D vs HAZOP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
D
Read full descriptionHide full description
It's new and easy way to check in. Just open this application while you are inside the working area, you can check in and out. And also you can view your own check in and out history by using this application everywhere.
HAZOP
Read full descriptionHide full description
HAZOP & LOPA – Process Hazard Analysis Made Easy Enhance process safety and risk management with HAZOP & LOPA, the ultimate tool for conducting Hazard and Operability Studies (HAZOP) and Layer of Protection Analysis (LOPA) efficiently. Designed for engineers, safety professionals, and risk analysts, this app simplifies complex hazard assessments while ensuring compliance with industry standards. Key Features: HAZOP Study Support – Guide your team through systematic hazard identification with customizable deviation templates, nodes, and risk matrices. LOPA Integration – Seamlessly transition from HAZOP to LOPA to quantify risk reduction requirements and Independent Protection Layers (IPLs). Predefined Checklists & Standards – Align with IEC 61882, OSHA PSM, and CCPS guidelines for consistent, compliant analyses. Risk Prioritization – Automate risk ranking with visual matrices (e.g., 5x5 Likelihood/Severity) and track mitigation actions. Collaboration Tools – Share reports, assign actions, and sync findings across teams in real time. Offline Mode – Conduct studies anywhere, even without internet access. Who Should Use It? Process Safety Engineers Risk Management Teams Chemical & Oil/Gas Industry Professionals HSE Managers & Consultants Plant Operators & Designers Why Choose HAZOP & LOPA? Save Time – Streamline studies with structured workflows. Reduce Errors – Built-in validation and industry best practices. Improve Compliance – Generate audit-ready documentation. Download now to transform your process hazard analyses into a faster, smarter, and more reliable experience!
Screenshots
Verdict
D and HAZOP are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | D | HAZOP |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | PTT Group | GAMAL ABDELNASER GABR GABR |
In-app purchases
D
No in-app purchases
HAZOP
No in-app purchases









