# Morster vs Humidity Calc

The clearest difference is price: Humidity Calc at Free against Morster's $3.99. Humidity Calc also leads on update cadence (every 3 weeks vs every 10 months). Morster's advantage is ads (none vs shown) and iOS requirement (8.0 vs 17.6). On in-app purchases and device support there is nothing between them.

Humidity Calc is free to download; Morster costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Morster ships an update every 10 months, Humidity Calc every 3 weeks. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Morster | Humidity Calc |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[3.6 (5 ratings)](https://appshunter.io/ios/app/morster/id485382815/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 42.3% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 78 MB | 38 MB |
| Requires iOS | **8.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sunshine Valley Systems](https://appshunter.io/developer/327149814) | [Hiroaki Oosawa](https://appshunter.io/developer/6797133579) |

## What reviewers say

### Morster

[App page](https://appshunter.io/ios/app/morster/id485382815)

This tool allows users to encode and decode Morse code using various input methods like a graphical key, camera light, or microphone sound. It offers features for learning Morse code, including references, charts, and interactive elements. Users can also communicate Morse code visually or audibly with others.

**Highlights:** Graphical interactive Morse key, Translate text to/from Morse code, Visual and audio Morse decoding via camera/microphone, Morse code reference and learning aids, Visual Morse communication with screen/flash, Multiplayer Morse communication via Wi-Fi/Bluetooth

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

**In-app purchases:** none


### Humidity Calc

[App page](https://appshunter.io/ios/app/humidity-calc/id6797133577)

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

**In-app purchases:** none


## Frequently asked questions

### Is Morster free?

Morster costs $3.99, with no in-app purchases.

### Is Humidity Calc free?

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

### Do Morster or Humidity Calc have ads?

Humidity Calc shows ads; Morster does not.

### Which is updated more often, Morster or Humidity Calc?

Morster ships an update every 10 months, and Humidity Calc every 3 weeks. Most recently, Morster was updated on October 15, 2026 and Humidity Calc on October 9, 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.*