Comparison

Chart2020 Lite vs Color Vision Aid

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

Head to head
About

Chart2020 Lite

This app provides a digital eye chart with various testing options, including different chart types and masking features. It offers remote control capabilities via a companion iPhone app or an optional Bluetooth remote, making it suitable for professional and home use.

Highlights
  • Multiple chart types (Sloan/Snellen, Balancing, Astigmatism)
  • Customizable testing distance
  • Variety of letter/number/symbol sets
  • Masking and randomization options
  • Companion iPhone app for remote control
  • Optional Bluetooth remote control
Features
Read full description

Chart Types * Sloan / Snellen Charts * Balancing Charts * Astigmatism Charts Chart Features * Set exact testing testing distance * Quickly switch to near distance testing with distance selector * Letters, Numbers, Kids, E, C, HOTV, 6 Global Fonts * 4 Masking options * Randomize letter set Controllers * Control direct on the iPad * Use the companion iPhone app * See the displayed letters on the iPhone (no neck turning) * Control every feature from the iPhone * Order the Bluetooth Remote Control to control with a 6 button controller Uses * Ophthalmologist and Optometrists * Completely mobile for school testing * Emergency Room * Functional Evaluation Capacity for Companies * Home Use * Students The Chart2020 iPad App comes with a 30 day free trial. After this period you may purchase an auto-renewing subscription through an In-App Purchase. (If you do not maintain a subscription you can only use the App for thirty days and then it will expire) • Auto-renewable subscription • 1 month ($29.99) / 1 Year ($199.99) • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. http://chart2020.com/privacy-policy https://www.chart2020.com/terms-of-use

About

Color Vision Aid

Features
Read full description

ColorVision Aid helps people with color vision deficiencies see the world more accurately. Using advanced GPU-accelerated daltonization technology, the app applies real-time color correction through your device camera. KEY FEATURES: • Live Camera Correction — See corrected colors in real-time through your camera with GPU shader processing • Gallery Processing — Apply color correction to saved photos from your library • Comprehensive Vision Tests — Ishihara plate test, Farnsworth D-15, Cambridge Colour Test, contrast sensitivity, hue discrimination, visual acuity (Snellen/LogMAR), near vision, and Pelli-Robson • Personalized Calibration — Fine-tune correction intensity for your specific color vision type (Protanopia, Deuteranopia, Tritanopia) • Screen Calibration — Calibrate your display for accurate vision test results • Dark Mode Support — System, Light, and Dark theme options • 11 Languages — English, Hindi, Punjabi, French, Spanish, Chinese, Arabic, Portuguese, Japanese, German, Korean SUPPORTED CONDITIONS: • Protanopia (red-weak/blind) • Deuteranopia (green-weak/blind) • Tritanopia (blue-weak/blind) All image processing happens entirely on your device — your photos and camera feed are never uploaded or shared. Built with accessibility in mind, featuring VoiceOver support and voice-controlled testing. DISCLAIMER: This app is for informational and accessibility purposes only and is not a substitute for professional eye examination or medical diagnosis. Consult a qualified eye care professional for clinical evaluation of any vision concerns.

Screenshots

Color Vision Aid4 screens

Verdict

The call

The clearest difference is in-app purchases: Color Vision Aid at none against Chart2020 Lite's 4. Color Vision Aid also leads on update cadence (daily vs every 3 months). Chart2020 Lite's advantage is iOS requirement (12.0 vs 16.0). On price, ads and device support 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

Both are free to download. Chart2020 Lite sells 4 in-app purchases, starting at $7.99 per 7 days. Color Vision Aid asks for nothing beyond the download.

UpkeepUpdate frequency

Chart2020 Lite ships an update every 3 months, Color Vision Aid daily. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Chart2020 Lite versus Color Vision Aid: the parameters behind the verdict, then further details
ParameterChart2020 LiteColor Vision Aid
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 monthsDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPadiPhone, iPad — better
Requires iOS12.0 — better16.0
Further details — not scored
Size58 MB28 MB
Age rating4+12+
DeveloperShemesh Health Solutions PTY LtdJagdeep Singh

In-app purchases

4 purchases

Chart2020 Lite

Subscriptions4
  • Weekly Subscription3 Days trial$7.997 Days
  • Weekly Subscription1 Month trial$7.997 Days
  • Monthly Subscription1 Month trial$19.991 Month
Show 1 more
  • Yearly Subscription1 Month trial$149.991 Year
None

Color Vision Aid

No in-app purchases

Questions

Is Chart2020 Lite free?
Chart2020 Lite is free to download, with in-app purchases available.
Is Color Vision Aid free?
Color Vision Aid is free to download, with no in-app purchases.
Do Chart2020 Lite or Color Vision Aid have ads?
Neither Chart2020 Lite nor Color Vision Aid shows ads.
Which is updated more often, Chart2020 Lite or Color Vision Aid?
Chart2020 Lite ships an update every 3 months, and Color Vision Aid daily. Most recently, Chart2020 Lite was updated on October 14, 2026 and Color Vision Aid on October 25, 2026.

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