# Morster vs Undy

The clearest difference is price: Undy at Free against Morster's $3.99. Undy also leads on rating (5.0 vs 3.6) and update cadence (weekly vs every 10 months). Morster's advantage is in-app purchases (none vs 1) and ratings volume (5 vs 1). On ads there is nothing between them.

Undy is free to download; Morster costs $3.99 up front. Undy sells 1 in-app purchase, starting at $0.99 per month. Morster asks for nothing beyond the download.

Undy holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Morster has 5 ratings behind it against 1, so its average is the more settled of the two.

Morster ships an update every 10 months, Undy weekly. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Morster | Undy |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [3.6 (5 ratings)](https://appshunter.io/ios/app/morster/id485382815/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/undy-read-and-write-easily/id6457516127/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 42.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Weekly** |
| Monetization | Paid | **Freemium** |
| Size | 78 MB | 43 MB |
| Requires iOS | **8.0** | 18.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Sunshine Valley Systems](https://appshunter.io/developer/327149814) | [Benjamin Moore](https://appshunter.io/developer/1700973051) |

## 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


### Undy

[App page](https://appshunter.io/ios/app/undy-read-and-write-easily/id6457516127)

This app simplifies complex texts, making them easy to understand. It helps you read and comprehend various documents, from medical notes to legal documents. Additionally, it offers assistance for clear English writing.

**Highlights:** Simplifies complex texts, Makes documents easy to read, Assists with English writing, Supports various document types, Free to use

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |


## Frequently asked questions

### Is Morster free?

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

### Is Undy free?

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

### Which has better reviews, Morster or Undy?

Undy is rated higher. Morster averages 3.6 out of 5 from 5 ratings, while Undy averages 5.0 from 1 ratings.

### Do Morster or Undy have ads?

Neither Morster nor Undy shows ads.

### Which is updated more often, Morster or Undy?

Morster ships an update every 10 months, and Undy weekly. Most recently, Morster was updated on October 15, 2026 and Undy 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.*