Centrios vs Saccade
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Centrios
Manage business access remotely with a smart lock system. Control locks, grant temporary access to staff and visitors, and monitor activity logs. Ideal for businesses needing secure and flexible entry management.
- Unlock and lock doors remotely
- Grant access to staff and visitors
- Create and edit access schedules
- View activity and access history
- Manage multiple locations
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Centrios is a smart access platform designed specifically for small and growing businesses just like yours. With our intuitive and easy-to-use app, you can connect your Centrios smart locks and smart readers to your business in the matter of seconds. With the Centrios app, you can: Unlock and lock your locks with the touch of your mobile phone. Grant access to staff and visitors to multiple devices. Create and edit access schedules. View recent activities including access history, low battery reports, and more. View system details including subscription level and user capacities. Manage and access multiple locations with a single sign on. Get started today!
Saccade
This app uses your iPhone's TrueDepth camera to track your gaze and determine unconscious preferences between visual variants. Upload images, look at pairs, and receive instant ranked results based on where your eyes linger.
- Upload multiple image variants
- Automatic A/B pair generation
- Real-time gaze tracking
- Instant ranked preference results
- Privacy-focused, no account needed
- Built-in Emoji Duel game
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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.
Screenshots
Verdict
The clearest difference is rating: Saccade at 5.0 against Centrios's 4.5. Saccade also leads on update cadence (every 2 days vs every 6 weeks) and monetization model (free vs ad-supported). Centrios's advantage is ratings volume (17 vs 1) and iOS requirement (16.0 vs 26.0). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Saccade holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Centrios has 17 ratings behind it against 1, so its average is the more settled of the two.
Centrios ships an update every 6 weeks, Saccade every 2 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | Centrios | Saccade |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (17 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 90.5% of reviews | — |
| Number of ratings | 17 — better | 1 |
| Update frequency | Every 6 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 371 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | ASSA ABLOY Canada Ltd. | Axiomic, LLC |
Customer experience
Centrios
Saccade
In-app purchases
Centrios
No in-app purchases
Saccade
No in-app purchases









