D+ vs Smart Diffuser
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.
Smart Diffuser
Control your smart scent machine remotely via Wi-Fi. Adjust scent intensity, monitor oil levels, and manage multiple devices. Authorize other users and group machines for business use.
- Remote Wi-Fi control
- Scent intensity adjustment
- Oil level monitoring
- User authorization
- Device grouping
- Employee account management
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Smart scent machine app is to control the scent machine remotely Main function as below; 1. SMARTCONFIG: To match your scent machine to your wifi and control by the smartphone. 2. Do settings and ambient scent intensity control remotely. 3. Oil Monitor: Can monitor the oil level of the scent machine. 4. Authorization: To authorize the person that need to do setting. 5. Group function: Can group your customer's machine. 6.Employee account function:Resolve equipment ownership issues between agents and employees . 7.Update the prompt function:APP has a new version that will prompt the update.
Screenshots
Verdict
The clearest difference is rating: D+ at 3.7 against Smart Diffuser's 2.7. D+ also leads on device support (4 vs 2) and iOS requirement (9.0 vs 12.0). On price, ratings volume, update cadence and ads 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.
D+ holds the better App Store score, 3.7 against 2.7. Both are backed by a comparable volume of ratings — 3 and 6 respectively.
D+ ships an update every 4 weeks, Smart Diffuser every 6 weeks. The most recent releases landed on June 1, 2026 and July 7, 2026 respectively.
| Parameter | D+ | Smart Diffuser |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | 2.7 (6 ratings) |
| Positive reviews | — | 25.0% of reviews |
| Number of ratings | 3 | 6 — better |
| Update frequency | Every 4 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 145 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | 英江 李 | 秦庚 蒋 |
Customer experience
D+
Smart Diffuser
In-app purchases
D+
No in-app purchases
Smart Diffuser
No in-app purchases









