SMD Downloads & RevenueSMD - Simple Magnetic Detector · App Store
SMD - Simple Magnetic Detector is #195 in Utilities Paid in Japan and charting in 1 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperYOSHINOBU HONGO
CategoryUtilities
Price29.99 AUD
Released
Rating★ 0.0 (0)
Version4.2
Age rating4+
First seen by us
26 Sep 2026
26 Sep 2026SMD - Simple Magnetic Detector update history & changes
Last change · 6 events since 25 Mar 2023Full timeline ↓📈Charting in a new country📈Entered the top 10🆕First spotted by AppInsider📦Version 4.2🆕Released on the App Store
Full timeline · 6 events
- 📈SMD - Simple Magnetic Detector charting in a new countryJapan
- 📈SMD - Simple Magnetic Detector entered the top 10Top Paid · Utilities · IN
- 📈SMD - Simple Magnetic Detector charting in a new countryIndia
- 🆕SMD - Simple Magnetic Detector first spotted by AppInsider#47 in Top Paid · Utilities · Australia
- 📦SMD - Simple Magnetic Detector version 4.2- Sensitivity level is now displayed directly on the Analog Watch View
- Sensitivity can be adjusted via the Digital Crown without leaving the Analog Watch View
- The sensitivity indicator automatically disappears after Crown input
Everything now works entirely within the Analog Watch View — no need to open Settings.… more - 🆕SMD - Simple Magnetic Detector released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
Best rank now
#195
Utilities PaidMeasured
SMD - Simple Magnetic Detector on the App Store
App details
App ID
6446756301
Publisher
YOSHINOBU HONGO
On the store since
Mar 2023
3 years on the store
Minimum OS
iOS 26.0+
iPhone 11 and later
Devices
iPhone · iPad · Watch
Content rating
4+
Languages
1
EN
Size
1 MB
Also listed in
Entertainment
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | UtilitiesPaid | #195 |
Apps near SMD - Simple Magnetic Detector on the chart
Utilities Paid, around #195.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
What users say about SMD - Simple Magnetic Detector
From recent reviews.
About SMD - Simple Magnetic Detector
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
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
Latest updates
4.2
- Sensitivity level is now displayed directly on the Analog Watch View
- Sensitivity can be adjusted via the Digital Crown without leaving the Analog Watch View
- The sensitivity indicator automatically disappears after Crown input
Everything now works entirely within the Analog Watch View — no need to open Settings.