KnocKnow vs Instant Roofer
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."
Instant Roofer
Instantly measure roofs using AI and aerial imagery for accurate bids. Generate 3D models and detailed reports on-site to close deals faster. Streamline your workflow and spend less time measuring, more time selling.
- AI roof measurements from aerial imagery
- Interactive 3D roof views
- Detailed roof measurements (pitch, waste, height)
- On-site pitch capture
- Polished PDF reports
- Offline uploads and syncing
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Measure any roof from your phone... before your competitor's ladder is even off the truck. Instant Roofer turns aerial imagery, 3D data and machine learning into bid-ready roof measurements in seconds. Built for roofing contractors and estimators who would rather be closing jobs than climbing shingles. POINT. MEASURE. QUOTE. Pull up a property, run an AI measurement, and walk away with every number an estimator needs — plus an interactive 3D model you can spin, zoom, and show the homeowner on the spot. KEY FEATURES • AI roof measurements from aerial imagery — no ladder required • Interactive 3D roof views: facets, wireframe, and measurement overlays (BETA) • The full numbers: pitch, waste, headwalls, sidewalls, roof height, and recommended squares (BETA) • On-site pitch capture with your phone's camera and sensors, pinned to the exact spot you measured • Polished PDF reports — email one to the customer before you leave the driveway • Job site photos and videos, organized by lead and customer • Human-certified reports on demand when the stakes are high • Built for the field: uploads queue offline and sync when you're back in signal • Optional GPS to find and measure nearby properties CLOSE MORE. CLIMB LESS. Every hour spent measuring is an hour you're not selling. Instant Roofer compresses the measure-to-quote cycle so you can bid more jobs, respond faster, and win the work while the homeowner is still deciding.
Screenshots
Verdict
The clearest difference is in-app purchases: Instant Roofer at none against KnocKnow's 2. Instant Roofer also leads on ads (none vs shown) and ratings volume (44 vs 3). On price, rating, review sentiment and update cadence 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. Instant Roofer asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for KnocKnow against 5.0 for Instant Roofer. That said, the two scores are not equally well evidenced: Instant Roofer has 44 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
KnocKnow ships an update every 3 weeks, Instant Roofer every 10 days. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.
| Parameter | KnocKnow | Instant Roofer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 5.0 (44 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 3 | 44 — better |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17 | 15.1 — better |
| Further details — not scored | ||
| Size | 42 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | KnocKnow LLC | Jacob Petrosky |
Customer experience
KnocKnow
Instant Roofer
In-app purchases
KnocKnow
- KnocKnow3 Days trial$99.991 Month
- KnocKnow$899.001 Year
Instant Roofer
No in-app purchases






