# Dew Point Humidity Calculator vs Ringder Smart

The clearest difference is in-app purchases: Ringder Smart at none against Dew Point Humidity Calculator's 1. Ringder Smart also leads on ads (none vs shown) and iOS requirement (14.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Dew Point Humidity Calculator sells 1 one-off in-app purchase. Ringder Smart asks for nothing beyond the download.

Dew Point Humidity Calculator ships an update every 12 months, Ringder Smart every 19 months. Both last shipped on September 10, 2026.

## The numbers

| Metric | Dew Point Humidity Calculator | Ringder Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (81 ratings)](https://appshunter.io/ios/app/dew-point-humidity-calculator/id6480256120/reviews)** | — |
| Number of ratings | **81** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 12 months** | Every 19 months |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 185 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Do Tri](https://appshunter.io/developer/846531282) | [Xuzhou Ringder Electrical Equipment Co., Ltd](https://appshunter.io/developer/1790348646) |

## What reviewers say

### Dew Point Humidity Calculator

[App page](https://appshunter.io/ios/app/dew-point-humidity-calculator/id6480256120)

This utility app calculates dew point, humidity, and wet bulb temperature with speed and accuracy. It's designed for weather, HVAC, and scientific applications, eliminating the need for manual calculations or physical tools.

**Highlights:** Dew point calculation, Psychrometric calculations, Supports Celsius, Fahrenheit, Kelvin, Temperature unit converter, Fast and accurate results

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $7.99 | one-time |


### Ringder Smart

[App page](https://appshunter.io/ios/app/ringder-smart/id6740510175)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Dew Point Humidity Calculator free?

Dew Point Humidity Calculator is free to download, with in-app purchases available.

### Is Ringder Smart free?

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

### Do Dew Point Humidity Calculator or Ringder Smart have ads?

Dew Point Humidity Calculator shows ads; Ringder Smart does not.

### Which is updated more often, Dew Point Humidity Calculator or Ringder Smart?

Dew Point Humidity Calculator ships an update every 12 months, and Ringder Smart every 19 months. Most recently, Dew Point Humidity Calculator was updated on September 10, 2026 and Ringder Smart on September 10, 2026.

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