# 105.1 I vs Throwback 103

The clearest difference is iOS requirement: 105.1 I at 15.0 against Throwback 103's 18.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

105.1 I ships an update every 13 months, Throwback 103 every 9 months. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 105.1 I | Throwback 103 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/1051-i-rock/id1438643939/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 13 months | **Every 9 months** |
| Monetization | Ad-supported | — |
| Size | 16 MB | 12 MB |
| Requires iOS | **15.0** | 18.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Illiad Media Boise, LLC](https://appshunter.io/developer/1521322082) | [Riverbend Communications Llc](https://appshunter.io/developer/1187366005) |

## What reviewers say

### 105.1 I

[App page](https://appshunter.io/ios/app/1051-i-rock/id1438643939)

This app provides local and independent rock music for listeners in Twin Falls. It features a curated playlist for rock enthusiasts, broadcasting Idaho's pure rock sound. The station is employee-owned and based in the Magic Valley.

**Highlights:** Local rock music, Independent playlist, Twin Falls focus, Magic Valley broadcast, Employee-owned station

**Features:** macOS Compatibility

**In-app purchases:** none


### Throwback 103

[App page](https://appshunter.io/ios/app/throwback-103/id6469551931)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 105.1 I free?

105.1 I is free to download, with no in-app purchases.

### Is Throwback 103 free?

Throwback 103 is free to download, with no in-app purchases.

### Do 105.1 I or Throwback 103 have ads?

Both 105.1 I and Throwback 103 show ads.

### Which is updated more often, 105.1 I or Throwback 103?

105.1 I ships an update every 13 months, and Throwback 103 every 9 months. Most recently, 105.1 I was updated on October 23, 2026 and Throwback 103 on October 16, 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.*