# Vivid Pathology vs SludgeAI

The clearest difference is in-app purchases: Vivid Pathology at none against SludgeAI's 4. SludgeAI's advantage is update cadence (every 9 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SludgeAI sells 4 in-app purchases, starting at $29.00 per month. Vivid Pathology asks for nothing beyond the download.

Vivid Pathology ships an update every 3 weeks, SludgeAI every 9 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Vivid Pathology | SludgeAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sludgeai/id6753836773/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 29 MB | 6 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Brannon Hogue](https://appshunter.io/developer/1692454668) | [FANSPY LLC](https://appshunter.io/developer/1789260559) |

## What reviewers say

### Vivid Pathology

[App page](https://appshunter.io/ios/app/vivid-pathology/id6747091716)

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

**In-app purchases:** none


### SludgeAI

[App page](https://appshunter.io/ios/app/sludgeai/id6753836773)

Access and manage your AI-generated short-form videos from anywhere. This companion app allows creators to browse, watch, save, and share their processed clips instantly. Organize your content library and manage projects on the go.

**Highlights:** Browse and organize AI-generated videos, Watch AI-edited clips instantly, Save videos to camera roll, Share content to social platforms, Manage projects and content library, Access video library on the go

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sludge AI Basic Monthly | $29.00 | per month |
| Sludge AI Pro Monthly | $49.00 | per month |
| Sludge AI Basic Annual | $239.99 | per year |
| Sludge AI Pro Annual | $409.00 | per year |


## Frequently asked questions

### Is Vivid Pathology free?

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

### Is SludgeAI free?

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

### Do Vivid Pathology or SludgeAI have ads?

Neither Vivid Pathology nor SludgeAI shows ads.

### Which is updated more often, Vivid Pathology or SludgeAI?

Vivid Pathology ships an update every 3 weeks, and SludgeAI every 9 days. Most recently, Vivid Pathology was updated on October 24, 2026 and SludgeAI on October 28, 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.*