Comparison

Dew Point & Humidity Calc vs Open/Shut

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Dew Point & Humidity Calc

Features
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Dew Point & Humidity Calc is the ultimate tool to find the exact temperature at which the water vapor of atmospheric air condenses into liquid water, reaching its coolest point called saturation. Using this premium calculator, you can accurately analyze air moisture, calculate dew points, and determine relative humidity instantly. Perfect for HVAC professionals, meteorologists, engineers, outdoors enthusiasts, and homeowners tracking indoor climate comfort, this app provides accurate calculations based on standard thermodynamic and psychrometric formulas. Our app offers two advanced calculators tailored to your needs: 1. DEW POINT CALCULATOR Calculate the exact dew point temperature using the Air Temperature and Relative Humidity (%). Understand when moisture will convert to liquid water and condensation will occur. 2. PSYCHROMETRIC CALCULATOR A powerful tool to calculate either Relative Humidity (RH) or Dew Point. Input the Dry Bulb temperature plus either the Wet Bulb temperature or the Dew Point temperature to instantly get full psychrometric details, including relative humidity and remaining wet/dry bulb values. TEMPERATURE UNIT CONVERTER We support Celsius (°C), Fahrenheit (°F), and Kelvin (K). The built-in unit converter allows you to seamlessly convert values between these temperature scales with a single tap. KEY FEATURES: - High-precision thermodynamic calculations (Magnus-Tetens & psychrometric formulas). - Clean, premium iOS-style interface built with an 8pt layout grid. - Full support for Light and Dark Modes, matching your system settings. - Universal unit conversions for all calculators. - Fully localized in 18 languages to support users worldwide. - No ads, clean typography, and fast computations. Download Dew Point & Humidity Calc today to get professional-grade climate and moisture tracking in the palm of your hand! Privacy Policy: https://doc-hosting.flycricket.io/dew-point-humidity-calc-privacy-policy/70037d1a-3c76-414c-aadc-a451e49be94c/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Open/Shut

Features
Read full description

Open or shut? During a heatwave, everyone answers this question with instinct, and instinct is wrong. We open the windows when the weather feels nice, while the air outside is hotter than inside. We let in air that feels dry, while it actually carries more water. Open/Shut ends the guessing. ONE GLANCE, ONE ANSWER A full-screen verdict, updated in real time: OPEN or SHUT, with the reason in one sentence. No charts to interpret, no thresholds to configure. PHYSICS THAT IS ACTUALLY RIGHT Relative humidity is misleading: hot afternoon air can show a low percentage while holding more water than your living room. Open/Shut compares absolute humidity, the grams of water per cubic metre, indoors and out. Airing never trades a cool room for a damp one. IT KNOWS YOUR HOME Describe your windows once: "garden side", "bedroom skylight". When the verdict is OPEN, the app crosses the wind direction with your façades and tells you which openings to use for cross-ventilation, in your own words. It also learns your building's thermal inertia and estimates the indoor temperature between your readings. IT PLANS AHEAD An hourly timeline shows the next favorable window over the coming hours, and a notification arrives at the exact moment conditions flip. Open at the right time, not when you happen to think about it. SUMMER AND WINTER In summer, flush out the heat as soon as the evening air turns cooler. In winter, air strategically to fight condensation and mould without throwing your heating out the window. PRIVATE BY DESIGN No account, no backend, no tracking. Your location is only used to fetch your local forecast. Free, with no subscription. Open/Shut. An open-and-shut case.

Screenshots

Dew Point & Humidity Calc4 screens
Open/Shut4 screens

Verdict

The call

The clearest difference is in-app purchases: Open/Shut at none against Dew Point & Humidity Calc's 2. Open/Shut also leads on update cadence (daily vs every 5 weeks). Dew Point & Humidity Calc's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Dew Point & Humidity Calc sells 2 in-app purchases, starting at $2.99 per month. Open/Shut asks for nothing beyond the download.

UpkeepUpdate frequency

Dew Point & Humidity Calc ships an update every 5 weeks, Open/Shut daily. The most recent releases landed on November 5, 2026 and October 29, 2026 respectively.

Scorecard4 real differences · 2 level
Dew Point & Humidity Calc versus Open/Shut: the parameters behind the verdict, then further details
ParameterDew Point & Humidity CalcOpen/Shut
PriceFreeFree
Update frequencyEvery 5 weeksDaily — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better16.4
Further details — not scored
Size35 MB65 MB
Age rating4+4+
DeveloperTirinBerenger.dev

In-app purchases

2 purchases

Dew Point & Humidity Calc

Subscriptions1
  • Dew Monthly Premium$2.991 Month
One-time1
  • Dew Lifetime Premium$4.99
None

Open/Shut

No in-app purchases

Questions

Is Dew Point & Humidity Calc free?
Dew Point & Humidity Calc is free to download, with in-app purchases available.
Is Open/Shut free?
Open/Shut is free to download, with no in-app purchases.
Do Dew Point & Humidity Calc or Open/Shut have ads?
Neither Dew Point & Humidity Calc nor Open/Shut shows ads.
Which is updated more often, Dew Point & Humidity Calc or Open/Shut?
Dew Point & Humidity Calc ships an update every 5 weeks, and Open/Shut daily. Most recently, Dew Point & Humidity Calc was updated on November 5, 2026 and Open/Shut on October 29, 2026.

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