Best Resolution Converter Apps

247+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated September 2026

If you already know Image Size, this is the deeper bench. 247+ resolution converter apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of September 2026.

Compare top Resolution Converter Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Image SizeImage SizeFree4.7★ (30K)YesYesSep 2026
2Video Converter and CompressorVideo Converter and CompressorFree4.6★ (2.2K)YesYesSep 2026
3Percentage Resolution ToolPercentage Resolution ToolFree5.0★ (2)NoYesMay 2026
4Image Converter - PNG&PDF&JPEGImage Converter - PNG&PDF&JPEGFree4.5★ (26)YesNoJul 2026
5PDF PhotosPDF PhotosFree4.8★ (14K)YesYesSep 2026
6Convert Any Unit LiteConvert Any Unit LiteFree4.7★ (48K)YesNoSep 2026
7Panda Video Compress & ConvertPanda Video Compress & ConvertFree4.8★ (701)NoYesSep 2026
8AVI to MP4 Converter TransformAVI to MP4 Converter TransformFree—NoYesSep 2026

Top Picks for Resolution Converter

Image Size#1

Image Size by Vitalij Schaefer

Resize your photo! Resizer App
Editor's Choice
📷 Photo & Video
4.7😊(30K ratings)
FreeAdsIn-App Purchases
Image Size screenshot 1
Image Size screenshot 2
Image Size screenshot 3
Image Size screenshot 4
Image Size screenshot 5
Image Size screenshot 6

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.

What We Love

  • 🚀 Straightforward and easy to use
  • 👍 Intuitive user interface
  • 🚀 Quick resizing and editing
  • 💡 Useful features like watermarking and cropping
  • 👍 Saves resized images to separate album
  • 🚀 Efficient for preparing images for social media and printing

Room to Improve

  • 🐛 Occasional issues with image quality after resizing
  • 🔍 Unclear interface for some advanced features
  • 💰 Paid version required to remove ads
  • 🔍 Difficulty finding help/support options
  • 🔍 Inconsistent behavior when resizing/printing images
Video Converter and Compressor#2

Video Converter and Compressor by Inverse.AI

Merge & Shrink Audio, Batch 4K
Strong Contender
📷 Photo & Video
4.6😊(2.2K ratings)
FreeAdsIn-App Purchases
Video Converter and Compressor screenshot 1
Video Converter and Compressor screenshot 2
Video Converter and Compressor screenshot 3
Video Converter and Compressor screenshot 4
Video Converter and Compressor screenshot 5
Video Converter and Compressor screenshot 6

This app converts and compresses video and audio files into numerous formats. It also allows merging video and audio clips, changing resolution, frame rate, and bitrates. Files can be imported from various sources, including cloud services and local devices.

What We Love

  • 🚀 Seamless conversion
  • 👍 User-friendly interface
  • 💡 Helpful for various media tasks
  • 🚀 Fast and efficient
  • 👍 Simple and easy to use
  • 👍 Great compression quality
  • 👍 Excellent converter

Room to Improve

  • 🐛 Conversion issues
  • 🔋 High battery consumption
  • 🔒 Potential security concerns
  • 📢 Annoying ads
  • 🐛 Inconsistent software behavior

More Resolution Converter apps to explore

FAQ about Resolution Converter

What are the best resolution converter apps for iPhone?
Image Size tops our resolution converter apps ranking as of September 2026, with a 4.7-star average from 30K App Store ratings, and it's free to download.
Yes — 20 of the top resolution converter apps we rank are free to download, including Image Size and Video Converter and Compressor.
Image Size shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 247+ resolution converter apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app allows you to resize your photos to a custom size. You can specify the output dimensions using units like pixels, millimeters, centimeters, or inches. It also offers features for cropping, saving, emailing, printing, and sharing your resized images.
To preserve the aspect ratio of your image, simply tap on the chain icon located between the width and height input fields. This will ensure that when you adjust one dimension, the other adjusts proportionally.