Saccade: A/B Test-by-Eye
A/B Testing. With Your Eyes.
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Let your eyes choose your best work. Upload images, look at pairs, and your unconscious gaze ranks them. No surveys, no clicks. Just look.
A/B testing. With your eyes. No surveys. No clicks. No opinions. Just look at two images and your unconscious gaze picks the winner.
HOW IT WORKS
1. Upload your variants — two logos, four hero images, eight headshots. Add 2-12 images and Saccade generates every possible A/B pair.
2. Just look — each pair appears for 3-8 seconds. Your iPhone's TrueDepth camera tracks where your gaze lingers. You don't choose — your eyes do.
3. See what wins — instant ranked results with preference strength bars. Share the results card with your team, your client, or your group chat.
WHY IT WORKS
You can't fake where your eyes go. Research shows gaze duration correlates with preference — even when you know you're being tracked. It's called the gaze cascade effect, and it's been used in commercial eye-tracking studies for decades.
WHAT PEOPLE TEST
• Logo & brand variants
• Photo selects from a shoot
• Hero images & thumbnails
• Color palettes & font samples
• Baby names & vacation spots
• Team & client testing — pass the phone around
100% PRIVATE
• No account required — ever
• No data leaves your device
• No cloud, no analytics, no tracking
• Camera used only for real-time gaze detection — no photos or video of your face are recorded
Try Emoji Duel — a built-in game that lets you experience eye tracking instantly, no setup needed.
Requires iPhone X or later.
Ratings & Reviews
Minor copy changes here and there
The developer, Axiomic, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Axiomic, LLC
- Size
- 4.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Axiomic, LLC