Uno Gallery vs Magnetic Sensor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Uno Gallery
This app serves as a live testing ground for XAML code, demonstrating the capabilities of a cross-platform development library. It allows developers to experiment with UI elements and features for iOS applications using familiar WinUI APIs.
- Live XAML code testing
- Showcases Uno Platform library features
- Supports MVVM patterns
- Live UI editing with Visual Studio
- Compatible with WinUI projects
- Easy third-party support
- Access to native platform APIs
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Uno is the WinUI Bridge .NET Library to enable true cross-platform development, using the WinUI APIs as a common ground. This application showcases a playground for testing XAML code live, and the view the features of Uno platform library for iOS. Uno Platform key features: Support for MVVM Patterns, data-binding, styling, animations, controls and Data Templating. Benefit from Live UI Editing with Visual Studio's Xaml edit-and-continue. Compatible with existing WinUI projects/codebases. Third-Party support is easy. Easy access to the underlying platform APIs. Controls and panels respect WinUI's API but inherit directly from Native classes (UIView on iOS). Developers have complete control if platform-specific tweaks are required.
Magnetic Sensor
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Magnetic Sensor turns your phone's built-in magnetometer into three precise tools: • Compass — A live, tilt-compensated compass with cardinal direction (N/E/S/W) and adjustable magnetic declination so the needle points to true north, not just magnetic north. • Metal Detector — Set a baseline reading anywhere, choose Low/Med/High sensitivity, and feel haptic pulses that get stronger as the field deviates. Perfect for finding studs in a wall, screws under drywall, or rebar in concrete. • Field Logger — Record samples at up to 60 Hz, then export to CSV via the share sheet. Saved recordings stay in the app for replay or re-export. KEY FEATURES • Live X / Y / Z axis readings + total field magnitude • Tilt-compensated heading using the accelerometer • Magnitude history sparkline + multi-channel chart • Rolling statistics: mean, standard deviation, RMS, range • Figure-8 calibration helper with quality indicator • Min / Max tracking with one-tap reset • Three sample rates: Slow (500 ms), Normal (100 ms), Fast (16 ms) • Light / Dark / System theme • English and Korean • Unit options: μT, mGauss, nT • Adjustable smoothing • Magnetic declination presets • Haptic alerts for the detector • Keep-screen-awake while recording • CSV export with full timestamp + per-axis data PRIVACY All sensor data is processed on-device and never leaves your phone. The app does not collect location, contacts, or personal information. Anonymous mobile advertising is used to keep the app free; you can watch a rewarded ad to unlock unlimited CSV sharing for the session. WHO IT'S FOR • Hobbyists exploring magnetic fields • DIYers detecting screws, studs, and rebar • Students collecting data for physics or geology projects • Hikers wanting a reliable phone compass • Anyone curious about the invisible field around them REQUIREMENTS A device with a magnetometer (most phones built since ~2013). The app cannot work on devices without one — it will tell you on launch.
Screenshots
Verdict
The clearest difference is ads: Uno Gallery at none against Magnetic Sensor's shown. Magnetic Sensor's advantage is update cadence (fortnightly vs every 12 months). On price, in-app purchases, device support and iOS requirement 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.
Uno Gallery ships an update every 12 months, Magnetic Sensor fortnightly. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.
| Parameter | Uno Gallery | Magnetic Sensor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (2 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 12 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.2 — better | 15.1 |
| Further details — not scored | ||
| Size | 156 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Uno Platform Inc. | Seonggon Sim |
In-app purchases
Uno Gallery
No in-app purchases
Magnetic Sensor
No in-app purchases
Questions
Is Uno Gallery free?
Is Magnetic Sensor free?
Do Uno Gallery or Magnetic Sensor have ads?
Which is updated more often, Uno Gallery or Magnetic Sensor?
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