# Morse Code Master vs Online Unit Converter

The clearest difference is in-app purchases: Morse Code Master at none against Online Unit Converter's 1. Online Unit Converter's advantage is update cadence (every 8 days vs every 6 months) and iOS requirement (9.0 vs 17.0). On price, ads and device support there is nothing between them.

Morse Code Master costs $0.99 and Online Unit Converter $0.99 up front. Online Unit Converter sells 1 one-off in-app purchase. Morse Code Master asks for nothing beyond the download.

Morse Code Master ships an update every 6 months, Online Unit Converter every 8 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | Morse Code Master | Online Unit Converter |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 8 days** |
| Monetization | Paid | — |
| Size | 1 MB | 32 MB |
| Requires iOS | 17.0 | **9.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [博 彭](https://appshunter.io/developer/1293268076) | [飞 李](https://appshunter.io/developer/1633407304) |

## What reviewers say

### Morse Code Master

[App page](https://appshunter.io/ios/app/morse-code-master/id1663425426)

Easily encode and decode Morse code with support for International and English variations. Features automatic playback, an alphabet reference, common phrases, and text-to-speech conversion for enhanced understanding.

**Highlights:** Morse code encoding and decoding, International and English Morse code support, Automatic playback function, Morse code alphabet reference, Common phrase list, Text to speech conversion

**Features:** Vision Pro support

**In-app purchases:** none


### Online Unit Converter

[App page](https://appshunter.io/ios/app/online-unit-converter/id6444185100)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP | $0.99 | one-time |


## Frequently asked questions

### Is Morse Code Master free?

Morse Code Master costs $0.99, with no in-app purchases.

### Is Online Unit Converter free?

Online Unit Converter costs $0.99, and also offers in-app purchases.

### Do Morse Code Master or Online Unit Converter have ads?

Neither Morse Code Master nor Online Unit Converter shows ads.

### Which is updated more often, Morse Code Master or Online Unit Converter?

Morse Code Master ships an update every 6 months, and Online Unit Converter every 8 days. Most recently, Morse Code Master was updated on November 3, 2026 and Online Unit Converter on November 3, 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.*