Hazardous Area Classification Made Simple
Web-based app designed to support the classification of explosion hazard zones for flammable liquids and gases, developed based on the IEC 60079-10-1 standard.
proven in practice
fast results
Guided Process
#05 simple steps to get results
Designed for engineers, ATEX experts and safety professionals, the application streamlines the entire classification process through an intuitive, step-by-step workflow.
#01 Emission location
Define the exact location of the potential release
#02 Emission details
Choose the type of emission scenario that best represents your process conditions
#03 Substance selection
Select a substance from the database or add a new one
#04 process data
Enter key process parameters, such as substance temperature and pressure
#05 Input Data Configuration
Enter detailed input data, such as assumed leak size or ventilation conditions
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Manage projects. Develop the database.
Create clear reports.
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#about
Hazardous area classification made simple
ExSolver is a professional software solution designed for engineers, process designers, HSE professionals, auditors and ATEX experts. The application supports the calculation and classification of hazardous areas for flammable gases and liquids in accordance with the methodology, definitions and formulas specified in the standard IEC 60079-10-1.The application guides users through the entire classification process using built-in comments, explanations and decision-support tips that help ensure correct parameter selection and consistent calculation results. ExSolver is designed to make complex ATEX assessments easier, faster and more reliable.
calculation formulas and definitions in accordance with the standard IEC 60079-10-1
app developed and verified by experts
structured workflow with built-in guidelines
constantly updated database of flammable substances with the option to add your own data
easy creation of reports and assessment summaries
project manager - save emission scenarios and calculations and edit them at any time
See how it works
The following video is a step-by-step example of how to use ExSolver to determine the zone specified in Annex E of IEC 60079-10-1, Example 1.
Key benefits
Significant reduction in hazardous area classification calculation time
Faster and more efficient decision-making process - cost reduction
Intuitive and transparent workflow supporting both experienced specialists and new users
Repeatable and standardized calculation procedure
Editable results in Excel format
Clear and organized presentation of assumptions, parameters and results
ExSolver includes an integrated database containing more than 100 flammable substances with predefined physical and explosion-related properties. The database can be easily expanded, allowing users to add custom substances and modify existing entries.
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#news
What's new?
April 2026
We are constantly updating our database of flammable liquids and gases. Currently, users have access to a core database of over 100 substances, with the possibility of further additions.
February 2026
Drawing on years of experience, our team of experts and explosion safety engineers is making this tool - developed by practitioners - available for wider use by engineers, designers, maintenance staff, and occupational safety and health specialists. In developing this tool, we have sought to incorporate all the insights of our experts and our clients.
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#pricing
Simple and clear rules
ExSolver is available through two subscription plans: Project and Project Plus. We focus on simplicity and clarity to keep our offering easy to understand. Choose the plan that best fits your needs.
| Plan | Project | Project Plus |
|---|---|---|
| Billing period | 1 Month | 3 Months |
| Price | 259 EUR | 599 EUR |
| Access to all features | ✔ | ✔ |
| Regular updates | ✔ | ✔ |
| Database access | ✔ | ✔ |
| Full reporting functionality | ✔ | ✔ |
| Best for | short term project | multiple projects |
Interested?
If you’d like to implement ExSolver in your organization, please contact us using the contact form.Don’t see the plan you're looking for?
Get in touch - we’ll be happy to help you find the right solution.
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#contact
Ready to get started?
If you have any technical or sales-related questions, please contact our team. We’re happy to help!
#thank you
Our team will do its best to respond within 24 hours.
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#terms of use
The rules for using ExSolver
Effective Date: 03.06.2026
Last Updated: 03.06.20261. Introduction
Please read these Terms of Use ("Terms") carefully before using the ExSolver application available at https://app.exsolver.com ("Application" or "Website"). These Terms constitute a legally binding agreement between you ("User" or "you") and ExSolver, Poland ("Provider", "we", or "us").
By accessing or using the Application, you agree to be bound by these Terms. If you do not agree to all the terms and conditions of this agreement, you are not authorized to access or use the Application.2. Definitions and general provisionsApplication: The online software tool named "ExSolver", accessible via https:///app.exsolver.com, engineered to assist in determining gas explosive hazardous areas based on the EN-IEC 60079-10-1:2021 Edition 3.0 standard.User: Any individual, legal entity, or organizational unit without legal personality that registers an account and purchases access to the Application.Access Period: The non-renewable, fixed timeframe during which the User is granted access to the Application's functionalities ("Project" or "Project Plus").Governing Law: These Terms and any disputes arising out of or in connection with them shall be governed by, interpreted, and construed exclusively in accordance with the laws of Poland.3. Character of the application and User qualificationsThe Application is a calculation tool intended to assist and support the process of determining gas explosive hazardous areas according to the EN-IEC 60079-10-1:2021 Edition 3.0.Nature of the Tool and Disclaimer of Outcomes: The Application serves strictly as an engineering support tool designed to streamline calculations. While the Provider makes every effort to ensure the technical quality of the software, ExSolver assumes no responsibility or liability for the correctness, accuracy or consequences of the generated results.User Competence and Final Validation: The proper use of the Application and the correct interpretation of its outputs require specialized engineering knowledge and professional competence regarding explosive atmospheres. The User bears sole responsibility for the final verification, validation, and implementation of any data or results generated by the Application.4. Access packages and pricingAccess to the Application is paid and divided into two distinct, fixed-term packages:"Project" Package: Access for a continuous period of 1 (one) month at the price of 259 EUR."Project Plus" Package: Access for a continuous period of 3 (three) months at the price of 599 EUR.Net Prices: All prices listed on the Website or provided by the Provider are strictly net prices. They do not include Value Added Tax (VAT) or any other applicable statutory taxes, levies or financial transaction fees, which will be calculated and added in accordance with prevailing tax regulations.Non-Renewable Access: The chosen subscription package does not renew automatically. Upon the natural expiration of the purchased Access Period, the User’s access to the Application’s features automatically terminates. To restore access, the User must explicitly initiate and complete a new purchase.5. Payment and account activationInvoicing: Payments are processed traditionally based on a commercial pro-forma invoice or standard commercial invoice issued directly by the Provider to the User. No automated electronic payment processors are integrated into the Website.Access Provisioning: The Provider shall grant the User functional access to the Application within a maximum timeframe of 24 hours from the exact moment the full payment amount is successfully credited and cleared in the Provider’s designated bank account.Credentials & Password Policy: Upon account activation, the User will receive an automated email containing a system-generated username (login) and a temporary password. The User is strictly required to change the temporary password immediately upon their first login to a unique, highly secure
password that complies with the Application’s built-in password policy. The User is entirely responsible for maintaining the strict confidentiality of their active login credentials.6. Refund policy and consumer rightsFinal Sale (No-Refunds): All purchases of Access Periods are final, irrevocable, non-cancellable, and completely non-refundable under any regular circumstances once access is provisioned.Consumer Information (B2C): Although the Application is custom-designed and primarily targeted at Business-to-Business (B2B) professionals, individual physical persons acting as consumers (B2C) are not prohibited from purchasing access.Explicit Waiver of Withdrawal Right: By completing the purchase, requesting the invoice, and logging into the Application for the first time, the User (including Users qualifying as consumers under European Union law) explicitly requests and demands the immediate performance of the digital service prior to the expiration of the statutory 14-day cancellation window. The User hereby acknowledges and agrees that by doing so, they definitively forfeit their statutory right of withdrawal from the contract under the EU Digital Content Directive and corresponding local consumer protection enactments.7. Absolute limitation of liability"As-Is" Service: The Application is provided strictly on an "AS IS" and "AS AVAILABLE" basis. The Provider makes no warranties, guarantees, or representations of any kind, whether express, implied, statutory or otherwise, regarding the operational availability, uptime, complete error-free functionality, or fitness for any general or specific purpose of the software.No Guarantee of Availability: The Provider does not guarantee uninterrupted, secure, or stable access to the Application. Necessary system maintenance, updates, technical optimization, server overloads, or external force majeure events may temporarily suspend access without prior notice and without establishing any form of liability on the side of the Provider.Total Exclusion of Liability for Damages: To the maximum extent permitted by applicable governing law, the Provider shall not be held liable for any direct, indirect, incidental, special, consequential, punitive, or exemplary damages. This includes, without limitation, damages for loss of business profits, loss of commercial goodwill, data corruption, project delays, business interruption, industrial or site accidents, regulatory non -compliance fines, or any other tangible or intangible losses arising out of the use of, or inability to safely use, the Application or its calculations.Maximum Financial Cap: In any circumstance where the absolute exclusion of liability is deemed invalid or unenforceable under prevailing jurisdiction, the Provider’s maximum aggregate financial liability to the User for any and all combined claims arising out of or related to these Terms or the Application shall be strictly capped and limited to the exact amount of the last payment successfully received by the Provider from that specific User for their current or most recent Access Period.8. Data confidentiality and securityStrict Privacy of Project Data: The Provider guarantees full, comprehensive, and unconditional confidentiality regarding any technical data, variables, engineering parameters, environmental factors, or project details entered into the Application by the User.No Data Inspection: The Provider expressly declares that it does not inspect, view, monitor, copy, store for external extraction, sell, or analyze the data inputted by the User into their projects within the Application, unless explicitly requested in writing by the User for technical support or debugging purposes.9. Final provisions and jurisdictionSeverability: If any individual provision of these Terms is determined to be unenforceable, illegal, or invalid under any applicable law, such unenforceability or invalidity shall not affect or render the remaining provisions of these Terms invalid as a whole; instead, the invalid term shall be replaced by a valid one closest to the original commercial intent.Amendments: The Provider reserves the right to modify, adjust, or rewrite these Terms at any time. Continued use of the Application after any such updates are officially posted on the Website constitutes full and unreserved acceptance of the revised Terms.Dispute Resolution: Any dispute, controversy, or legal claim arising out of, or relating directly or indirectly to these Terms, including their validity, breach, or termination, shall be submitted to the exclusive jurisdiction of the common court of law having territorial jurisdiction over the registered seat of the Provider in Warsaw, Poland.
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#privacy policy
We respect your privacy
Effective Date: 03.06.2026
Last Updated: 03.06.20261. IntroductionWelcome to ExSolver ("ExSolver", "we", "our", or "us").This Privacy Policy explains how we collect, use and protect personal data when you use our website and web application.We are committed to protecting your privacy and processing personal data in accordance with applicable data protection laws, including Regulation (EU) 2016/679 (GDPR).By using ExSolver, you confirm that you have read and understood this Privacy Policy.2. Data ControllerThe data controller is:
ExSolver
Poland
Email: [email protected]3. ScopeThis Privacy Policy applies to:- Users of the ExSolver web application;
- Visitors of the ExSolver website (https://exsolver.com);
- Individuals contacting us via contact form or email;
- Newsletter subscribers;
- Individuals requesting quotations or invoices.ExSolver is a browser-based web application. We do not provide a mobile application.4. Data We CollectWe may collect and process the following categories of personal data:4.1 Account Data- Email address;
- Authentication data (managed via Firebase Authentication);
- User ID and account status information.4.2 Application Data (Calculations)When using ExSolver, we may store:- Input data provided for calculations;
- Calculation results;
- Technical project-related data entered into the system.Depending on available functionality, users may be able to modify or delete their stored calculation data within the application.4.3 Contact Form Data- First name;
- Last name;
- Company name;
- Email address;
- Message content.4.4 Newsletter Data- Email address;
- Subscription status and consent records.4.5 Billing and Commercial DataIf you request a quotation or invoice:- Company name;
- Address;
- VAT ID / Tax Identification Number;
- Contact person details;
- Email address.4.6 Technical DataWe may automatically collect limited technical data such as:- IP address;
- Browser type;
- Device information;
- Operating system;
- Access time and date;
- Basic usage data.5. Legal Basis for ProcessingWe process personal data under the following legal bases:- Performance of a contract (Art. 6(1)(b) GDPR) – account management and service delivery;
- Legal obligations (Art. 6(1)(c) GDPR) – accounting and tax requirements;
- Legitimate interests (Art. 6(1)(f) GDPR) – security, system maintenance, service improvement, and communication;
- Consent (Art. 6(1)(a) GDPR) – newsletters, Google Analytics, and cookie-based analytics.6. How We Use DataWe use personal data to:- Provide access to ExSolver;
- Manage user accounts;
- Store and process calculation data;
- Respond to inquiries;
- Send newsletters (if consent is given);
- Issue invoices and quotations;
- Maintain security and prevent misuse;
- Improve functionality and performance of our services.7. Service ProvidersWe use third-party service providers to operate our services:Google FirebaseWe use Firebase services, including:- Firebase Hosting;
- Firebase Authentication;
- Cloud Firestore.MailerLiteWe use MailerLite to manage and send newsletters.Google AnalyticsWe use Google Analytics only after user consent via cookie banner to analyze website traffic and improve our services.CarrdOur marketing website is built and hosted using Carrd services, while the domain is managed separately.YouTubeWe embed videos using YouTube Privacy-Enhanced Mode (youtube-nocookie.com). Data is processed by YouTube only after interaction with the embedded video.8. International Data TransfersSome of our service providers, including Google Firebase, Google Analytics, MailerLite, and YouTube, may process personal data outside the European Economic Area (EEA).Where such transfers occur, they are handled in accordance with applicable data protection laws and the safeguards applied by the respective service providers.For more information, please refer to the privacy policies of these providers.9. AnalyticsWith your consent, we use Google Analytics to understand how users interact with our website.This may include information such as:- Pages visited;
- Time spent on pages;
- Device and browser information;
- General usage patterns.You can withdraw your consent at any time via the cookie settings. Our full cookie policy is available here #cookie-policy.10. Embedded Content (YouTube)Our website may include embedded YouTube videos in privacy-enhanced mode.When you interact with such content, YouTube may process personal data according to its own privacy policy.We do not control this processing.11. Data RetentionWe retain personal data only for as long as necessary for the purposes described in this policy.- Accounts: retained while active; may be deleted after subscription ends or upon request; accounts may be deleted within approximately one month after the expiration of the subscription period.
- Calculation data: retained until deleted or until the associated account is removed.
- Contact form data: typically retained up to 24 months.
- Newsletter data: retained until consent is withdrawn or unsubscribe occurs.
- Billing data: retained as required by applicable accounting and tax laws.12. SecurityWe apply appropriate technical and organizational measures to protect personal data against unauthorized access, loss, alteration, or disclosure.However, no method of transmission or storage is completely secure.13. Your RightsUnder GDPR, you may have the right to:- Access your data;
- Correct inaccurate data;
- Request deletion of data;
- Restrict processing;
- Object to processing;
- Data portability;
- Withdraw consent;
- Lodge a complaint with a supervisory authority (in Poland: UODO).14. Intended AudienceExSolver is intended for professional and business use. We do not knowingly collect personal data from children.15. Changes to This PolicyWe may update this Privacy Policy from time to time. The updated version will always be published on this page with a revised “Last Updated” date.16. ContactIf you have any questions about this Privacy Policy, please contact:ExSolver
PolandEmail: [email protected]
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#FAQ
Quick answers
1. Are the calculations based on recognized standards and guidelines?
Yes, the calculations are based on the latest available version of the IEC 60079-10-1 standard.2. Is ExSolver available on mobile devices (tablets or smartphones)?
ExSolver was primarily designed as a desktop application and is recommended for desktop use. The app also works on phones and tablets; however, some limitations related to proper interface display may occur on mobile devices.3. Can I access my projects after my subscription expires?
Yes. You can export your projects to your local device and re-import them after renewing your subscription.4. Who is ExSolver intended for?
ExSolver is designed for safety engineers, occupational safety and health inspectors, plant designers, and ATEX specialists involved in the classification of hazardous areas and the explosion risk assessment. Users should be familiar
with IEC 60079-10-1, as the application supports the process but does not replace applicable standards or regulations.5. What if I need to specify a zone for a substance that isn't listed in the software?
We strive to include the most common substances in our core substance database. If you can’t find the substance you’re looking for, you can add it and assign its physical and chemical properties. From now on, every time you launch the app, the new substance will appear in the drop-down list.6. Can I export or save my calculation results?
Yes, you can save your calculation results and return to them at any time via the navigation bar, where your saved work is stored. You can also pause the process of estimating hazardous explosion zones, save your current progress, and continue your work whenever it’s convenient for you.7. Is my data secure and stored privately?
Yes, your data is secure and stored privately. All calculation results, input data, projects, and user-defined substances are accessible only to you and are not visible to other users. We use trusted cloud infrastructure to ensure your data is protected and handled safely.8. Can I generate editable reports?
Yes, the app allows you to generate a PDF report for a specific emission scenario. You can also export an Excel table that includes all defined emission scenarios along with their corresponding results.
#PL
Polish version in progress. Coming soon...
