# Voltages S vs Morse Code Trainer

The clearest difference is price: Morse Code Trainer at Free against Voltages S's $0.99. Morse Code Trainer also leads on update cadence (every 4 weeks vs every 7 months). Voltages S's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

Morse Code Trainer is free to download; Voltages S costs $0.99 up front. Morse Code Trainer sells 3 in-app purchases, starting at $2.99 per 7 days. Voltages S asks for nothing beyond the download.

Voltages S ships an update every 7 months, Morse Code Trainer every 4 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Voltages S | Morse Code Trainer |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 weeks** |
| Size | 2 MB | 7 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Frank Kowalewski](https://appshunter.io/developer/291362867) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Voltages S

[App page](https://appshunter.io/ios/app/voltages-s/id6739780795)

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

**In-app purchases:** none


### Morse Code Trainer

[App page](https://appshunter.io/ios/app/morse-code-trainer-learn-cw/id6771433220)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dit Dah Drills: Weekly | $2.99 | per 7 days |
| Flashlight Beacon: Yearly | $14.99 | per year |
| Telegraph Signals: Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Voltages S free?

Voltages S costs $0.99, with no in-app purchases.

### Is Morse Code Trainer free?

Morse Code Trainer is free to download, with in-app purchases available.

### Do Voltages S or Morse Code Trainer have ads?

Neither Voltages S nor Morse Code Trainer shows ads.

### Which is updated more often, Voltages S or Morse Code Trainer?

Voltages S ships an update every 7 months, and Morse Code Trainer every 4 weeks. Most recently, Voltages S was updated on October 30, 2026 and Morse Code Trainer 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.*