Drywall Calculator & Estimator
Last updated: September 27, 2026
These Terms of Use (“Terms”) are a legal agreement between you (“you”) and Uladzislau Yasinski (“we,” “us,” or “our”) for the mobile application Drywall Calculator & Estimator (the “App”), including all updates and related documentation.
By downloading, installing, or using the App, you agree to these Terms. If you do not agree, do not use the App.
Drywall Calculator & Estimator (“Drywall Calc”) helps you estimate drywall (gypsum board / plasterboard) materials: sheet counts with openings and waste, studs and track, screws, joint compound, tape, corner bead, primer and paint, and optional cost quotes. Results are estimates based on common industry rules of thumb and the values you enter.
Estimates are for planning. Verify quantities against manufacturer fastening and finishing schedules, local building and fire codes, and site conditions. The App is not a code-compliance certificate.
The App includes:
Feature names and availability may evolve in updates; the single-room drywall calculation remains available without Pro as stated in the App Store description.
You must be able to form a binding contract in your jurisdiction. If you use the App on behalf of a company, you represent that you have authority to bind that company.
The App is a professional tool. You are responsible for complying with laws, licenses, and site rules that apply to your work.
Subject to these Terms and your compliance with them, we grant you a limited, non-exclusive, non-transferable, revocable license to install and use the App on Apple devices you own or control, as permitted by the Apple Media Services Terms and Usage Rules.
You may not:
The App is distributed through the Apple App Store. Your use of the App is also subject to Apple’s applicable terms, including the Licensed Application End User License Agreement and App Store rules.
Apple is not a party to these Terms and has no obligation to furnish maintenance or support for the App except as required by Apple’s policies. Apple is not responsible for product claims, legal compliance, or intellectual property infringement related to the App.
Drywall Calc Pro is sold as a non-consumable, one-time purchase through Apple (price shown in the App Store at purchase time). There is no subscription.
We do not guarantee that Pro will remain available for sale in all countries at all times.
After you purchase Pro, we will not disable Pro features you already paid for in a way that locks you out of content you created, consistent with our product principles (export and access to your projects should remain available).
You own the job data you enter (project and room names, dimensions, prices, notes, exported PDFs, and project files).
The App stores this data locally on your device unless you export or share it. You are responsible for:
We are not responsible for loss of data caused by device failure, uninstalling the App, or iOS updates if you did not keep a backup.
IMPORTANT — READ CAREFULLY
The App does not replace:
Calculations use formulas and rules of thumb implemented in software. Actual consumption depends on framing layout, sheet orientation, cut waste, finish level, and installer technique. Always verify quantities before ordering and add a margin that fits your job.
WE PROVIDE THE APP “AS IS” FOR INFORMATIONAL AND ESTIMATION PURPOSES. We do not warrant that any installation will pass inspection or meet every edge case in the standards.
You assume full responsibility for purchases, installations, safety, and compliance. Follow OSHA and your employer’s safety program. Fire-rated assemblies must follow the tested design exactly.
The App, including its design, software, bundled tables, text, and trademarks (including Drywall Calculator & Estimator), is owned by us or our licensors and protected by copyright and other laws.
Sheetrock, Gyproc, Gyprock, Rigips, Placo, Knauf and other product names are trademarks of their respective owners. The App is not affiliated with, endorsed by, or certified by any gypsum board manufacturer.
Standard numbers and rule references are used to describe functionality, not to imply sponsorship.
We may release updates that add features, fix bugs, or adjust calculations when code tables change. Some updates may be required for continued use on new iOS versions.
We may modify or discontinue the App or any feature with reasonable notice where practicable (for example, via App Store release notes). If we materially reduce paid functionality you already purchased, we will handle it in good faith consistent with App Store policies and applicable consumer law.
TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE APP AND ALL CONTENT ARE PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, AND NON-INFRINGEMENT.
We do not warrant that the App will be uninterrupted, error-free, or free of harmful components.
Some jurisdictions do not allow exclusion of certain warranties; in those jurisdictions, our liability is limited to the greatest extent permitted by law.
TO THE MAXIMUM EXTENT PERMITTED BY LAW:
These limits apply whether the claim is based in contract, tort, negligence, strict liability, or otherwise.
Nothing in these Terms limits liability where law forbids it (for example, fraud or gross negligence in some jurisdictions).
You agree to defend, indemnify, and hold harmless us from claims, damages, and expenses (including reasonable legal fees) arising from:
These Terms remain in effect while you use the App. We may terminate or suspend your license if you materially breach these Terms.
You may stop using the App at any time by uninstalling it. Sections that by nature should survive (disclaimers, limitation of liability, indemnity, governing law) survive termination.
You represent that you are not located in a country subject to comprehensive U.S. sanctions or on a restricted party list, and that you will comply with applicable export control laws.
These Terms are governed by the laws of Poland, without regard to conflict-of-law rules, except where mandatory consumer protection laws in your country of residence give you non-waivable rights.
If you are a consumer in the European Union, you may also bring claims in the courts of your country of residence where EU law allows.
Before formal proceedings, you agree to contact support@drywall.aeoriaapps.com to try to resolve the dispute informally within 30 days.
We may update these Terms. The “Last updated” date will change when we do. Continued use after updates constitutes acceptance. If you do not agree, stop using the App and uninstall it.
Uladzislau Yasinski
Email: support@drywall.aeoriaapps.com
App: Drywall Calculator & Estimator (com.fieldtools.drywall)
These Terms are aligned with the Drywall Calculator & Estimator product. They are not a substitute for advice from a qualified attorney in your jurisdiction.