Terms of Use

TERMS OF USE

BuildCalc: Material Planner - Effective: June 26, 2026 - Last updated: June 26, 2026

Please read this. BuildCalc gives you construction estimates to help you plan. It is a planning aid, not professional engineering advice, and the numbers it produces must always be checked before you buy materials or build. By using the App you accept these Terms.

1. Acceptance of these Terms

These Terms of Use ("Terms") are a binding agreement between you and Serhii Tykhonenko ("we," "us," the "Developer") governing your use of the BuildCalc: Material Planner application and its features (the "App"). By downloading, installing or using the App, you confirm that you have read, understood and agree to these Terms and to our Privacy Policy. If you do not agree, do not use the App.

2. About BuildCalc

BuildCalc is a construction material calculator and planning tool for iPhone and iPad. It offers calculators for concrete, framing, roofing, drywall, tiling, landscaping and more, along with 3D previews, AR measuring, a cut optimizer, project and shopping-list tracking, and estimate export. The App is designed to run on your device; it does not require an account and works offline.

3. Eligibility and age

You must be at least 13 years old (or 16 in the European Economic Area and the United Kingdom) to use the App. If you are under the age of majority where you live, you may use the App only with the involvement and consent of a parent or legal guardian, who agrees to be bound by these Terms on your behalf.

4. License grant and restrictions

We grant you a limited, personal, non-exclusive, non-transferable, revocable license to install and use the App on Apple devices you own or control, for your own personal or internal business use, in accordance with the Apple App Store Terms of Service. You may not: (a) copy, resell, rent, sublicense or commercially redistribute the App; (b) reverse engineer, decompile or disassemble it except where such restriction is prohibited by law; (c) remove any proprietary notices; or (d) use the App in any unlawful way or to build a competing product.

5. Important estimates & construction disclaimer

BuildCalc provides ESTIMATES for planning purposes only. Results depend entirely on the information you enter and on general assumptions, standard coverage rates and rounding. They may not reflect your actual site conditions, product specifications, waste, cuts, code requirements, or supplier packaging.

You are solely responsible for independently verifying every quantity, measurement and material before you purchase, order or build. The App is not a substitute for professional judgment. For any structural, load-bearing, electrical, plumbing, permitting or safety-critical work, you must consult a qualified, licensed professional (such as an engineer, architect or licensed contractor) and comply with all applicable building codes, manufacturer instructions and local regulations.

We are not responsible for over-ordering or under-ordering materials, wasted materials or cost, project delays, structural failures, personal injury, property damage, code violations, or any other outcome resulting from reliance on the App's output. Always confirm critical figures independently.

6. The Service and changes to it

We may add, change, suspend or remove features of the App at any time, with or without notice, and we may release updates that you may need to install to keep the App working. We are not obligated to maintain any particular feature, calculator or data set.

7. Subscriptions, purchases and billing

The App is free to download and includes a large set of free calculators. Additional calculators and pro tools are available through an optional "BuildCalc Pro" upgrade, offered as an auto-renewable subscription (for example, monthly or yearly, the yearly plan including an introductory free trial) or as a one-time, non-consumable lifetime purchase. Prices are shown in the App before you buy.

    - All purchases are processed by Apple through In-App Purchase and charged to your Apple Account at confirmation.

    - Subscriptions renew automatically for the same period and price unless you cancel at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings.

    - If a free trial is offered, any unused portion is forfeited when you purchase a subscription, where applicable.

    - The lifetime purchase is a one-time payment for the current app and does not auto-renew.

    - Payments, taxes, receipts and refunds are handled by Apple under Apple's terms; we cannot issue refunds directly. Refund requests are made through Apple.

8. Future pricing and features

We may change the price of the App or of any in-app purchase, and we may change which features are free or paid, on a going-forward basis. Changes to an active subscription price take effect as permitted by Apple and applicable law, and you will be given the choice to accept or cancel where required. Changes never affect a purchase you have already completed.

9. Your content and data

You keep all rights to the projects, calculations, prices and lists you create ("Your Content"). Your Content is stored on your device and, if you enable it, synced through your own Apple iCloud account  -  we do not host it. You are responsible for backing up Your Content. We are not liable for any loss of Your Content, including loss caused by device failure, deletion, or changes to iCloud. See our Privacy Policy for details.

10. Acceptable use

You agree not to use the App to violate any law; to rely on it as the sole basis for safety-critical decisions; to interfere with or circumvent its security or licensing; or to misrepresent the App's output as certified professional advice. You are responsible for how you use the estimates the App provides.

11. Intellectual property

The App, including its software, design, text, graphics, icon, calculators and compiled data, is owned by the Developer and protected by intellectual-property laws. Except for the limited license in Section 4, no rights are granted to you. If you send us feedback or suggestions, you grant us a perpetual, royalty-free license to use them without obligation to you.

12. Third-party materials and links

The App may reference third-party standards, product data or links. We do not control and are not responsible for third-party content, products or services, and reference to them is not an endorsement. Your dealings with any third party are solely between you and that party.

13. Disclaimer of warranties

THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE APP WILL BE UNINTERRUPTED OR ERROR-FREE, OR THAT ANY ESTIMATE, CALCULATION OR RESULT WILL BE ACCURATE, COMPLETE OR SUITABLE FOR YOUR PURPOSE. Some jurisdictions do not allow the exclusion of certain warranties, so some of the above may not apply to you.

14. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE DEVELOPER WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS, MATERIALS, DATA, TIME OR GOODWILL, ARISING OUT OF OR RELATING TO YOUR USE OF, OR INABILITY TO USE, THE APP OR ITS ESTIMATES  -  EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE DEVELOPER'S TOTAL LIABILITY FOR ALL CLAIMS RELATING TO THE APP WILL NOT EXCEED THE GREATER OF (A) THE AMOUNT YOU PAID FOR THE APP OR ITS IN-APP PURCHASES IN THE 12 MONTHS BEFORE THE CLAIM, OR (B) US$10.00.

Nothing in these Terms excludes or limits liability that cannot be excluded or limited under applicable law, including your mandatory statutory consumer rights.

15. Indemnification

To the extent permitted by law, you agree to indemnify and hold harmless the Developer from any claims, damages, losses or expenses (including reasonable legal fees) arising out of your misuse of the App, your violation of these Terms, or your reliance on the App's output in violation of Section 5.

16. Term and termination

These Terms apply while you use the App. Your license terminates automatically if you breach them. You may end this agreement at any time by deleting the App. Any active subscription continues (and continues to bill through Apple) until you cancel it separately in your Apple Account settings. Sections that by their nature should survive termination (including Sections 5, 11, 13, 14, 15 and 19) will survive.

17. Apple-specific terms

These Terms are between you and the Developer only, not Apple. Apple is not responsible for the App or its content. Apple has no obligation to provide maintenance or support for the App. In the event of any failure of the App to conform to any applicable warranty, you may notify Apple and Apple will refund the purchase price (if any); to the maximum extent permitted by law, Apple has no other warranty obligation with respect to the App. Apple is not responsible for addressing any claims relating to the App, including product-liability, legal or regulatory claims, or intellectual-property claims, which are the Developer's responsibility as set out in these Terms. Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you. You represent that you are not located in a country subject to a U.S. Government embargo and are not on any U.S. Government restricted-party list.

18. Changes to these Terms

We may update these Terms from time to time. When we do, we will revise the "Last updated" date and post the new version at this address. Your continued use of the App after changes take effect constitutes acceptance of the revised Terms.

19. Governing law and dispute resolution

These Terms are governed by the laws of Ukraine, where the Developer is established, without regard to conflict-of-law rules, and except to the extent the mandatory consumer-protection laws of your country of residence provide you greater protection, which continue to apply. Before starting any formal proceeding, you agree to first contact us and attempt in good faith to resolve the dispute informally for at least 30 days.

20. Miscellaneous

These Terms, together with the Privacy Policy and Apple's applicable terms, are the entire agreement between you and the Developer regarding the App. If any provision is found unenforceable, the remaining provisions stay in effect. Our failure to enforce a provision is not a waiver. You may not assign these Terms; we may assign them in connection with a transfer of the App.

21. Contact

    - Email: galtuh@gmail.com

    - Publisher: Serhii Tykhonenko

    - Website: sites.google.com/view/buildcalc-material-calculator

(c) 2026 Serhii Tykhonenko. BuildCalc: Material Planner. All rights reserved. Apple and iCloud are trademarks of Apple Inc.