This is great
Easy and actually fun to use — discovered a mild discrimination deficit I’d had no idea of… it makes sense though. Everybody should try it — I heartily endorse this app.
Cool tool
Good thing to check out your vision

This app provides a 14-plate color vision screening for red-green and blue-yellow deficiencies. It uses established clinical methodologies and aims to classify the type of deficiency, offering plain-English results and a plate-by-plate review. The entire test runs offline with no sign-ups or ads.
1.0.1
June 23, 2026
Now with colorblindness test plate clock widget! (it's evil, sorry)
No, Color Vision Plates is completely ad-free. The developer explicitly states 'No ads' and that the entire test runs offline without network calls.
Color Vision Plates is free to download and use. The app is listed as 'Free' and does not have any in-app purchases.
Color Vision Plates uses established clinical methodologies like Ishihara and HRR-style plates, with classifier plates designed to help classify deficiency types. However, it is a screening tool, not a medical diagnosis, and results can be affected by phone screen variations.
Yes, the entire test is bundled with the app and runs offline. There are no network calls, and no accounts or tracking are required.
Color Vision Plates is available for iPhone and iPad devices. It is designed to run on these Apple mobile platforms.
The latest version is 1.0.1, which was last updated on June 23, 2026. This indicates a recent update, suggesting ongoing support and potential for future improvements.
Color Vision Plates has an age rating of 4+. This means it is considered suitable for children aged 4 and above.
Color Vision Plates screens for red-green and blue-yellow color vision deficiency. It attempts to classify the type, such as protan (red-weak) or deutan (green-weak).