Comparison

Resolutioner vs Pixel Contrast Checker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Resolutioner

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.

Highlights
  • Calculate resolutions by filling in one side
  • Edit aspect ratios easily
  • Scale resolutions up or down
  • Save and name custom resolution presets
  • Edit saved presets
  • Sync presets via iCloud
Read full description

Resolutioner by Sun Apps is a simple utility app for calculating and scaling resolutions and aspect ratios. You can input an aspect ratio and calculate a resolution based on it, or you can input a resolution and scale it up or down. For quick reference, you can save an aspect ratio to your Saved Presets, and load it back into the calculator with just one tap. NO ADS OR PREMIUM FEATURES The price you see is the price you pay. There are no ads, premium features, subscriptions, or anything else. And since we don’t collect any data, there’s no data for us to sell! If you really love the app, you can donate via the Tip Jar option (that’s the in-app purchases the App Store shows). SHORTCUTS SUPPORT Resolutioner extends all of its functionality to the Shortcuts app, so you can calculate resolutions, scale resolutions, and determine aspect ratios in Shortcuts or with Siri AI. You can also view, create, and manage your Saved Presets. INTERFACE You can choose from two great interface options, Unified or Split. Unified puts the calculator and Saved Presets on one page, while Split puts them side-by-side or into tabs, depending on screen/window size. You can also turn the theme color on or off, as well as toggle between a monospaced and a standard font design. DESIGNED FOR iOS AND iPadOS Resolutioner has been designed with Liquid Glass in mind, and works great across iPhone, iPad, Mac, and Apple Vision Pro! - Full support for Dark, Tinted, and Clear Home Screen modes - Full multitasking support: multi-window support, keyboard shortcuts, full cursor support, Slide Over + Split View, and more - Choose from five app icon designs - Fully updated for Liquid Glass - iCloud sync support - Dynamic text support

About

Pixel Contrast Checker

This tool helps designers and developers ensure their visual content meets accessibility standards. Analyze images or URLs to instantly check color contrast ratios against WCAG 2.1 guidelines, with features like zoom and a precision loupe for detailed examination.

Highlights
  • Analyze images and URLs
  • WCAG 2.1 contrast ratio checks
  • Instant accessibility evaluation
  • 300% zoom function
  • Precision magnifying glass
  • Save up to 5 images
  • History management
Features
Read full description

Ensure your designs are accessible and legible for everyone. You can analyze images and URLs.Evaluate the color contrast of your web designs, app UIs, and presentation slides based on the WCAG 2.1 international standards. This app provides instant accessibility checks for Standard Text, Large Text, and UI components. You can analyze images and URLs. ■ Key Features Simple Tap-to-Check Just upload an image and tap two points—the background and the text—to instantly calculate the contrast ratio. You can save up to 5 images within the app for quick reference without re-uploading. You can now display a web page by entering a URL and compare by tapping on the page. 300% Zoom Function Magnify your designs up to 300%. Even on a smartphone screen, you can examine fine details and ensure your work is perfect. Precision Magnifying Glass (Loupe) The built-in magnifying glass appears when you tap, allowing you to target and select specific pixels with pinpoint accuracy—ideal for complex designs or gradients. You can set the magnification of the loupe from 2x to 5x. History Management Save your results with a single tap. View your history of contrast ratios and HEX color codes at a glance. (Note: History is maintained during the current session and resets when the app is closed or a new image is selected.) Full WCAG 2.1 Compliance The app automatically determines if your colors meet the 4.5:1 ratio required for accessibility, making it easy to see if your content is truly readable. ■ Who It’s For Web, UI, and UX Designers App Developers & Front-end Engineers Business professionals creating presentations or flyers Any creator focused on inclusive, accessible design ■ Supported Formats JPEG, PNG, and HEIC High-resolution images up to 4000px Import directly from your Photo Library or Files app ■ Privacy First Your privacy is our priority. All image analysis is performed locally on your device. No data is ever uploaded to external servers.

Screenshots

Resolutioner4 screens
Pixel Contrast Checker4 screens

Verdict

The call

The clearest difference is price: Pixel Contrast Checker at Free against Resolutioner's $0.99. Pixel Contrast Checker also leads on in-app purchases (none vs 5) and update cadence (weekly vs every 33 months). Resolutioner's advantage is ads (none vs shown) and chart position (#8 vs unranked). On iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Pixel Contrast Checker is free to download; Resolutioner costs $0.99 up front. Resolutioner sells 5 one-off in-app purchases. Pixel Contrast Checker asks for nothing beyond the download.

UpkeepUpdate frequency

Resolutioner ships an update every 33 months, Pixel Contrast Checker weekly. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

Scorecard7 real differences · 4 level
Resolutioner versus Pixel Contrast Checker: the parameters behind the verdict, then further details
ParameterResolutionerPixel Contrast Checker
Price$0.99Free — better
Rating4.5 (946 ratings) — better—
Positive reviews79.6% of reviews—
Number of ratings946 — better—
Update frequencyEvery 33 monthsWeekly — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
Best chart rank#8 — better—
DevicesiPhone, iPad, Mac, Vision Pro — betteriPhone, iPad
Requires iOS17.0 — better18.3
Further details — not scored
Size40 MB12 MB
Age rating4+17+
DeveloperSun Apps, LLCYONEMASU, K.K

Bugs and requests

Resolutioner

Reported bugs

8 issues
  • Resolution does not change
  • App does not work
  • Screen size remains the same
  • App is buggy
  • Cannot submit resolution
Show 3 more
  • Does not change FOV
  • Lagging device
  • Resetting issues

Requested features

4 requests
  • Add sync to device option
  • Add button to improve/submit resolution
  • Allow reordering of presets for better organization
  • Ability to use created scales in computer settings

Pixel Contrast Checker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Resolutioner

One-time5
  • Tip Jar - $0.99$0.99
  • Tip Jar - $1.99$1.99
  • Tip Jar - $2.99$2.99
Show 2 more
  • Tip Jar - $4.99$4.99
  • Tip Jar - $9.99$9.99
None

Pixel Contrast Checker

No in-app purchases

Questions

Is Resolutioner free?
Resolutioner costs $0.99, and also offers in-app purchases.
Is Pixel Contrast Checker free?
Pixel Contrast Checker is free to download, with no in-app purchases.
Do Resolutioner or Pixel Contrast Checker have ads?
Pixel Contrast Checker shows ads; Resolutioner does not.
Which is updated more often, Resolutioner or Pixel Contrast Checker?
Resolutioner ships an update every 33 months, and Pixel Contrast Checker weekly. Most recently, Resolutioner was updated on October 14, 2026 and Pixel Contrast Checker on October 11, 2026.

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