Best Change Aspect Ratio Apps

183+ iOS apps curated and reviewed

4.5 avg rating
16 free apps
Updated July 2026

Finding the right change aspect ratio apps can be overwhelming with so many options. We've analyzed 183+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Change Aspect Ratio Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1aspect:ratioaspect:ratioFree3.3★ (4)NoNoMay 2026
2InstaSize: AI Photo EditorInstaSize: AI Photo EditorFree4.7★ (324K)NoYesJul 2026
3Aspect CropperAspect CropperFree4.5★ (21)YesYesJul 2026
4Image SizeImage SizeFree4.7★ (30K)YesYesJul 2026
5Video Aspect Ratio for SafariVideo Aspect Ratio for SafariFree3.0★ (7)NoNoMay 2026
6Scale To FillScale To FillFree4.8★ (107)YesYesJul 2026
7ResolutionerResolutionerFree4.7★ (751)NoYesJul 2026
8Aspect Ratio X CalcAspect Ratio X CalcFree5.0★ (3)NoNoMay 2026

Top Picks for Change Aspect Ratio

aspect:ratio#1

aspect:ratio by manolo Sanudo

Editor's Choice
🔧 Utilities
3.3(4 ratings)
Free
aspect:ratio screenshot 1
aspect:ratio screenshot 2

Easily calculate any ratio for design projects. Input a base ratio and either width or height to automatically determine the other dimension. Offers dark and light themes for usability in any lighting.

InstaSize: AI Photo Editor#2

InstaSize: AI Photo Editor by Instasize Inc.

Collage Pic, Background Maker
Strong Contender
📷 Photo & Video
4.7😞(324K ratings)
FreeIn-App Purchases
#33in Photo & Video
InstaSize: AI Photo Editor screenshot 1
InstaSize: AI Photo Editor screenshot 2
InstaSize: AI Photo Editor screenshot 3
InstaSize: AI Photo Editor screenshot 4
InstaSize: AI Photo Editor screenshot 5
InstaSize: AI Photo Editor screenshot 6

This comprehensive photo and video editor offers AI-powered tools to enhance images, remove unwanted objects, and create collages. Resize and crop content for any social platform, or use advanced features like background removal and batch editing.

What We Love

  • 🚀 Easy to use
  • 👍 Useful for resizing photos
  • 👍 Good photo editing features
  • 👍 Helpful for Instagram

Room to Improve

  • 🔒 Aggressive subscription model
  • 🔒 Difficult to use without premium subscription
  • 🐛 Frequent crashes and bugs
Aspect Cropper#3

Aspect Cropper by Ryusuke Uchida

Resize the photos by ratio
Worth Considering
🛠️ Developer Tools
4.5(21 ratings)
FreeAdsIn-App Purchases
Aspect Cropper screenshot 1
Aspect Cropper screenshot 2
Aspect Cropper screenshot 3
Aspect Cropper screenshot 4
Aspect Cropper screenshot 5
Aspect Cropper screenshot 6

Easily resize and crop your photos with custom aspect ratios on your iPhone or iPad. Select multiple images for quick batch editing, or add color margins to fill empty spaces. Ideal for social media, printing, and creative projects.

More Change Aspect Ratio apps to explore

4
Image Size
Image Size
Image Size
Resize your photo! Resizer App
Free

Easily resize your photos to any dimension using pixels, millimeters, centimeters, or inches. Preserve aspect ratio with a simple tap and crop images with intuitive multitouch gestures. Save, email, print, or share your resized creations.

Resize images to custom dimensionsSupport for pixels, millimeters, centimeters, and inchesPreserve aspect ratio
📷 Photo & Video
(30K)
free with in-app purchases
5
Video Aspect Ratio for Safari
Video Aspect Ratio for Safari
Video Aspect Ratio for Safari
Fix distorted video in website
Free

This Safari extension corrects distorted videos on websites by allowing you to select a valid aspect ratio. It ensures videos automatically fit the screen and are viewable in both portrait and landscape modes.

Fixes distorted website videosSelectable valid aspect ratiosAuto-fits video to screen
📷 Photo & Video
(7)
free
6
Scale To Fill
Scale To Fill
Scale To Fill
Resize images without cropping
Free

Adjust image dimensions to fit various aspect ratios without cropping or adding borders. This app stretches or compresses images, making it best suited for non-photographic content like backgrounds or drawings.

Resize images without croppingAdd borders to imagesStretch or compress images
📷 Photo & Video
(107)
free with in-app purchases
7
Resolutioner
Resolutioner
Resolutioner
Calculate or scale resolutions
Free

This utility app helps you calculate and scale screen resolutions based on aspect ratios. Save and manage your frequently used resolutions for easy access. Sync your presets across Apple devices.

Calculate resolutions by filling in one sideEdit aspect ratios easilyScale resolutions up or down
🛠️ Developer Tools
(751)
free with in-app purchases
8
Aspect Ratio X Calc
Aspect Ratio X Calc
Aspect Ratio X Calc
A : B = C : X To find X
Free

This utility calculates unknown values in aspect ratios, useful for resizing images and clipping. It simplifies the process of determining proportional dimensions for various visual applications.

Calculate unknown aspect ratio valuesInput numbers for calculationResizing images
🔧 Utilities
(3)
free
9
Aspect:Ratio Calc
Aspect:Ratio Calc
Aspect:Ratio Calc
Aspect Ratio Calculator
Free

Easily calculate aspect ratios for images and videos. Supports input formats like width x height or x:y ratios. A simple tool for content creators and designers.

Calculate aspect ratiosSupports width x height formatSupports x:y ratio format
🔧 Utilities
(0)
free
10
Video Crop - Resize Video
Video Crop - Resize Video
Video Crop - Resize Video
Crop and resize video & movie
Free

Easily crop and resize videos to fit any platform or social media requirement. Choose from popular aspect ratios or customize freely for perfect framing. Export your edited videos in high quality.

Crop videos to multiple aspect ratiosPreset aspect ratios (square, 9:16, 4:5)Custom aspect ratio cropping
📷 Photo & Video
(31K)
free with in-app purchases
11
Video Resizer Subtitles Maker
Video Resizer Subtitles Maker
Video Resizer Subtitles Maker
No-crop square frame size Fit
Free

Easily resize videos to fit any aspect ratio without cropping. Customize backgrounds with colors or blur, add animated text and emojis, and adjust sound. Create square videos for social media platforms like Instagram, Twitter, and Facebook.

Generate square videosMultiple aspect ratios supportCustomizable backgrounds
📷 Photo & Video
(2.4K)
free with in-app purchases
12
Resize it - compress any image
Resize it - compress any image
Resize it - compress any image
Change pics size, aspect ratio
Free

This app helps you free up device storage by compressing and resizing images without significant quality loss. It supports batch processing and various popular formats, making it easy to manage your photo library and share files faster.

Compress and resize imagesBatch processing up to 20 imagesSave disk space without quality loss
📷 Photo & Video
(859)
free
13
DPI - Dots per inch
DPI - Dots per inch
DPI - Dots per inch
Change DPI value of an image
Free

Easily modify the DPI (dots per inch) of your images. Save, share, email, or print your adjusted photos with new DPI values.

Change image DPISave modified imageShare image
📷 Photo & Video
(22)
free with in-app purchases
14
Video Zoom! - Apply Zoom, Crop
Video Zoom! - Apply Zoom, Crop
Video Zoom! - Apply Zoom, Crop
Trim Cut Resize, Video Editor
$1.99

Easily enhance your existing videos by adding zoom effects, cropping, and cutting unwanted sections. Adjust aspect ratios and select output quality for polished results. Save your edits as new clips or overwrite originals.

Zoom/Pan/Crop existing videosCut unwanted partsChange aspect ratio
📷 Photo & Video
(387)
free
15
Aspector Squaready Multi
Aspector Squaready Multi
Aspector Squaready Multi
One tap. Any ratio. Any use.
Free

Easily adjust the aspect ratio of your photos with this powerful editor. Batch edit multiple images, choose from various background styles, and utilize precise layout tools. Perfect for preparing content for social media.

Batch photo editingAdjustable aspect ratiosCustomizable backgrounds
📷 Photo & Video
(0)
free with in-app purchases
16
Desqueeze - Batch Resizer
Desqueeze - Batch Resizer
Desqueeze - Batch Resizer
Resize Photos & Videos | HDR
Free

Easily resize, de-squeeze, and upscale your photos and videos in batches. Apply over 100 templates for social media or custom sizes up to 18,000px for photos and 8K for videos. Optimize format, file size, and color while preserving quality and metadata.

Batch resizing for photos and videosDe-squeeze anamorphic contentUpscale to high resolutions (18,000px photos, 8K videos)
📷 Photo & Video
(771)
freemium
17
Recrop
Recrop
Recrop
2nd chance to reframe pics
$1.99

This app allows you to reframe and recompose photos after they've been taken. It offers unique uncropping, aspect ratios, and grid tools to help achieve balanced compositions without losing resolution.

Unique uncropping functionAspect ratios and grids for reframingStraightening without resolution loss
📷 Photo & Video
(131)
free
18
Calcutron
Calcutron
Calcutron
Aspect Ratio & Size Calculator
$0.99

This tool helps designers, developers, and artists proportionally resize digital assets. Easily calculate new dimensions for images, videos, or layouts by entering one measurement.

Calculate missing dimension automaticallyUse common or custom aspect ratiosSave frequently used sizes
🔧 Utilities
(3)
paid
19
Cinescope
Cinescope
Cinescope
by Poster Child Pictures Inc.
$4.99

This app provides filmmakers with advanced controls for capturing high-resolution video and photos. It offers industry-standard and custom aspect ratios, manual adjustments for focus, exposure, and color, and various shooting modes including slow motion. Optimize your media for social platforms with built-in editing tools.

Custom aspect ratiosManual focus and exposure controlHigh-resolution video capture
📷 Photo & Video
(150)
free
20
Anylight - AI Photo Editor
Anylight - AI Photo Editor
Anylight - AI Photo Editor
Best Photo Editing Experience
Free

This app offers a comprehensive suite of photo editing tools, including retouching, makeup, and general image adjustments. Enhance your photos with features like background manipulation, object removal, and color correction. Some advanced features require a subscription for unlimited access.

Auto-tuningBackground Change/BlurFace Retouch & Makeup
📷 Photo & Video
(4.6K)
freemium

FAQ about Change Aspect Ratio

What are the best change aspect ratio apps for iPhone?
aspect:ratio tops our change aspect ratio apps ranking as of July 2026, with a 3.3-star average from 4 App Store ratings, and it's free to download.
Yes — 16 of the top change aspect ratio apps we rank are free to download, including aspect:ratio and InstaSize: AI Photo Editor.
aspect:ratio has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 183+ change aspect ratio apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
You provide a base ratio and either the width or height, and aspect:ratio automatically computes the corresponding missing dimension. This is useful for ensuring assets maintain specific proportions.
aspect:ratio includes both a dark and a light theme. This allows users to choose the theme that best suits their viewing environment and personal preference.