DaltoTest - Color Blind Test
Olivier Morel Health & Fitness iPhoneiPadiPod touch
DaltoTest - Color Blind Test is a free Health & Fitness app for iPhone and iPad by Olivier Morel. Requires iOS 17.6. Updated September 5, 2026.
- Price
- Free
- on the App Store
- Size
- 21 MB
- Age 4+
- Updated
- Sep 5
- 2026 · v1.0.1
Screenshots
About DaltoTest - Color Blind Test
DaltoTest screens color vision wherever you are, with five methods inspired by ophthalmology: no appointment, no specialized equipment, no account to create. FIVE METHODS • Ishihara plates: numbers hidden in colored dots, red-green screening • Farnsworth D-15: arrange 15 caps in a gradient, blue-yellow coverage • Extended FM-100 test: 96 caps in 4 rows, more sensitive to mild deficiencies • Lantern test: identify brief signal lights, professional-qualification style • Test inspired by the Cambridge Colour Test: spot a ring hidden in a dot mosaic Wondering about your color vision? It happens: you wonder if you really see red and green the way everyone else does, or if your kid keeps mixing up colors at school. DaltoTest lets you check in a few minutes, wherever you are, no appointment needed. PRIVATE BY DESIGN • All data stays on your device • No account, no server, no sync • No data is ever sent anywhere • No analytics or advertising tracking tools DaltoTest is not a medical device. This is a screening tool, for informational purposes only. It does not replace an examination by a healthcare professional. If in doubt about a result, consult an ophthalmologist.
What’s new
Version 1.0.1 · Updated September 5, 2026
Added a quick way to rate DaltoTest right from the About screen.
App privacy
The developer, Olivier Morel, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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