b vs ONE Home+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
b
Control and monitor your smart air purifiers remotely. Manage power, set timers, and adjust fan speed for optimal indoor air quality. Requires compatible device connection.
- Connect/disconnect mobile device
- Switch air purifier on/off
- Control turbo power
- Set automatic timer
- Remote monitoring
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RHT Industries Limited is a company that specializes in air purification technology. It invented the NCCO Air Purification Technology with the Member of HKUST Entrepreneurship Program and holds the patent. Over the years, RHT Industries Limited has formulated IAQ (Indoor Air Quality) together with Hong Kong Environmental Protection Department and still in use today, has offered a professional and efficient advisory service of air purification and air treatment for Hong Kong Hospital Authority, Hong Kong Housing Authority, Hong Kong International Airport, DoubleTree by Hilton, HSBC, Philips, Oregon Scientific, Poly Group and other organizations and firms. The b-MOLA application connects BM50, BM100, BM150 and BM300 to your mobile device. It manages and monitors features of the devices listed above. Use the b-MOLA application to set ip and manage the following. Features: - Connect to and disconnect from a mobile device - Switch on and off the air purifier - Control the turbo power of the air purifier - Set a timer for the air purifier to switch on and off automatically * Settings and features provided by the b-MOLA application are only available when BM50, BM100, BM150, BM300 is/are connected to your mobile device. Features will not work properly without a proper connection between BM50/ BM100/ BM150/ BM300 and your mobile device. * This application is only for BM50, BM100, BM150 and BM300. * For any questions, please contact us via the web page below. (https://www.bmola.hk/faq)
ONE Home+
This smart home platform allows users to easily connect, control, and interact with various smart devices in their home. Explore a wealth of smart applications and home life services to enhance your living experience.
- Connect and control smart devices
- Manage household smart devices
- Explore smart applications
- Access home life services
- Enhance smart living experience
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The ONE Home+ app is a meticulously designed smart home device control platform by China Mobile Hong Kong, dedicated to providing convenient smart device management solutions for household users. Through the ONE Home+ app, you can easily connect, control, and interact with various smart devices in your home. Additionally, we offer a wealth of smart applications and home life services for you to explore and experience. The ONE Home+ app is committed to building a better and higher-quality smart life. We sincerely invite you to experience the new smart life brought by the ONE Home+ app. We look forward to your participation, so we can together enjoy the convenience and fun brought by smart living.
Screenshots
Verdict
The clearest difference is update cadence: ONE Home+ at every 5 months against b's every 16 months. b's advantage is monetization model (free vs ad-supported) and iOS requirement (10.0 vs 13). On price, ads, in-app purchases and device support 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.
b ships an update every 16 months, ONE Home+ every 5 months. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.
| Parameter | b | ONE Home+ |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 16 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 10.0 — better | 13 |
| Further details — not scored | ||
| Size | 53 MB | 350 MB |
| Age rating | 4+ | 4+ |
| Developer | RHT INDUSTRIES LIMITED | China Mobile Hong Kong Company Limited |
Customer experience
b
ONE Home+
In-app purchases
b
No in-app purchases
ONE Home+
No in-app purchases









