CONTRAST Downloads & RevenueCONTRAST - Color Accessibility · App Store
色比 - 色彩无障碍设计之对比度
CONTRAST - Color Accessibility is #30 in Graphics & Design Paid in China and charting in 6 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
Developer才熹 郑
CategoryGraphics & Design
Price3.00 CNY
Released
Rating★ 5.0 (6)
Version2.2.0
Age rating4+
First seen by us
24 Sep 2026
24 Sep 2026Installs (est.)500+ worldwide
CONTRAST - Color Accessibility update history & changes
Last change · 18 events since 18 Oct 2019Full timeline ↓💰Price drop💰Price drop📦First update in 432 days📦Updated to version 2.2.0📈Charting in a new country in 2 charts📈Charting in a new country in 4 charts🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 17 events in the last 12 months
- ✏️CONTRAST - Color Accessibility: app got smaller5 MB → 4 MB (-12%)
- ✏️CONTRAST - Color Accessibility: needs a newer iOSiOS 13.0 → iOS 15
- 💰CONTRAST - Color Accessibility: price drop19.90 BRL → 6.90 BRL · BR
- 💰CONTRAST - Color Accessibility: price drop3.99 CAD → 0.99 CAD · CA
- 💰CONTRAST - Color Accessibility: price drop2.99 GBP → 0.99 GBP · GB
- 📦CONTRAST - Color Accessibility: first update in 432 days
- 💰CONTRAST - Color Accessibility: price drop299.00 INR → 99.00 INR · IN
- 💰CONTRAST - Color Accessibility: price drop2.99 USD → 0.99 USD · US
- 💰CONTRAST - Color Accessibility: price drop12.99 SAR → 4.99 SAR · SA
- 📦CONTRAST - Color Accessibility updated to version 2.2.0Updated for iOS 27, with improvements to the experience on the new system.
- 💰CONTRAST - Color Accessibility: price drop2.99 EUR → 0.99 EUR · FR
- 💰CONTRAST - Color Accessibility: price drop22.00 CNY → 3.00 CNY · CN
- 💰CONTRAST - Color Accessibility: price drop4.99 AUD → 1.99 AUD · AU
- 📈CONTRAST - Color Accessibility charting in a new country in 2 chartsCanada · United Kingdom
- 📈CONTRAST - Color Accessibility charting in a new country in 4 chartsAustralia · France · Saudi Arabia · United States
- 🆕CONTRAST - Color Accessibility first spotted by AppInsider#44 in Top Paid · Graphics & Design · China
- 🆕CONTRAST - Color Accessibility released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
6 ratings
Measured
Best rank now
#30
Graphics & Design PaidMeasured
CONTRAST - Color Accessibility on the App Store
App details
App ID
1479393385
Publisher
才熹 郑
On the store since
Oct 2019
7 years on the store
Minimum OS
iOS 15+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
9
EN FR DE IT JA KO RU ZH ZH
Size
4 MB
Also listed in
Utilities
CONTRAST - Color Accessibility downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| China | Graphics & DesignPaid | #30 |
 United States | Graphics & DesignPaid | #179 |
 France | Graphics & DesignPaid | #142 |
 Brazil | Graphics & DesignPaid | #115 |
 India | Graphics & DesignPaid | #179 |
 Australia | Graphics & DesignPaid | #182 |
Apps near CONTRAST - Color Accessibility on the chart
Graphics & Design Paid, around #30.
Ratings
App Store, worldwide.
Rating
5.0 ★
6 ratings
Measured
Ratings
6
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
5.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Graphics & Design apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About CONTRAST - Color Accessibility
Contrast is a tool to measure the contrast between two colors, helping ensure your app meets the internationally recognized recommendations in the Accessibility Guidelines (e.g., WCAG 2.0 1.4.3).
- Support to preview the color
- Support Hex, RGB, HSB, CMYK input
- Support random color
- Support Dark mode
- Support Collection
- iCloud sync
If you think color is easy to use, you can recommend it to your design friends. At the same time, we welcome you to rate us in the App Store!
- Support to preview the color
- Support Hex, RGB, HSB, CMYK input
- Support random color
- Support Dark mode
- Support Collection
- iCloud sync
If you think color is easy to use, you can recommend it to your design friends. At the same time, we welcome you to rate us in the App Store!
Latest updates
2.2.0
Updated for iOS 27, with improvements to the experience on the new system.
2.1.0
Store changes
What CONTRAST - Color Accessibility changed on its store page: name, icon, screenshots, price, size, languages, requirements.
App got smaller
5 MB → 4 MB (-12%)
Needs a newer iOS
iOS 13.0 → iOS 15
Price drop
19.90 BRL → 6.90 BRL
