D+ vs The Metal Detector
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
D+
Automate your home with a wireless smart home system. Control appliances, lighting, security, and more remotely. Enjoy personalized comfort and enhanced home management.
- Security alarm
- Fingerprint access
- Remote video monitoring
- Appliance control
- Curtain control
- Scene and timing control
- Energy saving
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when you come back home and open the door ,the temperature system have already prepare a nice temperature for you. when you open the fingerprint doorlock by your fingerprint,the light will turn on and play the music at the same time. wherever you are ,smart home system will manager your all appliances automation for your home. we have ready for it ,we can provide a professinal wireless smart home solution for you ,just need 15 mins ,can give a smart home for you. smart home system is using the fifth IOTs technology. The main functions of system 1.security alarm 2.fingerprint 3.remote video 4.appliances control 5.curtain control 6.sence control 7.timing control 8.save energy 9.music control 10.communication management 11.remote SOS 12.open the door remotely 13.cloud alarm message 14.cellphone alarm our smart home system using advanced wireless network communication technology and computer technology as well as through by many wireless communication ways to build the family wireless network in order to integerate with video,audio,alarm and appliances control under a wireless management platform to realize the smart control and alarm.
The Metal Detector
This utility app leverages your iPhone's magnetic sensor to detect nearby magnetic fields. It offers a simple interface with visual feedback and readings, providing a tool for exploring magnetic phenomena around you.
- Detects magnetic fields
- Uses iPhone's magnetic sensor
- Simple user interface
- Visual feedback with readings
- Supports iPhone XS Max
- Calibration guidance
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Uses iPhone's inbuilt magnetic sensor to detect the nearby magnetic fields. Features: * Simple UI to use * Provides visual feedback with readings * Supports iPhone XS Max Tip: * Initial calibration may be required by moving the iPhone in figure-8 like motion for 3 rounds * Use above steps if it is showing same reading after detecting a high magnetic field
Screenshots
Verdict
The clearest difference is update cadence: D+ at every 4 weeks against The Metal Detector's every 38 months. D+ also leads on iOS requirement (9.0 vs 15.6). The Metal Detector's advantage is rating (4.0 vs 3.7). On price, ratings volume, ads and in-app purchases 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.
The Metal Detector holds the better App Store score, 4.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 7 respectively.
D+ ships an update every 4 weeks, The Metal Detector every 38 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | D+ | The Metal Detector |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 4.0 (7 ratings) — better |
| Number of ratings | 3 | 7 — better |
| Update frequency | Every 4 weeks — better | Every 38 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 145 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | 英江 李 | Tejas Padliya |
Customer experience
D+
The Metal Detector
In-app purchases
D+
No in-app purchases
The Metal Detector
No in-app purchases
Questions
Is D+ free?
Is The Metal Detector free?
Which has better reviews, D+ or The Metal Detector?
Do D+ or The Metal Detector have ads?
Which is updated more often, D+ or The Metal Detector?
Other comparisons
