# Keyword Analyzer Tools vs SludgeAI

The clearest difference is in-app purchases: Keyword Analyzer Tools at none against SludgeAI's 4. Keyword Analyzer Tools also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.6). SludgeAI's advantage is ads (none vs shown) and update cadence (every 9 days vs every 25 months). On price there is nothing between them.

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

Keyword Analyzer Tools ships an update every 25 months, SludgeAI every 9 days. The most recent releases landed on September 17, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Keyword Analyzer Tools | SludgeAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/keyword-analyzer-tools/id1478384755/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 25 months | **Every 9 days** |
| Monetization | Ad-supported | — |
| Size | 5 MB | 6 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [aZeR DiLLs](https://appshunter.io/developer/491310978) | [FANSPY LLC](https://appshunter.io/developer/1789260559) |

## What reviewers say

### Keyword Analyzer Tools

[App page](https://appshunter.io/ios/app/keyword-analyzer-tools/id1478384755)

This tool analyzes text or websites to identify high-density keywords, helping users optimize content for better search engine performance. It presents keywords from most to least used, along with word count and density.

**Highlights:** Keyword density analysis, Website keyword extraction, Text content analysis, Keyword ranking, Word count and density display

**Features:** macOS Compatibility

**In-app purchases:** none


### SludgeAI

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

**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 Keyword Analyzer Tools free?

Keyword Analyzer Tools is free to download, with no in-app purchases.

### Is SludgeAI free?

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

### Do Keyword Analyzer Tools or SludgeAI have ads?

Keyword Analyzer Tools shows ads; SludgeAI does not.

### Which is updated more often, Keyword Analyzer Tools or SludgeAI?

Keyword Analyzer Tools ships an update every 25 months, and SludgeAI every 9 days. Most recently, Keyword Analyzer Tools was updated on September 17, 2026 and SludgeAI on September 19, 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.*