GAF QuickMeasure vs GutterFlowApp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GAF QuickMeasure
Generate comprehensive roof measurement reports quickly and accurately. Ideal for single-family homes with reports in under an hour, and commercial/multifamily properties within 24 hours. Reports include detailed measurements of roof area, pitch, and various components.
- Fast roof reports
- Accurate measurements
- Roof area calculation
- Pitch and component details
- Under 1-hour turnaround (single-family)
Read full descriptionHide full description
GAF QuickMeasure™ delivers a complete roof measurement report guaranteed in under 1 hour for single family homes and in under 24 hours for commercial and multifamily properties! Starting at only $18 a report. Roof area, pitch, ridges, eaves, rakes, valleys, hips, flashing - all in under 1 hour.
GutterFlowApp
Streamline gutter installation operations with this comprehensive business management tool. Quickly generate estimates, manage team schedules, and track revenue. Designed for field crews, it offers offline functionality and robust data security.
- Automated estimate generation
- Team scheduling and assignment
- Client database with call history
- Real-time revenue dashboard
- Offline estimate functionality
- Secure multi-tenant data storage
Read full descriptionHide full description
GutterFlow is the all-in-one operating system for gutter installation companies. Built for crews who run their business from a truck — not a desktop. ESTIMATES IN UNDER 2 MINUTES - Tap a few sides on a building sketch — the app calculates linear feet, downspouts, end caps, and elbows automatically. - Drop in materials and labor at your rates. Apply a discount. Done. - Customer signs a polished PDF estimate sent right to their phone. A FULL SCHEDULE FOR THE WHOLE CREW - See every install on a calendar — week, day, or 3-day view. - Assign jobs to specific crew members. - Reminders sync to the team's iOS Calendar. TEAM ACCESS, ONE OWNER - Invite your crew via email. Workers see only what they need (jobs assigned to them). - Owners see everything: revenue, leads, completed jobs, drafts. - One subscription covers the whole team. CLIENT BOOK + CALL HISTORY - Every estimate is linked to a client. Client #, full address, phone — searchable. - See past jobs and total revenue per customer at a glance. MONEY DASHBOARD - Real-time revenue by status — Sent, Accepted, Completed, Drafts. - Filter by date, amount, or status pipeline. - Track growth vs. last week / month / year. OFFLINE-FRIENDLY - Estimates work without internet. Sketch on a roof in the rain — it'll sync when you're back in cell range. PRIVACY & SECURITY - Your data is yours. Multi-tenant database — other companies can never see your rows. - We don't sell data. We don't train AI on your estimates. - Cancel anytime via Apple Subscriptions. Built by people who run gutter companies. If something feels off — email gutterflowapp@gmail.com and we'll fix it the same week.
Screenshots
Verdict
The clearest difference is in-app purchases: GAF QuickMeasure at none against GutterFlowApp's 3. GAF QuickMeasure also leads on ratings volume (997 vs 1). GutterFlowApp's advantage is update cadence (every 4 days vs monthly). On price, rating, ads and device support 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. GutterFlowApp sells 3 in-app purchases, starting at $29.99 per 7 days. GAF QuickMeasure asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for GAF QuickMeasure against 5.0 for GutterFlowApp. That said, the two scores are not equally well evidenced: GAF QuickMeasure has 997 ratings behind it against 1, so its average is the more settled of the two.
GAF QuickMeasure ships an update monthly, GutterFlowApp every 4 days. The most recent releases landed on September 26, 2026 and September 18, 2026 respectively.
| Parameter | GAF QuickMeasure | GutterFlowApp |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (997 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 997 — better | 1 |
| Update frequency | Monthly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid — better | Subscription |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 5 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | GAF Corp. | ANTON NEKRASH |
Customer experience
GAF QuickMeasure
GutterFlowApp
Bugs and requests
GAF QuickMeasure
Reported bugs
4 issues- Message code authentication not sending or timing out
- Order list error - 'orders not found' message causing app crashes
- App does not properly adjust layout for iPad and iPhone orientations
- App boots users out when encountering errors
Requested features
3 requests- Improved responsive design for tablets and mobile devices
- Better orientation handling for iPad and iPhone use
- Clearer disclosure of pricing and data collection policies during registration
GutterFlowApp
Not enough reviews yet to summarise bugs or requests.
In-app purchases
GAF QuickMeasure
No in-app purchases
GutterFlowApp
- Weekly$29.997 Days
- Monthly$79.991 Month
- Yearly$799.991 Year
