AirCompare™ vs decibella 2

AirCompare™ reduces home energy consumption and saves you money by providing two smart tools, a ventilation controller and a thermostat controller. Both smart controllers can be used “manually” to give you advice on how to best adjust your ventilation and thermostat. AirCompare™ can also be configured to automatically control your HomeKit-enabled windows, fans and thermostats. The AirCompare™ ventilation controller calculates the energy content of your home’s interior air and compares it to the air outside. If you can get free heating or cooling by just opening your windows, AirCompare™ will make it happen! What if rain is coming? AirCompare™ checks your local weather for current and forecasted rain. You can decide how sensitive AirCompare will be to rain in the forecast. For instance, you might choose to leave your windows closed for the night if the chance of rain in the next 8 hours is 30% or more. The AirCompare™ thermostat controller uses your preferences, combined with an analysis of current conditions, to optimize the setting of your thermostat. AirCompare™ uses current electricity rates (where available) and your local weather forecast, along with your preferences, to calculate the ideal setting at any moment. The optimum setting balances your comfort against the expected cost of heating or cooling. For instance you might choose to tolerate a higher summer temperature when electricity rates are peaking, and enjoy a cooler temperature when electricity is less expensive late at night. You might turn off your A/C if you know a cold front is due soon. AirCompare™ simplifies your life by considering all the data and making these complex decisions for you.

Decibella 2: Sound Level Meter & Decibel Meter Explore the sounds around you with Decibella 2, a portable noise meter and sound analyzer for your phone or tablet. Measure everyday sound levels in decibels (dB), follow changes over time, and compare low, mid and high frequencies in one easy-to-use app. At home, in an office, library, café or on public transport, turn curiosity about your acoustic environment into clear visual information. REAL-TIME SOUND MEASUREMENT Tap the microphone button to start. Watch the animated meter, current dB value, average (AVG) and maximum (MAX). The average accounts for sound energy and measurement duration to summarize your session. TIME AND FREQUENCY GRAPHS Use dB/Time to follow sound-level changes. Switch to dB/Freq to explore 11 frequency bands labeled from 32 Hz to 20 kHz, including separate 15K and 20K bands. Live bars show the current spectrum, while gray markers show retained band maxima. The measurable range depends on your device's microphone. SOUND GUIDE Relate measured levels to familiar everyday sounds. Clear examples, readable text and a highlighted row help you understand the approximate meaning of a noise level. UP TO 100 MEASUREMENT RECORDS Review session duration, maximum and average dB in Records, with dates and times shown in your current language and regional format. Eligible sessions lasting at least one second are saved when measurement stops. Keep the latest 100 records; each new record beyond the limit automatically replaces the oldest. MICROPHONE CALIBRATION Adjust the dB offset from -20.0 to +20.0 in 0.1 dB steps. Fine-tune readings against a suitable reference meter. Permission and measurement-start errors are explained on the calibration screen. MADE FOR PHONES AND TABLETS Responsive cards, graphs, text and controls adapt to the screen. Choose a light or dark theme and use the app in English, Korean, Japanese, Simplified Chinese, Traditional Chinese, French or Spanish. A PLAYFUL VIEW OF SOUND Watch a small rocket respond to sound and travel toward the moon. It adds a visual touch to everyday sound exploration. ACCESS AND MEASUREMENT NOTES Basic measurement sessions are limited to 30 seconds. Earning a reward by watching a video ad unlocks longer measurements, Sound Guide and record saving/viewing for two hours. An internet connection and an available ad are required for this access. Measurement requires microphone permission and runs while the app is active; leaving the app or locking the screen stops it. Decibella 2 is for everyday reference and entertainment. Readings vary with the microphone, device and calibration. It does not replace certified professional or industrial sound-level equipment. Download Decibella 2 and explore everyday sound with a pocket-sized decibel meter. Made with love in Canada.