# KnocKnow vs Spider Eye

The clearest difference is in-app purchases: Spider Eye at none against KnocKnow's 2. Spider Eye also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. KnocKnow sells 2 in-app purchases, starting at $99.99 per month. Spider Eye asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 18, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | KnocKnow | Spider Eye |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/knocknow/id6748841288/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 88 MB |
| Requires iOS | 17 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KnocKnow LLC](https://appshunter.io/developer/1827621168) | [Park Spider, LLC](https://appshunter.io/developer/6785576765) |

## What reviewers say

### KnocKnow

[App page](https://appshunter.io/ios/app/knocknow/id6748841288)

This app analyzes property data to identify high-conversion doors for door-to-door sales. It helps users find the best areas to work by applying filters for property type, age, and ownership. Maximize your sales efforts by focusing on the most promising leads.

**Highlights:** Property data analysis, ZIP code and address search, Customizable property filters, Map-based zone highlighting, D2D sales route optimization, Data-backed sales decisions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KnocKnow | $99.99 | per month |
| KnocKnow | $899.00 | per year |


### Spider Eye

[App page](https://appshunter.io/ios/app/spider-eye/id6785576762)

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

**In-app purchases:** none


## Frequently asked questions

### Is KnocKnow free?

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

### Is Spider Eye free?

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

### Do KnocKnow or Spider Eye have ads?

KnocKnow shows ads; Spider Eye does not.

### Which is updated more often, KnocKnow or Spider Eye?

KnocKnow ships an update every 3 weeks, and Spider Eye every 3 weeks. Most recently, KnocKnow was updated on October 18, 2026 and Spider Eye on October 12, 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.*