SMD vs MagicCloud
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SMD
This tool for Apple Watch detects magnetic fields, offering detailed sensor views and customizable notifications. It provides polarity-specific haptic feedback and is recommended for Series 6 and later models for optimal performance.
- Magnetic field component monitoring (X, Y, Z)
- Customizable sensitivity
- Notification interval settings
- Significant change detection alerts
- Polarity-specific haptic feedback
- Analog Watch Mode for optimal performance
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SMD is a watchOS app that turns Apple Watch into a magnetic detector and provides haptic alerts for nearby magnetic field changes. You can switch between the analog clock screen and the Settings screen with a swipe. SMD offers two operating modes: Manual Mode and Motion Mode. In Manual Mode, detection starts and stops with a tap. In Motion Mode, raising the wrist starts the sensor, and briefly holding still completes the set process and makes the app ready to use. Lowering the wrist stops sensing. Motion Mode also supports tap-based OFF and re-set actions. Detection and alerts become active only after baseline acquisition is complete. Sensitivity can be adjusted from the Settings screen using the Digital Crown. The Settings screen shows ON / OFF status, X / Y / Z values, mode switching, sensitivity, and version information. When magnetic reference is inactive, X / Y / Z values are shown as -.--. Key Features - Magnetic detector functionality using Apple Watch - Haptic alerts - Manual Mode and Motion Mode - Sensitivity adjustment with the Digital Crown - X / Y / Z value display - Automatic polarity detection - Stable single-trigger alert behavior Important Notes - Do not use magnetic watch bands - Strong magnets may temporarily affect sensor readings - Apple Watch Series 10 or later is recommended
MagicCloud
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Magic Cloud APP is an intelligent magic IoT tool designed to work with Magic Cloud smart devices for creating intelligent scenarios.
Screenshots
Verdict
The clearest difference is price: MagicCloud at Free against SMD's $19.99. MagicCloud also leads on iOS requirement (15.1 vs 26.0). SMD's advantage is ads (none vs shown) and update cadence (weekly vs every 3 weeks). On 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
MagicCloud is free to download; SMD costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SMD ships an update weekly, MagicCloud every 3 weeks. Both last shipped on September 30, 2026.
| Parameter | SMD | MagicCloud |
|---|---|---|
| Price | $19.99 | Free — better |
| Positive reviews | 50.0% of reviews | — |
| Update frequency | Weekly — better | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, Apple Watch | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 124 MB |
| Age rating | 4+ | 4+ |
| Developer | YOSHINOBU HONGO | 星灿 李 |
In-app purchases
SMD
No in-app purchases
MagicCloud
No in-app purchases
