Sharp Air vs Decibel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sharp Air
Control your Wi-Fi enabled Sharp air purifier and air conditioner remotely. Monitor air quality, track energy consumption, and manage schedules from your mobile device. Receive alerts for filter replacement and optimize performance with smart features.
- Remote power ON/OFF
- Set weekly schedules
- Monitor air quality in real-time
- Track electric consumption
- Filter life alerts
- Auto Presence ON/OFF
- Sharp Cloud optimization
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SHARP Air app is compatible for the following models: FXJ80UW, KCP70UW, KCP110UW, KCP70CW, KCP110CW, AY-XPC12ZU, AY-XPC15ZU, AY-XPC18ZU, AY-XPC24ZU, AY-XP12ZHU, AY-XP18ZHU, AY-XP12ZU1, AY-XP15ZU1, AY-XP18ZU1, AY-XP24ZU1, AY-XP12ZHU1, AY-XP18ZHU1, AY-XPC9BU, AY-XPC12BU, AY-XPC18BU, AY-XP12CPU, AY-XPC9CU, AY-XPC12CU, AY-XPC12CQ, AY-XP15CU, AY-XPC18CU, AY-XP24CU, AY-XP12DWU. ********************************************** With the Sharp Air Mobile Companion App, you can take advantage of the Smart Features of your Wi-Fi enabled, Air Purifier and/or Air Conditioner by Sharp: • Control several features of your compatible air purifier and/or air conditioner with your mobile device from anywhere you have a data connection. You can power your air purifier and/or air conditioner on or off, set a weekly schedule, and more! • Monitor electric consumption and feel the energy saved with Air Conditioner. • Monitor indoor air quality in real-time to stay in control, even if you're not home. • See your remaining filter-life and receive alerts when it's time to replace the filters. • Enable the Auto Presence ON/OFF feature which will automatically turn your air purifier and air conditioner ON or OFF depending on your current location. • You can enable and disable the optional, "Sharp Cloud" feature. When enabled, your usage history will be used to adjust the Sensor Sensitivity settings of "Auto" Mode over time in order to optimize your Air Purifier's performance. A free, Sharp Cloud account is required for setup. Compatible Models: FXJ80UW, KCP70UW, KCP110UW, KCP70CW, KCP110CW, AY-XPC12ZU, AY-XPC15ZU, AY-XPC18ZU, AY-XPC24ZU, AY-XP12ZHU, AY-XP18ZHU, AY-XP12ZU1, AY-XP15ZU1, AY-XP18ZU1, AY-XP24ZU1, AY-XP12ZHU1, AY-XP18ZHU1, AY-XPC9BU, AY-XPC12BU, AY-XPC18BU, AY-XP12CPU, AY-XPC9CU, AY-XPC12CU, AY-XPC12CQ, AY-XP15CU, AY-XPC18CU, AY-XP24CU, AY-XP12DWU. Main features Remote control - Power ON/OFF - Switch between operation modes and air flow - Set the weekly scheduler/timer - Auto Presence ON/OFF for automatic on/off depending on location Room information - Current operation mode, temperature/humidity/dust/odor information - Replacement status for Filters and Plasmacluster Ion Generating Unit - Guideline for scheduled filter cleaning (Air Conditioner Only) Receive notifications - When the air purifier and/or air conditioner has been turned ON/OFF, or when operated by other users like family members - Error/maintenance/updated information Note: - Please verify that your appliance is working properly before using the remote control features away from home. - Please check the operation mode on your application after using a remote control function from outside of your home. - Up to 10 mobile devices can be paired to each appliance. - Up to 30 appliances can be paired to each mobile device.
Decibel
This app provides precise sound level measurements and audio analysis using professional weighting filters and real-time FFT spectrum analysis. It functions as a dosimeter for workplace safety and allows for easy sharing of dB data overlays on photos.
- Professional Frequency Weighting (ITU-R 468, A/B/C/Z)
- Real-Time FFT Spectrum Analysis
- NIOSH & OSHA Standard Dosimeter
- High-Precision Calibration
- InstaDecibel Image Overlay
- Live Activities Support
- History Management & Export (PDF/M4A)
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Measure sound levels, understand noise exposure, and save clear records with Decibel: dB Sound Meter. See real-time readings, follow changes on a live graph, and review average/Leq, minimum, maximum, and peak values during each session. Use the app for everyday sound checks at home, work, events, studios, and outdoor environments. REAL-TIME SOUND MEASUREMENT • Current sound level in a clear digital and analog display • Live waveform graph • Average/Leq, minimum, maximum, and peak values • Fast response mode • Calibration offset for supported microphones • Reference labels that make sound levels easier to understand NOISE EXPOSURE • Estimated daily noise dose • Time-weighted average (TWA) • Projected dose and exposure details • OSHA-based reference view • Exposure-time guidance for different sound levels RECORD AND DOCUMENT • Save measurement sessions • Add names and notes • Review detailed session data • Play back saved recordings • Add live dB overlays to photos and videos • Share saved results for personal documentation USE DECIBEL FOR • Workplace noise awareness • Concerts, rehearsals, and event checks • Home appliance and room comparisons • Neighborhood and traffic noise records • Baby rooms, study spaces, and quiet environments PRO FEATURES Upgrade to Pro to unlock: • Unlimited saved history • PDF report export • Advanced noise analysis tools • Extended calibration controls • Ad-free measurement IMPORTANT MEASUREMENT INFORMATION Sound level readings depend on the device model, microphone, case, environment, calibration, and connected accessories. Decibel is designed for awareness, comparison, and personal documentation. It is not a certified sound level meter or noise dosimeter and is not a replacement for professional equipment. Do not use the app as the sole basis for workplace compliance, legal, medical, or safety decisions. Note If you subscribed through Apple, payment will be charged to your App Store account at confirmation of purchase. Subscriptions automatically renew unless auto-renewal is turned off at least 24 hours before the end of the current subscription period. Your account will be charged for renewal at the price of your chosen plan within 24 hours prior to the end of the current subscription period. You can manage your subscription and auto-renewal in your Account Settings after purchase. Privacy Policy Your data stays private—we don't collect personal info unnecessary for measurements. Microphone access is used solely for decibel tester functions, with no background tracking. Privacy Policy: https://asmyapp.com/decibelmeter/privacy Terms of Use: https://asmyapp.com/decibelmeter/terms Questions or feedback: support@mobiunityhk.com Download Decibel: dB Sound Meter to measure, compare, and document everyday sound environments. dec
Screenshots
Verdict
The clearest difference is rating: Decibel at 3.0 against Sharp Air's 1.9. Decibel also leads on update cadence (monthly vs every 6 months). Sharp Air's advantage is in-app purchases (none vs 5) and ratings volume (23 vs 3). On price, ads, 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. Decibel sells 2 in-app purchases, starting at $9.99 per 7 days. Sharp Air asks for nothing beyond the download.
Decibel holds the better App Store score, 3.0 against 1.9. That said, the two scores are not equally well evidenced: Sharp Air has 23 ratings behind it against 3, so its average is the more settled of the two.
Sharp Air ships an update every 6 months, Decibel monthly. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.
| Parameter | Sharp Air | Decibel |
|---|---|---|
| Price | Free | Free |
| Rating | 1.9 (23 ratings) | 3.0 (3 ratings) — better |
| Positive reviews | 9.7% of reviews | — |
| Number of ratings | 23 — better | 3 |
| Update frequency | Every 6 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 62 MB | 194 MB |
| Age rating | 17+ | 4+ |
| Developer | Sharp Corporation | 芳 王 |
Customer experience
Sharp Air
Decibel
In-app purchases
Sharp Air
No in-app purchases
Decibel
- Weekly VIP$9.997 Days
- Weekly VIP3 Days trial4 variants$9.997 Days









