Smart Diffuser vs Scan QR Code & Barcode
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart Diffuser
Control your aroma diffuser remotely via Bluetooth. Adjust power, lighting, intensity, and set custom schedules. Reset your device directly from your phone.
- Bluetooth connectivity
- Power control
- Atmosphere light adjustment
- Intensity settings
- Schedule setup
- Device reset
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The app uses Bluetooth to connect and control a specific aroma diffuser. Users can use this app as a remote control to perform operations such as switching power, switching atmosphere light, switching intensity, setting schedule, and reset of the aroma diffuser.
Scan QR Code & Barcode
Quickly scan QR codes and barcodes to access information. Generate and share your own codes, and keep an archive of all scanned and created codes. Supports auto-scan functionality for efficient use.
- QR Code Scanner
- Create QR Codes
- Barcode Scanner
- Share QR Codes
- Auto Scan
- Code Archive
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Use our app to scan any QR code and get the information you need fast! Create and share QR Codes for yourself and friends! Archive and save all QR Codes you have ever scanned or created. FEATURES - QR Code Scanner - Create your own QR Codes - Barcode Scanner (Scan coupons & Food labels) - Share QR Codes - Auto Scan. SUBSCRIPTION TERMS You can subscribe for unlimited access to all features within Phone Cleaner. • Payment will be charged to iTunes Account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase By using Phone Cleaner, you agree to our Privacy Policy and Terms of Use: Privacy Policy: https://docs.qq.com/doc/DV2tjald2VlRyUmV1 Terms of Use: https://docs.qq.com/doc/DV2lvZnJzWWprdG5B
Screenshots
Verdict
The clearest difference is rating: Smart Diffuser at 5.0 against Scan QR Code & Barcode's 4.2. Smart Diffuser also leads on in-app purchases (none vs 2) and ads (none vs shown). Scan QR Code & Barcode's advantage is update cadence (every 3 weeks vs every 5 months) and ratings volume (36 vs 3). On price, device support and iOS requirement 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. Scan QR Code & Barcode sells 2 in-app purchases, starting at $19.99 per 7 days. Smart Diffuser asks for nothing beyond the download.
Smart Diffuser holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Scan QR Code & Barcode has 36 ratings behind it against 3, so its average is the more settled of the two.
Smart Diffuser ships an update every 5 months, Scan QR Code & Barcode every 3 weeks. Both last shipped on September 18, 2026.
| Parameter | Smart Diffuser | Scan QR Code & Barcode |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.2 (36 ratings) |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | 3 | 36 — better |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 3 MB | 16 MB |
| Age rating | 17+ | 4+ |
| Developer | Shenzhen Shengmu Technology Co., Ltd. | 艳 王 |
Customer experience
Smart Diffuser
Scan QR Code & Barcode
In-app purchases
Smart Diffuser
No in-app purchases
Scan QR Code & Barcode
- week3 Days trial$19.997 Days
- month3 Days trial$29.991 Month
Questions
Is Smart Diffuser free?
Is Scan QR Code & Barcode free?
Which has better reviews, Smart Diffuser or Scan QR Code & Barcode?
Do Smart Diffuser or Scan QR Code & Barcode have ads?
Which is updated more often, Smart Diffuser or Scan QR Code & Barcode?
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