# HumidCalc vs Ventify

The clearest difference is price: HumidCalc at Free against Ventify's $0.99. HumidCalc also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (15.6 vs 18.6). Ventify's advantage is ads (none vs shown). On review sentiment, in-app purchases and device support there is nothing between them.

HumidCalc is free to download; Ventify costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HumidCalc ships an update every 2 weeks, Ventify every 2 months. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | HumidCalc | Ventify |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/humidcalc/id1135328698/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | **Ad-supported** | Paid |
| Size | 11 MB | 1 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [yoshihito sakagami](https://appshunter.io/developer/1112518506) | [Johannes Bauer](https://appshunter.io/developer/1517004006) |

## What reviewers say

### HumidCalc

[App page](https://appshunter.io/ios/app/humidcalc/id1135328698)

This app calculates various humidity and air property indicators using weather data. It's suitable for general users, engineers, and agricultural applications, offering precise calculations for dew point, relative humidity, and heat stress indices.

**Highlights:** Humidity and air property calculations, Discomfort Index and WBGT calculation, Volumetric Absolute Humidity for influenza prevention, Humidity Deficit (HD) for agriculture, Supports 11 indicators across 15 calculation items, Unit conversion (Celsius/Fahrenheit, SI/Imperial), High-precision calculation engine

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Ventify

[App page](https://appshunter.io/ios/app/ventify/id6745443594)

This app analyzes indoor and outdoor conditions to advise on optimal ventilation for humidity control. It converts relative humidity to absolute values, providing clear recommendations on whether airing out a room is beneficial. Supports HomeKit and automatic weather data retrieval.

**Highlights:** Absolute humidity calculation, Ventilation recommendations, HomeKit integration, Automatic weather data, Celsius and Fahrenheit support, Sensor integration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is HumidCalc free?

HumidCalc is free to download, with no in-app purchases.

### Is Ventify free?

Ventify costs $0.99, with no in-app purchases.

### Do HumidCalc or Ventify have ads?

HumidCalc shows ads; Ventify does not.

### Which is updated more often, HumidCalc or Ventify?

HumidCalc ships an update every 2 weeks, and Ventify every 2 months. Most recently, HumidCalc was updated on November 2, 2026 and Ventify on November 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*