# OC App vs blasmusik

The clearest difference is update cadence: blasmusik at every 8 months against OC App's every 22 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. OC App sells 26 one-off in-app purchases and blasmusik sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

OC App ships an update every 22 months, blasmusik every 8 months. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | OC App | blasmusik |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 8 months** |
| Size | 161 MB | 162 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Dr. R. Kaden Verlag GmbH & Co. KG](https://appshunter.io/developer/787059978) | [Golden Wind GmbH](https://appshunter.io/developer/1440781773) |

## What reviewers say

### OC App

[App page](https://appshunter.io/ios/app/oc-app/id1286728815)

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

**In-app purchases (26)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OC 2/2022 | $17.99 | one-time |
| OC 3/2022 | $17.99 | one-time |
| OC 4/2022 | $17.99 | one-time |
| OC 5/2022 | $17.99 | one-time |
| OC 6/2022 | $17.99 | one-time |
| OC 1/2023 | $17.99 | one-time |
| OC 2/2023 | $17.99 | one-time |
| OC 3/2023 | $17.99 | one-time |
| OC 4/2023 | $17.99 | one-time |
| OC 5/2023 | $17.99 | one-time |
| OC 6/2023 | $17.99 | one-time |
| OC 1/2024 | $17.99 | one-time |
| OC 2/2024 | $17.99 | one-time |
| OC 3/2026 | $17.99 | one-time |
| OC 1/2026 | $17.99 | one-time |
| OC 2/2026 | $17.99 | one-time |
| OC 6/2025 | $17.99 | one-time |
| OC 5/2025 | $17.99 | one-time |
| OC 4/2025 | $17.99 | one-time |
| OC 3/2025 | $17.99 | one-time |
| OC 2/2025 | $17.99 | one-time |
| OC 1/2025 | $17.99 | one-time |
| OC 6/2024 | $17.99 | one-time |
| OC 5/2024 | $17.99 | one-time |
| OC 4/2024 | $17.99 | one-time |
| OC 3/2024 | $17.99 | one-time |


### blasmusik

[App page](https://appshunter.io/ios/app/blasmusik/id1440781774)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| blasmusik /2019 | $2.99 | one-time |


## Frequently asked questions

### Is OC App free?

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

### Is blasmusik free?

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

### Do OC App or blasmusik have ads?

Neither OC App nor blasmusik shows ads.

### Which is updated more often, OC App or blasmusik?

OC App ships an update every 22 months, and blasmusik every 8 months. Most recently, OC App was updated on October 9, 2026 and blasmusik on October 1, 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.*