Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.
Not yet tested.
The store currently lists version 3.7, updated 2026-08-11.
Store screenshots supplied by the developer.
Psychrometer °F is a psychrometric calculator for evaluating thermal comfort and moist-air conditions using U.S. customary units.
Adjust temperature and humidity easily with the on-screen dials. Temperatures are color-coded for quick reference, and a “Good” indicator appears when conditions are between 68–82°F and 30–60% relative humidity.
Choose from the following input combinations:
• Dry-bulb temperature and relative humidity
• Dry-bulb temperature and dew-point or frost-point temperature
• Dry-bulb temperature and wet-bulb temperature
The app displays or calculates:
• Dry-Bulb Temperature (°F)
• Wet-Bulb Temperature (°F)
• Dew Point / Frost Point (°F)
• Relative Humidity (%RH)
• Humidity Ratio / Mixing Ratio (gr/lb)
• Absolute Humidity (gr/ft³)
• Enthalpy (Btu/lb)
• Specific Volume (ft³/lb)
• Atmospheric Pressure (inHg)
• Vapor Pressure (inHg)
• Saturation Vapor Pressure (inHg)
C…
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
No review analysis published for this app.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
Not yet tested. No analysis has been run for this app, so there is no version or date to report.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
Added a one-time purchase option to remove ads. Outdoor weather data is now provided by Apple Weather. Improved Heat Index and WBGT displays. Refined the Settings screen and English wording. Improved permission handling, layout, and overall stability.
Appworthy
psychrometer-fWhat the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.
Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.