Calculate Comfort vs Lockin

Calculate Comfort computes the psychrometric properties of moist air — dew point, wet bulb temperature, absolute humidity, enthalpy and more — from temperature and humidity. Turn a dial instead of reading a psychrometric chart. Built for HVAC design, instrumentation, building maintenance and condensation control. Units: the Pro version switches the entire readout between IP and SI in one tap, °F⇄°C included. Useful when your measurements are in IP but the equipment data is in SI. If you work only in Fahrenheit, our companion app Psychrometer °F opens in Fahrenheit by default. ■ Who it's for ・HVAC engineers and contractors who need moist-air properties on site ・Technicians converting psychrometer readings to relative humidity ・Anyone assessing condensation or mold risk from dew point ・Students learning to read a psychrometric chart ■ What it calculates Enter temperature plus relative humidity, dew point or wet bulb temperature: ・Relative humidity (%RH) ・Dew point (°C DP) / frost point (°C FP), switchable below 0 °C ・Wet-bulb temperature (°C WB) ・Mixing ratio, gravimetric absolute humidity (g/kg) ・Absolute humidity, volumetric (g/m³) ・Enthalpy (kJ/kg), for load calculations ・Specific volume (m³/kg) ・Vapor pressure and saturated vapor pressure (hPa) ・Discomfort index (DI) ・Estimated WBGT heat index (indoor, no solar load) ・Comfort indicator (18–28 °C, 40–70 % RH) ■ Main features ◯ Three input modes: relative humidity, dew point or wet bulb temperature. Tap the % icon to switch; keyboard entry also available. ◯ Works in place of a psychrometric chart. Dew point mode traces constant absolute humidity — sensible heating and cooling. Wet bulb mode traces the constant wet-bulb line — humidification and dehumidification. ◯ Three psychrometer types: aspirated (Assmann), wall-mounted (August) and sling. Below freezing you can set whether the wet bulb is iced; below −10 °C this applies automatically, except for the sling type. ◯ Pressure-corrected calculation: standard pressure (1013.25 hPa), built-in barometer, weather data or manual entry (800–1200 hPa). ◯ Automatic weather retrieval from your location, with a recommended indoor temperature (ASHRAE Standard 55). Choose OpenWeatherMap or Apple Weather. ◯ Works offline. A connection and location permission are needed only to fetch outdoor weather. ◯ Comfort indicator in color and emoji. [Common gestures] ・Pressure and index readouts: tap to open settings ・Outdoor air (weather icon), dew point input, wet bulb input and reset buttons: touch and hold to open settings ■ Pro version (one-time in-app purchase) ・Removes all ads ・IP ⇄ SI unit switching in one tap: °C⇄°F, g/kg⇄gr/lb, g/m³⇄gr/ft³, kJ/kg⇄BTU/lb, m³/kg⇄ft³/lb, hPa⇄inHg ・Text export of calculation results ・Extended pressure input: 23–36 inHg ・Selectable saturation vapor pressure formula: Sonntag (WMO), Hyland-Wexler (ASHRAE), Wagner-Pruß (IAPWS-95), Goff-Gratch, Magnus-Tetens ■ Supported devices iPhone with iOS 16.0 or later. Also runs on Apple M1 Mac (macOS 13.0 or later) and visionOS 1.0. Home Screen: ComfortCalc. App header: Psychrometer°Calc. ■ What it does not do ・Does not measure temperature or humidity with the device; outdoor values come from weather data ・Does not perform measured WBGT with a globe thermometer ・Does not draw a psychrometric chart ■ Calculation basis ・Saturated vapor pressure: Sonntag; other formulas in Pro ・Vapor pressure: JIS Z 8806 ・Relative humidity and dew point: JIS and WMO; denominator over supercooled water ・Enthalpy: ASHRAE definition ・Recommended indoor temperature: ASHRAE Standard 55 ■ Notes Extreme input values increase error and may produce an error state. Rounding may shift the last digit when switching modes. Correctness of results is not guaranteed and no liability is accepted for damages arising from use. Documentation, FAQ and calculation specs: https://www7b.biglobe.ne.jp/~kanayama/PsychrometerCalc/

Lockin turns focus into a game. Pick a category - work, study, sport, reading - choose the apps that distract you, and lock your phone. For as long as the session runs they are out of reach. The timer runs, the XP climbs. Leaving early is always possible, but you have to earn it: three challenges to pass. Enough to make you think twice, never enough to trap you. WHAT YOU CONTROL • The blocked apps, picked per session or kept as presets • The length, open-ended or set in advance • Routines: choose the apps, the days and the hours, and the block starts on its own • A one-line intention, readable on the lock screen WHAT YOU EARN • XP for every session you hold, and ranks that climb all the way to Legend • Daily tasks you write yourself, ticked off for a little extra XP • Streaks to keep alive, day after day WHAT YOU SEE • Today's screen time on the home screen, with the five apps behind it • Your weekly goal against what actually happened, and what the block held back • The categories you have let slide, restarted in one tap • Widgets for your week, your streak, your rank and your next routine WITH OTHERS • Add friends by code and compare your stats • A Ranking tab: your friends, the podium, your place • Share your own code to bring friends in Lockin speaks English and French, and the language can be changed inside the app. SUBSCRIPTION Lockin is a subscription: $59.99 per year with a 3-day free trial, $12.99 per month, or $7.99 per week. Prices may vary by region. A subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Manage or cancel it in your Apple Account settings. Terms of Use: https://yoyz-build.github.io/lockin-legal/conditions.html Privacy Policy: https://yoyz-build.github.io/lockin-legal/confidentialite.html Lockin relies on Apple's Screen Time to block apps. Everything happens on your phone: the list of apps you block never leaves the device and is never sent to us. The screen time panel is drawn by an Apple extension - those numbers stay on your iPhone too.