Apps by Masanori Katsuta
Adjust Perspective app icon

Photo & Video

Adjust Perspective

Masanori Katsuta

$0.99 1.00 · 1 storefront · 2 ratings No in-app purchases
Open on Apple

About this app

This is a camera app that corrects distortion and perspective of photos. Whole photo, Documents, posters, arts such as paintings and calligraphy, exhibits, screens, blackboards, whiteboards, signs, screens, timetables, etc. You may want to leave a photo as a memo by taking photos with your smartphone camera or tablet camera. The problem is that the image of the picture is distorted by the influence of the camera lens. Even if the subject is at a right angle, it will not be a right angle photo. If the subject is rectangular, it will be a quadrangle with perspective. You can convert such perspective distorted quadrangle to the original subject rectangle. Cut out a free-form quadrangle from the photo and convert it to a rectangle. The cropping quadrangle does not have to be a right angle, and it is OK to use a trapezoid, a rhombus, a parallelogram, or a freeform quadrangle. If you can not shoot the subject directly in front of you, the photos will have perspective. To be precise, even if taken straight ahead, some distortion is inevitable. However, with this app, even photos taken from an oblique direction can be converted to rectangular images viewed from the front. You can edit the position of the corner mark for clipping while checking the clipping image on the preview screen in real time. Material picture - Photographing (camera) - Selection of photo (camera roll) Save cropped image - Save image (Camera roll) - Image sharing (Twitter, Facebook, LINE, Dropbox etc.) Cropped image settings - 4 corner marks for clipping (movement by drag operation) - The amount of movement of the corner mark - aspect ratio - Horizontal perspective correction - Vertical perspective correction - Resolution of saved image

Latest release

What’s New

Version 1.0.3 Nov 1, 2022

- The drawing process has been sped up. - Compatible with safe areas. - Fixed mark movement processing.

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
2 ratings
2 Aug 11, 2026 · 2 ratings Aug 11, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current $0.99
Historical low USD 0.99
Paid → free
Price history
Current $0.99
$0.99 $0.50 Free Aug 11, 2026 · $0.99 Aug 11, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Aug 11, 2026 · 1:50 PM $0.99

Screenshots

Adjust Perspective iPhone screenshotAdjust Perspective iPhone screenshotAdjust Perspective iPhone screenshotAdjust Perspective iPhone screenshotAdjust Perspective iPhone screenshot Adjust Perspective iPad screenshotAdjust Perspective iPad screenshotAdjust Perspective iPad screenshotAdjust Perspective iPad screenshot