Smart Diffuser vs BT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
BT
This utility app allows users to customize working periods for a machine. It supports setting different working days and times for various requests and locations, offering flexibility in machine operation.
- Customizable working modes
- Set 5 groups of working periods
- Define different working days
- Schedule specific working times
- Adaptable to various requests and locations
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[Free to change the working Modes] The machine can be set for 5 groups different working periods , it can set different working days,working times according to different requests and suit for different places.
Screenshots
Verdict
The clearest difference is rating: Smart Diffuser at 2.7 against BT's 1.6. Smart Diffuser also leads on update cadence (every 6 weeks vs every 3 months). BT's advantage is review sentiment (50% vs 25%) and iOS requirement (9.0 vs 12.0). 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.
Smart Diffuser holds the better App Store score, 2.7 against 1.6. Both are backed by a comparable volume of ratings — 6 and 8 respectively. Written reviews complicate that: 25% of Smart Diffuser's written reviews are positive against 50% of BT's, so the app with the better star average is not the one people write more warmly about.
Smart Diffuser ships an update every 6 weeks, BT every 3 months. The most recent releases landed on July 7, 2026 and June 11, 2026 respectively.
| Parameter | Smart Diffuser | BT |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (6 ratings) — better | 1.6 (8 ratings) |
| Positive reviews | 25.0% of reviews | 50.0% of reviews — better |
| Number of ratings | 6 | 8 — better |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 42 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 秦庚 蒋 | 俊 谢 |
Customer experience
Smart Diffuser
BT
In-app purchases
Smart Diffuser
No in-app purchases
BT
No in-app purchases
