Best Contrast Button Apps & Games

42+ iOS apps & games curated and reviewed

4.3 avg rating
16 free apps & games
Updated May 2026

Looking for free contrast button apps and games? 16 of our 42+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Contrast Button

Big Button Calculator Pro Lite#1

Big Button Calculator Pro Lite by Cider Software LLC

Easy Basic Calculator
Editor's Choice
🔧 Utilities
4.7😊(13K ratings)
FreeAds
Big Button Calculator Pro Lite screenshot 1
Big Button Calculator Pro Lite screenshot 2
Big Button Calculator Pro Lite screenshot 3
Big Button Calculator Pro Lite screenshot 4
Big Button Calculator Pro Lite screenshot 5

Experience the ultimate iOS calculator with big buttons, dual-line display, 18 color themes, and multi-line input for complex equations. Includes convenient gestures like swipe to backspace and clear. Perfect for all your calculating needs!

What We Love

  • 👍 Easy to use
  • 💡 Customizable backgrounds
  • 🚀 Accurate calculations
  • 👍 Large, clear numbers

Room to Improve

  • 🐛 Ads can be intrusive
  • 🐛 Ads in foreign languages
  • 🐛 Ads take time to close
Lock Launcher - Screen Widgets#2

Lock Launcher - Screen Widgets by 自力 黄

Home Widget Island Control 26
Strong Contender
🎨 Graphics & Design
4.7😊(3.8K ratings)
FreeIn-App Purchases
Lock Launcher - Screen Widgets screenshot 1
Lock Launcher - Screen Widgets screenshot 2
Lock Launcher - Screen Widgets screenshot 3
Lock Launcher - Screen Widgets screenshot 4
Lock Launcher - Screen Widgets screenshot 5
Lock Launcher - Screen Widgets screenshot 6

Unlock the power of your Android home screen with Lock Launcher - Screen Widgets. Access quick shortcuts, notifications, and important information right from your lock screen. Customize your widgets for a more efficient smartphone experience. Download now to streamline your daily interactions.

What We Love

  • 👍 Customizable Lock Screen and Dynamic Island
  • 🚀 Efficient use of Live Activities
  • 💡 Innovative app launcher on Lock Screen
  • 🤩 Lots of free features

Room to Improve

  • 🐛 Occasional crashes or bugs
  • 🔄 Needs to be reopened periodically
  • 🤔 Confusing setup for some users
Calculator HD Pro Lite#3

Calculator HD Pro Lite by Cider Software LLC

Basic & Scientific Calc
Worth Considering
🔧 Utilities
4.6😊(51K ratings)
FreeAds
Calculator HD Pro Lite screenshot 1
Calculator HD Pro Lite screenshot 2
Calculator HD Pro Lite screenshot 3
Calculator HD Pro Lite screenshot 4
Calculator HD Pro Lite screenshot 5

A professional-grade calculator app designed for quick and accurate mathematical calculations on-the-go. Upgrade to the full version for advanced features and functionalities.

What We Love

  • 👍 Easy to use
  • 📝 Keeps calculation history
  • 💡 Customizable layout and themes
  • 🔢 Large, clear numbers

Room to Improve

  • 💢 Intrusive ads, especially between calculations
  • 🙄 Ads that are difficult to close
  • 🤦‍♂️ Ads that interrupt workflow

More Contrast Button apps to explore

4
Contrast Photo Editor
Contrast Photo Editor
Contrast Photo Editor
by Akio Nakashima
Free
📷 Photo & Video
(0)
5
iContrast
iContrast
iContrast
Contrast/brightness adjust
Free

This photo adjustment app helps fix contrast and brightness issues in images, including x-rays and MRIs, with a simple slider-based interface. Easily select a photo, adjust the contrast, and save or share the enhanced image with just a few taps.

📷 Photo & Video
(0)
6
DAC Color Contrast Checker
DAC Color Contrast Checker
DAC Color Contrast Checker
WCAG Accessibility Tool
Free
🔧 Utilities
(0)
7
Big Button Calculator Pro
Big Button Calculator Pro
Big Button Calculator Pro
Easy Basic Calculator
$9.99
🔧 Utilities
(431)
8
CONTRAST - Color Accessibility
CONTRAST - Color Accessibility
CONTRAST - Color Accessibility
Calculate the color contrast
$2.99
$4.99 | 40% OFF

Easily check color contrast against accessibility standards with this tool, supporting multiple color formats and offering useful features like preview, random color generation, and dark mode. Improve your design's inclusivity by ensuring your color choices are universally perceivable.

🎨 Graphics & Design
(2)
9
LRV Contrast Calculator
LRV Contrast Calculator
LRV Contrast Calculator
by Behzad Gorimar
Free

This application helps professionals quickly calculate the required luminance contrast between adjoining materials to ensure accessibility for people with low vision, as per ADA and DDA guidelines. Simply input the Light Reflectance Values of two surfaces to determine the contrast percentage and ensure compliance with US or Australian standards.

🔧 Utilities
(0)
10
Photo Contrast Adjustment
Photo Contrast Adjustment
Photo Contrast Adjustment
Brightness , Blur adjustment
Free
📷 Photo & Video
(1)
11
FOTONICA
FOTONICA
FOTONICA
Stylish First-Person Running
$4.99

Experience the thrill of speed and agility in a stylish first-person running game that offers simple one-handed controls and challenging gameplay. Race through intricate environments, master eight levels, compete in split-screen multiplayer, set high scores in endless modes, and enjoy unique vector graphics and electronic music. Join the exhilarating journey through light and void without ads or in-app purchases. Download now and see if you can outrun your friends!

🎮 Games
(69)
12
Accessibility Checker - AI EAA
Accessibility Checker - AI EAA
Accessibility Checker - AI EAA
Full WCAG Audit & Color Picker
Free

This application helps assess website accessibility and compliance with European accessibility legislation by running automated tests and providing a color contrast tool to ensure visually accessible content. It enables users to test websites, measure color contrast, and generate reports to ensure conformance with international accessibility guidelines.

🔧 Utilities
(26)
13
Magniscope
Magniscope
Magniscope
Easy to use Magnifying Glass
Free

This easy-to-use magnifying glass app offers a range of features, including live filters, autofocus, and video stabilization, to help users magnify and enhance their view of small text and objects. With both basic and advanced tools, users can adjust settings in real-time to suit their needs, making it ideal for reading, everyday tasks, and various situations.

💪 Health & Fitness
(64)
14
Actions
Actions
Actions
Useful actions for Shortcuts
Free

Access a collection of additional actions for the Shortcuts app, enhancing your productivity. Experience a variety of functionalities, from formatting dates to generating random data, free of ads. Elevate your shortcuts by restarting your device if actions do not immediately appear. Join the community and share your feedback for future improvements.

🔧 Utilities
(375)
15
K-D Color Contrast Sensitivity
K-D Color Contrast Sensitivity
K-D Color Contrast Sensitivity
Chart for Macular Degeneration
Free
🏥 Medical
(1)
16
ColorContrastChecker
ColorContrastChecker
ColorContrastChecker
by Yukio YOKOTA
Free
🔧 Utilities
(1)
17
ReBokeh
ReBokeh
ReBokeh
See Your World
Free

Experience enhanced visual abilities with our app designed specifically for the visually impaired community. Customize contrast, exposure, color inversion, and more in real time for a personalized viewing experience. Save your preferences as presets for quick accessibility. For more information, visit our privacy policy and terms of service.

🔧 Utilities
(30)
18
Contrast Cards & Patterns
Contrast Cards & Patterns
Contrast Cards & Patterns
Visual Stimulation Patterns
Free
📚 Education
(0)
19
Contrasts - WCAG Colors
Contrasts - WCAG Colors
Contrasts - WCAG Colors
Accessibility Color Picker
Free
🎨 Graphics & Design
(15)
20
visor - magnifier
visor - magnifier
visor - magnifier
magnifier for low vision
$17.99

This mobile app is a magnifying glass and reading aid for people with low vision, allowing users to enlarge text and objects with up to 8x magnification and adjust contrast to suit their needs. With features like LED flash, autofocus, and screenshot mode, users can easily navigate and capture content, making it a helpful tool for everyday tasks.

🏥 Medical
(11)