# Calculate Comfort vs 반딧불이 V2M

The clearest difference is in-app purchases: 반딧불이 V2M at none against Calculate Comfort's 1. 반딧불이 V2M also leads on ads (none vs shown) and iOS requirement (14.0 vs 16.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Calculate Comfort sells 1 one-off in-app purchase. 반딧불이 V2M asks for nothing beyond the download.

Calculate Comfort ships an update every 4 months, 반딧불이 V2M every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Calculate Comfort | 반딧불이 V2M |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (35 ratings)](https://appshunter.io/ios/app/calculate-comfort/id605648449/reviews)** | — |
| Number of ratings | **35** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 39 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [JUN KANAYAMA](https://appshunter.io/developer/605648452) | [(주)나래트렌드](https://appshunter.io/developer/1513500105) |

## What reviewers say

### Calculate Comfort

[App page](https://appshunter.io/ios/app/calculate-comfort/id605648449)

This app analyzes atmospheric conditions by calculating various air properties like relative humidity, dew point, and enthalpy. It provides visual indicators for comfort levels and allows for easy adjustment of input values using a dial. Advanced features include weather data fetching and unit conversions.

**Highlights:** Calculates RH, Dew Point, Wet-Bulb Temp, Enthalpy, and more, Visual comfort indicators with color and emoji, Adjustable atmospheric pressure input, Switchable between Discomfort Index (DI) and WBGT, Automatic weather data fetching, Unit conversion between SI and US units (Pro), Export calculation results as text (Pro)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $7.99 | one-time |


### 반딧불이 V2M

[App page](https://appshunter.io/ios/app/v2m/id1573673148)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calculate Comfort free?

Calculate Comfort is free to download, with in-app purchases available.

### Is 반딧불이 V2M free?

반딧불이 V2M is free to download, with no in-app purchases.

### Do Calculate Comfort or 반딧불이 V2M have ads?

Calculate Comfort shows ads; 반딧불이 V2M does not.

### Which is updated more often, Calculate Comfort or 반딧불이 V2M?

Calculate Comfort ships an update every 4 months, and 반딧불이 V2M every 2 months. Most recently, Calculate Comfort was updated on November 1, 2026 and 반딧불이 V2M on November 3, 2026.

---

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