Stray Scanner vs SaferHands
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stray Scanner
Capture color, depth, and IMU data using your device's LiDAR sensor. Export these datasets to your computer for machine learning and dense mapping projects. Streamline the process of collecting RGB-D data without complex calibration.
- Record color images
- Capture depth frames
- Export IMU measurements
- Estimate camera position
- Access camera calibration matrix
- Transfer datasets to desktop
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Note: requires a device with LiDAR. The iPad Pro, iPhone 12 Pro or iPhone 12 Pro Max currently have LiDAR sensors on them. Stray Scanner allows you to record color, depth and IMU datasets and export them to your desktop computer. For machine learning and dense mapping applications, you need a dataset to work with. Stray Scanner allows you to collect RGB-D datasets with your iPhone. The recorded datasets contain: - color images - depth frames from the LiDAR sensor - depth confidence maps - camera position estimates for each frame - camera calibration matrix - IMU measurements Once recorded, the datasets can easily be moved to your desktop computer by connecting your device with a Lightning cable and accessing the files through Finder. Put your iPhone's LiDAR scanner to good use. No more fumbling around calibrating and configuring depth sensors. Shoot datasets straight from your iPhone.
SaferHands
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Explore how hand tracking can be used for machine safety with your phone camera! When a hand is visible sound will play and the device will vibrate. If the hand is inside an orange warning zone the sound playing will be lower volume. When a hand is inside the red danger zone the sound and vibrations will stop completely.
Screenshots
Verdict
The clearest difference is update cadence: SaferHands at every 2 months against Stray Scanner's every 6 months. SaferHands also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.6). On price, ads and in-app purchases 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.
Stray Scanner ships an update every 6 months, SaferHands every 2 months. The most recent releases landed on October 13, 2026 and September 12, 2026 respectively.
| Parameter | Stray Scanner | SaferHands |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 6 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 150 MB |
| Age rating | 4+ | 4+ |
| Developer | Kenneth Blomqvist | ManoMotion |
In-app purchases
Stray Scanner
No in-app purchases
SaferHands
No in-app purchases
Questions
Is Stray Scanner free?
Is SaferHands free?
Do Stray Scanner or SaferHands have ads?
Which is updated more often, Stray Scanner or SaferHands?
Other comparisons
