto-cropping functionality
- Manual 4-point perspective adjustment
- Mirror effects
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„Best Apps 2014“ - The App Store „10 Best Photography Apps“ - The Guardian UK „Make Your iPhone Photos Look Professional With SKRWT“ - AppAdvice „SKRWT is the Missing Link to iPhone Photo Perfection“ - Paste Magazine „10 iPhone Apps That Will Do Wonders For your Photography“ - Business Insider „7 Must-Have Apps for Drone Pilots“ - fromwhereidrone.com „5 Can’t-Miss iPhone Apps…“ - Time.com - SKRWT (App Store's "Best Apps 2014") is the most powerful perspective- and lens correction tool out there. Crafted to help you enhance your best smartphone photos in just a few taps, v.1.5 of SKRWT is now better than ever. With a variety of unrivaled features and awe-inspiring in-app extensions MRRW and 4PNTS, this fine application is the go-to editing tool for sophisticated photography enthusiasts like yourself. All hail symmetry! #SKRWT #MRRW #4PNTS - SKRWT Kiss converging lines goodbye: SKRWT is the all-purpose perspective and lens correction app for symmetry lovers. Correct horizontal and vertical lines as well lens distortions for shots taken with adapters, DLSRs, with a GoPro or a drone camera. With the one-of-a-kind full auto-cropping functionality and the self-explanatory, intuitive user interface, SKRWT is the missing link in high-end smartphone photography. If you are a sucker for quality and symmetry, SKRWT is for you. - 4PNTS With 4PNTS, the good folks at SRKWT re-thought perspective correction workflows and put together a new must-have extension. A hands-on approach to professional photo transformation: 4PNTS lets you manually work one or more corner points of your image, turning perspective correction into a fully intuitive manipulation process. The 4-point-perspective-tool is available as an in-app purchase – so you get to artistically transform, skew and enhance your photos within SKRWT. Your individual take, your creativity, your shot. - MRRW SKRWT presents four high precision mirror effects in this unmatched mirroring tool for your smartphone. With a refreshing approach to creative image manipulation, MRRW helps uncover the hidden symmetry in your best shots and enables you to find new creative and artistic freedom. Explore new possibilities in composition and use perspective correction and auto cropping in SKRWT-quality. Here goes for a never-ending stream of MRRWGRAMS! - instagram.com/doyouskrwt facebook.com/skrwtapp twitter.com/doyouskrwt hello@skrwt.com - #SKRWT #DOYOUSKRWT #ALLHAILSYMMETRY
QuadCropper
Effortlessly crop and straighten skewed rectangular objects in photos. This tool allows precise corner placement to correct perspective distortion, ideal for digitizing documents or images taken at an angle.
- Crop skewed rectangles
- Deskew perspective distortion
- Adjustable corner placement
- Access Photos library
- Use camera
- Crop from files
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This app contains a Photos extension to crop and deskew rectangles in a photo. Since the rectangles may be skewed by perspective, the cropping tool allows individual placement of the four corners of the 2D quadrilateral -- and then deskews the contained rectangle. This is useful for business cards or slides or book covers or the like which have been photographed at an angle. The app mimics the functionality of the Photos extension and can access the Photos library or the camera to get an image. One can also crop the image from any file. Unless the image is retrieved from the Photos library, the app will store the cropped image to a user-selected file. Corners can be nudged by tapping on the corner circles. The corner will move by a pixel in the direction of the quadrant of the circle that was tapped on.
Screenshots
Verdict
The clearest difference is price: QuadCropper at Free against SKRWT's $1.99. QuadCropper also leads on in-app purchases (none vs 2). SKRWT's advantage is rating (4.4 vs 3.7) and ratings volume (592 vs 3). On review sentiment, ads 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
QuadCropper is free to download; SKRWT costs $1.99 up front. SKRWT sells 2 one-off in-app purchases. QuadCropper asks for nothing beyond the download.
SKRWT holds the better App Store score, 4.4 against 3.7. That said, the two scores are not equally well evidenced: SKRWT has 592 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 56% of SKRWT's written reviews are positive against 60% of QuadCropper's, so the app with the better star average is not the one people write more warmly about.
| Parameter | SKRWT | QuadCropper |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.4 (592 ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 55.6% of reviews | 60.0% of reviews — better |
| Number of ratings | 592 — better | 3 |
| Update frequency | Every 4 months | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #151 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 9.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 42 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Mathaeus Jagielski | Robert Lefkowitz |
Customer experience
SKRWT
QuadCropper
Bugs and requests
SKRWT
Reported bugs
3 issues- Inability to save edited photos
- Glitches when using negative lens distortion values
- Crashes on launch or when importing images
Requested features
5 requests- Lens distortion correction presets
- Ability to edit individual image corners
- Integration with Photos app and other editing tools
- Support for RAW and high-quality image formats
- Landscape mode support for iPad
QuadCropper
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SKRWT
- MRRW - Export Feature$0.99
- 4PNTS - Export Feature$0.99
QuadCropper
No in-app purchases









