# Radio Code Master vs Eruption Time

The clearest difference is in-app purchases: Eruption Time at none against Radio Code Master's 2. Eruption Time also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Radio Code Master sells 2 one-off in-app purchases. Eruption Time asks for nothing beyond the download.

Radio Code Master ships an update every 5 weeks, Eruption Time every 3 weeks. The most recent releases landed on October 6, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Radio Code Master | Eruption Time |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (4 ratings)](https://appshunter.io/ios/app/radio-code-master-unlock/id1454120777/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 91.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 73 MB | 8 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [APPMEUP](https://appshunter.io/developer/1023725442) | [Project Barn LLC](https://appshunter.io/developer/1869576301) |

## What reviewers say

### Radio Code Master

[App page](https://appshunter.io/ios/app/radio-code-master-unlock/id1454120777)

Instantly recover activation codes for Renault and Ford car stereos after a battery change. Simply find your radio's precode, enter it into the app, and receive your unlock code immediately. Get your music back without paying a dealer.

**Highlights:** Instant radio code recovery, Supports Renault and Ford vehicles, Find precode on radio label, Simple and efficient interface, Immediate unlock code generation, Informative help section

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Instant unlock | $0.99 | one-time |
| Instant unlock | $1.99 | one-time |


### Eruption Time

[App page](https://appshunter.io/ios/app/eruption-time/id6780317289)

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

**In-app purchases:** none


## Frequently asked questions

### Is Radio Code Master free?

Radio Code Master is free to download, with in-app purchases available.

### Is Eruption Time free?

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

### Do Radio Code Master or Eruption Time have ads?

Radio Code Master shows ads; Eruption Time does not.

### Which is updated more often, Radio Code Master or Eruption Time?

Radio Code Master ships an update every 5 weeks, and Eruption Time every 3 weeks. Most recently, Radio Code Master was updated on October 6, 2026 and Eruption Time on September 29, 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.*