KnocKnow vs Spider Eye
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KnocKnow
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.
- Property data analysis
- ZIP code and address search
- Customizable property filters
- Map-based zone highlighting
- D2D sales route optimization
- Data-backed sales decisions
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Stop wasting time knocking the wrong doors. KnocKnow analyzes millions of property data points to show you exactly where to knock. Search any ZIP code or address, apply filters that match your ideal property, and instantly see the best zones to work — right on the map. Whether you sell solar, roofing, pest control, security, or anything door-to-door, Knocknow helps you skip the dead ends and focus on doors that actually convert. Now available in the contiguous United States How it works: - Search by ZIP code or address - Set filters that match your ideal property — home age, property type, ownership, and more - KnocKnow highlights the best zones to knock based on real property data Built for D2D sales reps who want to: - Spend less time driving around guessing - Hit higher-quality doors from the first knock - Cover new territories without local knowledge - Back every route decision with real data Your time is your money. Stop guessing. Start KnocKnowing."
Spider Eye
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Spider Eye is the on-site scanning companion for Park Spider, the web-based parking management platform for property management companies, HOAs, and landlords. Point your phone at a license plate and get an instant verdict. Spider Eye reads plates with your camera and checks them against the vehicle list your organization maintains in the Park Spider dashboard, so anyone on your team can patrol a lot without a clipboard or a printed list. WHAT IT DOES - Scans plates live through the camera as you walk the lot - Instantly shows whether a vehicle is registered, has a guest pass, or is unknown - Uses state of the art machine learning & computer vision for super fast detection - Keeps each property's vehicle list synced to your phone - Records scans to your organization's history in the dashboard BUILT FOR TEAMS Spider Eye is for staff at organizations that already manage parking with Park Spider. It requires an active Park Spider organization account to sign in; it is not a standalone app. Properties, vehicle lists, and team members are all managed in the web dashboard at parkspider.com. Questions or data requests: privacy@parkspider.com
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 2, 2026 and October 12, 2026 respectively.
| Parameter | KnocKnow | Spider Eye |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17 | 16.4 — better |
| Further details — not scored | ||
| Size | 42 MB | 88 MB |
| Age rating | 4+ | 4+ |
| Developer | KnocKnow LLC | Park Spider, LLC |
In-app purchases
KnocKnow
- KnocKnow3 Days trial$99.991 Month
- KnocKnow$899.001 Year
Spider Eye
No in-app purchases









