# Spike Studio vs Catalyst

The clearest difference is rating: Catalyst at 5.0 against Spike Studio's 3.1. Spike Studio's advantage is ratings volume (11 vs 1). 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.

Catalyst holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Spike Studio has 11 ratings behind it against 1, so its average is the more settled of the two.

Spike Studio ships an update every 8 days, Catalyst every 9 days. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Spike Studio | Catalyst |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (11 ratings)](https://appshunter.io/ios/app/spike-studio/id6749781844/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/catalyst-ai-workspace/id6787500410/reviews)** |
| Number of ratings | **11** | 1 |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 9 days |
| Monetization | Free | Free |
| Size | 118 MB | 31 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Jan Stellmann](https://appshunter.io/developer/1832066618) | [ObjectGraph LLC](https://appshunter.io/developer/284700705) |

## What reviewers say

### Spike Studio

[App page](https://appshunter.io/ios/app/spike-studio/id6749781844)

Run powerful AI models locally on your device without cloud dependence. Enjoy private, fast responses and full control over your AI experience. Ideal for developers and AI enthusiasts seeking unlimited model usage and zero tracking.

**Highlights:** Run AI models locally, No cloud dependence, Private data processing, Zero cloud costs, Unlimited model usage, Instant responses

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Catalyst

[App page](https://appshunter.io/ios/app/catalyst-ai-workspace/id6787500410)

Access multiple leading AI models in one app, compare their responses, and generate images or videos. It also supports Python code execution and web searches with sources. Bring your own API keys for flexibility and control over your data.

**Highlights:** Access multiple AI models, Compare AI model responses, Generate images and video clips, Secure Python sandbox, Web search with sources, Attach files and photos, Persistent conversation memory

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

**In-app purchases:** none


## Frequently asked questions

### Is Spike Studio free?

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

### Is Catalyst free?

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

### Which has better reviews, Spike Studio or Catalyst?

Catalyst is rated higher. Spike Studio averages 3.1 out of 5 from 11 ratings, while Catalyst averages 5.0 from 1 ratings.

### Do Spike Studio or Catalyst have ads?

Neither Spike Studio nor Catalyst shows ads.

### Which is updated more often, Spike Studio or Catalyst?

Spike Studio ships an update every 8 days, and Catalyst every 9 days. Most recently, Spike Studio was updated on October 6, 2026 and Catalyst on October 8, 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.*