QR Scanner vs Magnetic Sensor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QR Scanner
Instantly scan QR codes and barcodes with automatic recognition. Create custom, stylish QR codes from text or URLs with various design options. Manage your scan history locally on your device.
- Instant QR and barcode scanning
- Scan QR codes from photos
- Stylish QR code generator
- Scan history management
- Smart actions for scanned data
- Local data processing for privacy
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The ultimate QR code scanner and generator with a stunning cyberpunk design. Scan any QR code or barcode instantly, create beautiful custom QR codes, and manage your scan history — all in one app. KEY FEATURES ▸ INSTANT SCANNING Point your camera at any QR code or barcode for instant recognition. No button press needed — it's fully automatic. ▸ SCAN FROM PHOTOS Import images from your gallery to scan QR codes from screenshots, photos, or saved images. ▸ STYLISH QR GENERATOR Create QR codes from any text or URL. Choose from 12 beautiful style presets including gradients, or design your own with the custom color picker. ▸ SCAN HISTORY All your scans are saved automatically. Search, copy, or delete any scan. Set auto-delete to keep things tidy (7, 30, or 90 days). ▸ SMART ACTIONS Copy scanned text to clipboard, open URLs directly in your browser, or share results with anyone — all with one tap. ▸ 20 LANGUAGES Available in English, Korean, Japanese, Chinese, Spanish, French, German, Portuguese, Russian, Arabic, Hindi, Indonesian, Thai, Vietnamese, Turkish, Italian, Dutch, Polish, and Malay. SUPPORTED FORMATS QR Code, EAN-13, EAN-8, Code 128, Code 39, UPC-A, UPC-E, PDF417, Aztec, Data Matrix PRIVACY FIRST All scanning and QR generation happens locally on your device. No data is sent to any server. Your scan history stays on your phone. Download QR Scanner now and experience the fastest, most beautiful way to scan and create QR codes!
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 update cadence: Magnetic Sensor at fortnightly against QR Scanner's every 2 months. 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.
QR Scanner ships an update every 2 months, Magnetic Sensor fortnightly. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.
| Parameter | QR Scanner | Magnetic Sensor |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 45 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | SeungMan Choi | Seonggon Sim |
In-app purchases
QR Scanner
No in-app purchases
Magnetic Sensor
No in-app purchases
Questions
Is QR Scanner free?
Is Magnetic Sensor free?
Do QR Scanner or Magnetic Sensor have ads?
Which is updated more often, QR Scanner or Magnetic Sensor?
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