SMD vs IARVEL
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
IARVEL
This app enhances magic performances by seamlessly connecting with magic props. It offers innovative controls like gestures and voice commands, allowing for personalized illusions and a user-friendly interface. Connect with a magic community and enjoy continuous updates for an evolving experience.
- Connects with Iarvel magic props
- Gesture and voice command controls
- Customizable interface
- Multilingual support
- Magic community integration
- Continuous updates
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The Iarvel App by Iarvel Magic Unlock a world of wonder with The Iarvel App, your ultimate companion for Iarvel magic props like the Iarvel Watch and Iarvel Pad. Seamlessly connecting with your devices, this app transforms your magic performances with innovative controls and a user-centric design. Master Mind-Blowing Illusions Go beyond simple remote control with a variety of input methods, including buttons, gestures, voice commands, and a cleverly disguised fake picture gallery. Whether you're a budding magician or a seasoned illusionist, the app empowers you to create unforgettable performances with unmatched reliability and stability. Personalize Your Magic Customize the app’s intuitive interface and tailor how your Iarvel props function to make every trick uniquely yours. With a cohesive design and multilingual support, the app ensures a seamless experience for users worldwide. Join the Magic Community Connect with fellow magic enthusiasts through the Iarvel Magic Community on Facebook, Instagram, TikTok, and X. Share secrets, learn new techniques, and engage with a vibrant network of Iarvel users even directly from the app. Built for the Future Available on iOS The Iarvel App is designed as a single, feature-packed platform for all your Iarvel devices. Our dedicated team of engineers delivers continuous updates, incorporating user feedback to enhance functionalities, fix bugs, and keep the app compatible with the latest operating systems. With a built-in feedback portal, we ensure your voice is heard, making the app better with every update. Our Promise Since its launch in January 2024, The Iarvel App has set the standard in the magic industry. We promise to never discontinue the app, ensuring it remains your trusted partner for years to come. Download The Iarvel App today and let technology meet magic in the palm of your hand. Connect With Us: Facebook: Iarvel Magic Instagram: iarvelmagic TikTok: iarvelmagic X: iarvelmagic
Screenshots
Verdict
The clearest difference is review sentiment: IARVEL at 100% against SMD's 50%. IARVEL also leads on price (Free vs $19.99) and iOS requirement (15.6 vs 26.0). On update cadence, 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
IARVEL is free to download; SMD costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.
| Parameter | SMD | IARVEL |
|---|---|---|
| Price | $19.99 | Free — better |
| Rating | — | 5.0 (7 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 7 — better |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, Apple Watch | iPhone, iPod, Apple Watch — better |
| Requires iOS | 26.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 1 MB | 266 MB |
| Age rating | 4+ | 17+ |
| Developer | YOSHINOBU HONGO | Guangzhou Hongxuan Technology Development Co., Ltd |
Customer experience
SMD
IARVEL
In-app purchases
SMD
No in-app purchases
IARVEL
No in-app purchases









