SMD vs OneCuePro
Price, ratings, monetisation and update history for both apps, side by side โ 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
OneCuePro
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OneCue is a show audio app for performers who run the show alone โ magicians, street performers, dancers and MCs. During a show you are performing. You do not have time to look at a screen. With OneCue, one press of Next on a Bluetooth remote plays the next song, fires a sound effect, changes the volume or stops the music โ in the order you set. โ Preparing is just lining things up Put what happens in order, from top to bottom, and your show is ready. - Play Song (including a crossfade from the current song) - Layer Sound (a sound effect over the music, without stopping it) - Change Volume (drop it while you talk, then bring it back) - Stop Song - Pause / Resume Group them into parts, one per routine, so even a long show stays easy to read. โ No need to watch the screen Show mode is built for one glance in a dark venue: a black screen with the song playing now and what happens next. Tapping anywhere on the screen also advances, so you can hit it by feel. โ Recover when the show goes off script Shows do not always run in order. Open the cue list and jump straight to the point that matches what you are doing now. โ Name cues in your own words Write your own trigger, like "When they pick a card", for the ones that are hard to remember. Leave the obvious ones unnamed. โ Volume presets per venue Set High / Medium / Low once and reuse them across the show. โ OneCue Pro (one-time purchase) The free version holds one cue sheet with up to 15 actions. Upgrading to OneCue Pro gives you: - Unlimited cue sheets and actions - iCloud sync between iPhone and iPad It is a one-time purchase, not a subscription. Note: a Bluetooth remote that sends the media "next track" signal gets the most out of OneCue, but you can use the app with screen taps alone.
Screenshots
Verdict
The clearest difference is price: OneCuePro at Free against SMD's $19.99. OneCuePro also leads on iOS requirement (16.0 vs 26.0). SMD's advantage is in-app purchases (none vs 1). On update cadence, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
OneCuePro is free to download; SMD costs $19.99 up front. OneCuePro sells 1 one-off in-app purchase. SMD asks for nothing beyond the download.
SMD ships an update weekly, OneCuePro every 2 weeks. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.
| Parameter | SMD | OneCuePro |
|---|---|---|
| Price | $19.99 | Free โ better |
| Positive reviews | 50.0% of reviews | โ |
| Update frequency | Weekly โ better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Monetization | Paid | โ |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 26.0 | 16.0 โ better |
| Further details โ not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | YOSHINOBU HONGO | MINORI ONUKI |
In-app purchases
SMD
No in-app purchases
OneCuePro
- OneCue Pro$17.99









