# Imatra vs Dew Point & Humidity Calc

The clearest difference is in-app purchases: Imatra at none against Dew Point & Humidity Calc's 2. Dew Point & Humidity Calc's advantage is update cadence (every 5 weeks vs every 12 months) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Dew Point & Humidity Calc sells 2 in-app purchases, starting at $2.99 per month. Imatra asks for nothing beyond the download.

Imatra ships an update every 12 months, Dew Point & Humidity Calc every 5 weeks. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Imatra | Dew Point & Humidity Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 5 weeks** |
| Size | 59 MB | 35 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Envitech Ltd.](https://appshunter.io/developer/669683184) | [Tirin](https://appshunter.io/developer/1665717789) |

## What reviewers say

### Imatra

[App page](https://appshunter.io/ios/app/imatra-lpr-air/id1550961839)

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

**In-app purchases:** none


### Dew Point & Humidity Calc

[App page](https://appshunter.io/ios/app/dew-point-and-humidity-calc/id6789254708)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dew Monthly Premium | $2.99 | per month |
| Dew Lifetime Premium | $4.99 | one-time |


## Frequently asked questions

### Is Imatra free?

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

### Is Dew Point & Humidity Calc free?

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

### Do Imatra or Dew Point & Humidity Calc have ads?

Neither Imatra nor Dew Point & Humidity Calc shows ads.

### Which is updated more often, Imatra or Dew Point & Humidity Calc?

Imatra ships an update every 12 months, and Dew Point & Humidity Calc every 5 weeks. Most recently, Imatra was updated on October 27, 2026 and Dew Point & Humidity Calc on October 31, 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.*