Extinguisher360 vs VPD Tool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Extinguisher360
Streamline fire extinguisher inspections with this intuitive app. It simplifies compliance with NFPA 10 requirements through QR code scanning and detailed digital forms, making safety management accessible to everyone.
- Simplified inspections without special qualifications
- QR code scanning for automated inspections
- User-friendly interface for registration and inventory
- Detailed inspection and maintenance forms
- Instant report generation for record-keeping
- Enhanced safety and credibility
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With Extinguisher 360, discover the easiest, most reliable, and efficient way to manage fire extinguisher inspections. Our app allows Operations and Maintenance teams to have full control over fire extinguisher code compliance. Features: - Simplified Inspections: Say goodbye to expensive contractors. With Extinguisher 360, anyone can perform inspections without any special qualifications. - QR Code Technology: Scan QR codes to simplify and automate inspections, ensuring compliance with NFPA 10 requirements. - User-Friendly Interface: Our easy-to-use app allows quick registration and inventory management of fire extinguishers. - Inspection Form: Extinguisher 360’s simple forms ensure detailed records of inspections and maintenance. - Instant Inspection Reports: Generate detailed reports instantly for easy record-keeping and compliance. - Enhanced Safety and Credibility: Demonstrate your commitment to safety with Extinguisher 360's reliable inspection process. Take control of fire safety like never before. Seize the future of fire extinguisher inspections today! Download Extinguisher 360 and protect your business and home today.
VPD Tool
This utility app helps growers understand Vapor Pressure Deficit (VPD) for optimal plant growth. It features an interactive heatmap and stage presets to guide environmental adjustments. Calculations are performed on-device for privacy.
- Interactive VPD heatmap
- Stage-specific VPD ranges
- Leaf and Air VPD calculation
- Home and Lock Screen widgets
- On-device calculations
- CSV log export
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Know your VPD in seconds. Enter temperature & humidity (or tap the interactive heatmap) to see Leaf VPD and Air VPD with scientifically labeled isolines. Choose Seedling / Veg / Flower / Late Flowering to see target VPD ranges and how best to nudge your environment to “ideal.” Why growers love it • Interactive heatmap: drag to explore temperature–humidity combos • Stage presets: recommended VPD bands by plant development stage • Leaf vs Air: leaf–air offset, dew point, absolute humidity • Beautiful widgets: small/medium/large Home & Lock Screen widgets • Private by design: on-device calculations, no account required Details • VPD = es(T) × (1 − RH/100); leaf VPD uses leaf temperature (air + ΔT) • Absolute humidity via water vapor partial pressure (ideal gas law) • Full support for °C/°F, metric/imperial • Export logs to CSV Support Questions or feedback: support@nicksberryfarm.com
Screenshots
Verdict
The clearest difference is price: Extinguisher360 at Free against VPD Tool's $0.49. Extinguisher360 also leads on ratings volume (3 vs 1) and iOS requirement (15.6 vs 18.5). On rating, review sentiment, update cadence and ads 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
Extinguisher360 is free to download; VPD Tool costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Extinguisher360 against 5.0 for VPD Tool. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Extinguisher360 ships an update every 4 months, VPD Tool every 2 months. The most recent releases landed on October 21, 2026 and October 18, 2026 respectively.
| Parameter | Extinguisher360 | VPD Tool |
|---|---|---|
| Price | Free — better | $0.49 |
| Rating | 5.0 (3 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.5 |
| Further details — not scored | ||
| Size | 52 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Extinguisher 360 Inc | Nicholas Hwang |
Customer experience
Extinguisher360
VPD Tool
In-app purchases
Extinguisher360
No in-app purchases
VPD Tool
No in-app purchases
Questions
Is Extinguisher360 free?
Is VPD Tool free?
Which has better reviews, Extinguisher360 or VPD Tool?
Do Extinguisher360 or VPD Tool have ads?
Which is updated more often, Extinguisher360 or VPD Tool?
Other comparisons
