Stray Scanner vs Weights & Biases
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.
Weights & Biases
Monitor machine learning experiments in real time from your mobile device. Get notified about important events like run completion or metric changes. Quickly review results and track key performance indicators for your training runs.
- Monitor live and completed runs
- View training curves
- Track loss, accuracy, and custom metrics
- Receive run completion notifications
- Get alerted on key metric changes
- Sanity-check results quickly
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Your model trains for hours. You shouldn't have to be at your desk the whole time. Weights & Biases for iOS puts your experiments in your pocket. Check on a run during a seminar, catch a diverging loss before you leave the lab, or find out why a run crashed without opening your laptop. SEE WHAT'S HAPPENING • Browse your projects and runs, with your starred and recent projects first • Pan, zoom and scrub training curves to read exact values at any step • Switch to log scale, choose your x-axis, and adjust each chart to fit • Open the Overview tab for config, summary metrics, hardware and environment details • Read live logs when a run does something unexpected KNOW WHEN IT MATTERS • Get a push notification when a run fails • Set metric alerts, such as "notify me if validation loss increases by at least 10%" • Tap a notification to go straight to the run ACT ON IT • Stop a run that's gone wrong from your phone, so you stop burning GPU hours BUILT FOR HOW RESEARCHERS WORK No dashboards to rebuild. Sign in with your existing W&B account, and the app shows the projects you already track. The charts you see on the web are the ones you see on your phone. Whether you're fine-tuning an LLM, training a model from scratch, or racing a conference deadline, W&B mobile helps you spend less time checking and more time thinking. Available for Free, Academic, Enterprise (SaaS) and Dedicated Cloud accounts. On-premises deployments are not yet supported.
Screenshots
Verdict
The clearest difference is rating: Stray Scanner at 5.0 against Weights & Biases's 4.1. Weights & Biases's advantage is update cadence (weekly vs every 6 months). On price, review sentiment, ratings volume and ads 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 holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 6 and 14 respectively. Written reviews complicate that: 75% of Stray Scanner's written reviews are positive against 77% of Weights & Biases's, so the app with the better star average is not the one people write more warmly about.
Stray Scanner ships an update every 6 months, Weights & Biases weekly. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.
| Parameter | Stray Scanner | Weights & Biases |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | 4.1 (14 ratings) |
| Positive reviews | 75.0% of reviews | 76.9% of reviews — better |
| Number of ratings | 6 | 14 — better |
| Update frequency | Every 6 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 18.6 | 18.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Kenneth Blomqvist | Weights and Biases |
Customer experience
Stray Scanner
Weights & Biases
In-app purchases
Stray Scanner
No in-app purchases
Weights & Biases
No in-app purchases
Questions
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Is Weights & Biases free?
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