Comparison

Humidity Window vs Drying Day

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

Head to head
About

Humidity Window

This app acts as a digital hygrometer, tracking outdoor humidity and providing personalized advice on when to ventilate your home. It helps prevent mold growth and improve indoor air quality by suggesting optimal times to open windows. Monitor key weather metrics and receive instant updates via a home widget.

Highlights
  • Outdoor humidity tracking (relative & absolute)
  • Dew point comfort visualization
  • Personalized ventilation advice
  • Detailed weather metrics (wind, temp, pressure)
  • Home screen widget for instant updates
  • Lightweight and privacy-focused design
Features
Read full description

Humidity Window is a free digital hygrometer that helps you track outdoor humidity and find the best time to ventilate your home. By lowering your indoor humidity at the right moments, you can prevent mold growth and improve your overall indoor air quality. Whether you’re concerned about dampness, stuffy air, or window condensation, this app gives you the insights you need to keep your living space comfortable and healthy. Features: - Humidity Metrics (Relative & Absolute): See the outdoor relative humidity percentage and calculate the absolute humidity for your home, so you know how much moisture is in the air. - Dew Point Comfort Bar: View the current dew point and see exactly where it falls on a visual comfort bar, from 'Pleasant/Dry' to 'Miserable.' - Ventilation Advice: Get personalized tips on when to open your windows. The app suggests optimal times for ventilation to help you reduce indoor humidity and avoid mold risk. - Detailed Weather: Track more than just moisture. See the current wind speed, wind direction, "feels like" temperature, and barometric pressure (including rising or falling trends). - Home Widget: Add the humidity widget to your Home Screen for instant updates. Monitor humidity and ventilation tips at a glance without opening the app. - Lightweight & Private: This app is under 2 MB and does not collect any personal data. It’s fast, privacy-friendly, and ad-free, so you can use it anytime and anywhere. - Air Quality Integration - HomeKit support With Humidity Window, you no longer have to guess when it’s safe to air out your rooms – you’ll know. Protect your home from mold! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Drying Day

Features
Read full description

Some days the clothesline does a full load in two hours. Some days everything hangs damp until dark, and some days the rain gets to your laundry before you do. Drying Day answers the only laundry question that matters, before you press start on the washer: is it worth hanging outside today? A verdict, not a weather chart No radar to squint at, no humidity graphs to interpret. One clear answer in plain words — great drying day, good day to line-dry, drying will be slow, risky with a chance of rain, or better dry indoors — with the reason in one warm sentence underneath. What you get • An estimated drying window for today, with suggested times to hang out and bring in: "9 am – 3:30 pm." • How fast the line will work — roughly when a full load should be dry. • A suggested bring-in time, and why: forecast rain, or dusk. • The next three days as laundry advice, with the best laundry day tagged — so "do a load today or Saturday?" takes one glance. • Quiet, useful alerts (all optional): a heads-up the evening before a good drying day, a nudge when the window opens, and a reminder to bring the laundry in before forecast rain. • A "play it safe with rain" switch for people who'd rather rewash nothing, ever. • Wind in mph, humidity as a percentage, times that follow your clock setting. • A last-checked note when you're offline, so you always know how fresh the advice is. Honest about forecasts A forecast is a guess, and Drying Day says so. It hedges where hedging is honest, tells you the main risk out loud, and leaves the final call where it belongs — with the sky over your own clothesline. Built for people who line-dry Whether it's a backyard clothesline, a retractable line on the porch, a rack on the balcony, or a drying rack by the window on the days the sky says no — if you hang laundry to dry, this is for you. Made in Australia, where a good drying day is a genuine household event, and it works anywhere in the world there's weather and wet laundry. Quietly respectful No accounts, no tracking, no laundry log. Your location is used to fetch the forecast and show your area’s name, and we run no servers of our own — the privacy policy explains the rest, including the single ad. Free with a single unobtrusive banner; one small one-time purchase removes it forever. No subscriptions, ever. Weather data by WeatherAPI.com. Drying Day is an informational tool — it reads forecasts, it doesn't control clouds.

Screenshots

Humidity Window4 screens
Drying Day4 screens

Verdict

The call

The clearest difference is ads: Humidity Window at none against Drying Day's shown. Drying Day's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases and device support 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. Humidity Window sells 3 in-app purchases, starting at $0.99 per year and Drying Day sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Humidity Window ships an update every 2 weeks, Drying Day fortnightly. The most recent releases landed on October 23, 2026 and October 12, 2026 respectively.

Scorecard2 real differences · 8 level
Humidity Window versus Drying Day: the parameters behind the verdict, then further details
ParameterHumidity WindowDrying Day
PriceFreeFree
Rating4.9 (17 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings17 — better—
Update frequencyEvery 2 weeks — betterFortnightly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size83 MB26 MB
Age rating4+4+
DeveloperTiago MendesI OSTAPENKO & Y OSTAPENKO

In-app purchases

3 purchases

Humidity Window

Subscriptions3
  • Drop in the Bucket$0.991 Year
  • Splash of Support$2.991 Year
  • Monsoon of Love$6.991 Year
1 purchases

Drying Day

One-time1
  • Remove Ads$1.99

Questions

Is Humidity Window free?
Humidity Window is free to download, with in-app purchases available.
Is Drying Day free?
Drying Day is free to download, with in-app purchases available.
Do Humidity Window or Drying Day have ads?
Drying Day shows ads; Humidity Window does not.
Which is updated more often, Humidity Window or Drying Day?
Humidity Window ships an update every 2 weeks, and Drying Day fortnightly. Most recently, Humidity Window was updated on October 23, 2026 and Drying Day on October 12, 2026.

Other comparisons