# Catalyst vs SeeOSC

The clearest difference is in-app purchases: Catalyst at none against SeeOSC's 1. SeeOSC's advantage is update cadence (weekly vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SeeOSC sells 1 one-off in-app purchase. Catalyst asks for nothing beyond the download.

Catalyst ships an update fortnightly, SeeOSC weekly. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Catalyst | SeeOSC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/catalyst-kiwiburn-guide/id6476134946/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 58 MB | 60 MB |
| Requires iOS | **15.3** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [MICHAEL ROY STEWART](https://appshunter.io/developer/1725948714) | [Jayden Allen](https://appshunter.io/developer/1792405342) |

## What reviewers say

### Catalyst

[App page](https://appshunter.io/ios/app/catalyst-kiwiburn-guide/id6476134946)

**Features:** macOS Compatibility

**In-app purchases:** none


### SeeOSC

[App page](https://appshunter.io/ios/app/seeosc/id6740987202)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Upgrade | $6.99 | one-time |


## Frequently asked questions

### Is Catalyst free?

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

### Is SeeOSC free?

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

### Do Catalyst or SeeOSC have ads?

Neither Catalyst nor SeeOSC shows ads.

### Which is updated more often, Catalyst or SeeOSC?

Catalyst ships an update fortnightly, and SeeOSC weekly. Most recently, Catalyst was updated on October 24, 2026 and SeeOSC on October 9, 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.*