Terms of Use and User Agreement

This User Agreement and the attached Privacy Policy are entered into between the person using the PrecastX platform ("Platform") ("User") and the company whose information is provided below ("Company"). COMPANY INFORMATION: Company Name: SumerLabs Yazılım Teknoloji İnşaat Sanayi ve Ticaret Limited Şirketi Address: Tunhan Mh. 237.Sk Süteks Sit. No:1E/4 Etimesgut/ANKARA, Turkey Tax Office / Tax ID: Etimesgut Tax Office / 7830855807 Authorized Person: Ahmet SÜMER Phone: +90 553 436 96 80 Email: sumer682003@yahoo.com USER: The natural or legal person who registers on the PrecastX platform and uses the platform and/or IoT devices. In the remainder of this Agreement, the User and the Company shall be referred to individually as "Party" and collectively as "Parties" where necessary.

As used in this agreement: • Platform: The entirety of the web application, mobile application, cloud infrastructure named PrecastX, and all products and services offered in connection therewith. • Mobile Application: The PrecastX mobile application running on iOS and Android operating systems. • Web Application: The web-based dashboard accessible via the precastx.com domain. • Device (PX-Sens): The wireless PrecastX sensor device that measures temperature within concrete. • Gateway (PX-Base): The central communication device that collects sensor data and transmits it to the cloud infrastructure. • Sensor Data: Thermocouple temperature readings, ambient temperature, humidity, battery status, and other telemetry data collected by devices. • Reading Session: The data collection period from the start to the end of a specific concrete curing process. • Content: All data including files, text, graphics, images, sensor data, reports, and any other data owned by the Company or shared by users through the platform. • System Access Tools: Information known only to the User, such as email, password, tokens providing access to the platform and account management page. • Communication Channels: Communication tools such as push notifications, email, SMS, and in-app notifications. • Firmware: The operating software of the devices.

3.1. This agreement is prepared and entered into for the purpose of determining the conditions regarding the platform, IoT devices, and content uploaded by the User, as well as the rights and obligations of the parties. 3.2. The subject of this agreement constitutes the current platform, IoT devices, all products and services that may be offered by the Company in the future, the conditions for benefiting from these products and services, and the mutual rights and obligations of the parties. All statements and regulations regarding services, usage, content, and users carried out by the Company through the platform shall be considered an integral part of this Agreement. 3.3. By accepting the provisions of this agreement, the User also accepts all statements made by the Company regarding usage, membership, and services within the platform.

4.1. The User agrees to act in compliance with all terms in this agreement, the rules stated on the platform, and all applicable legislation when using the products or services on the platform. 4.2. The User shall have the right to use free content and services after completing registration, and paid content and services after completing the purchase process. 4.3. By using the platform and giving electronic consent to this agreement, the User acknowledges that the service conditions specified in the agreement are binding. It is assumed that the User is at least 18 years old, or if under 18, has obtained permission from their legal guardian. 4.4. Platform access is performed through one of the following methods: Sign in with Google, Sign in with Apple, email/password, magic link, or phone verification (OTP). The User is responsible for maintaining the confidentiality and security of their account. The User shall immediately notify the Company of any unauthorized use or security breach. 4.5. The User acknowledges and undertakes not to upload any content containing violence, insult, harassment, discrimination, or illegal content, and not to share personal or confidential information belonging to themselves or others. In case of violation, the Company may suspend the User's account without warning or terminate the agreement and delete the account. 4.6. The Company shall store and use the information and data shared by the User within the scope of the Privacy Policy, which constitutes an annex to this Agreement. 4.7. The User may not assign or transfer their account or the rights and responsibilities arising from this Agreement and the use of the platform to any third party. 4.8. The Company shall not be responsible for interruptions or disruptions that may occur on the platform due to force majeure, internet outages, connectivity issues, usage errors, or reasons related to the User's device or operating system version.

5.1. PrecastX IoT devices (PX-Sens sensors and PX-Base gateway devices) are professional industrial equipment designed for monitoring concrete curing processes. The User agrees to use the devices only for their intended purposes and in accordance with the user manual. 5.2. The User is responsible for the proper placement of sensor probes in concrete, the use of devices in suitable environmental conditions, and their maintenance. 5.3. While the Company exercises maximum care regarding the accuracy of sensor data, the User acknowledges that deviations may occur in the data due to measurement precision, environmental factors, connectivity interruptions, or device malfunctions. It is recommended to verify sensor data with independent sources for critical engineering decisions. 5.4. Device firmware may be updated remotely by the Company. These updates may include security patches, performance improvements, and new features. The User acknowledges that firmware updates may temporarily affect device functionality. 5.5. Warranty conditions for devices are specified in the warranty certificate delivered with the device. The warranty does not cover damage resulting from improper use, unauthorized intervention, use in unsuitable environmental conditions, or normal wear and tear. 5.6. The User may not under any circumstances reverse engineer the devices, modify the firmware, make unauthorized modifications to the device, or tamper with the internal components of the device.

6.1. Registration on the PrecastX platform is free. However, the Company reserves the right to change or remove features offered for free, or to offer part or all of the platform to the User on a paid basis in the future. 6.2. All prices are listed in Turkish Lira (TRY) and include VAT unless otherwise stated. Payment can be made via Visa and Mastercard branded credit cards, debit cards, or bank transfer. Card payments are processed securely through the iyzico payment infrastructure with 256-bit SSL/TLS encryption. 6.3. The Company reserves the right to make changes to fees and payment conditions for products and services. Any changes will be announced through the platform. Changes do not affect orders already placed. 6.4. Right of Withdrawal for Hardware Products: Under Consumer Protection Law No. 6502, the User may exercise the right of withdrawal within 14 days of the delivery date without stating any reason. The product must be returned unused, undamaged, and in its original packaging. The Company shall process the refund within 14 days of receiving the returned product. 6.5. Right of Withdrawal for Digital Content and Platform Access: For digital content sales, the right of withdrawal expires upon commencement of content delivery (purchase confirmation and access to the platform). The User is deemed to have accepted this condition before completing the purchase. 6.6. Exceptions to the Right of Withdrawal: The right of withdrawal does not apply to products customized or personalized for the User, products opened or used after delivery, digital content that has been accessed, and services that have been fully performed. 6.7. In case the User is unable to access a purchased service due to a technical issue, they may request a resolution by contacting sumer682003@yahoo.com.

7.1. The User has the right to request the transfer of their personal data to themselves or to another data controller under KVKK Art. 11. 7.2. The User may request that sensor data, project information, product records, and other content uploaded to the platform be delivered in a machine-readable, commonly used, and structured format (JSON, CSV, etc.) by sending an email to sumer682003@yahoo.com. 7.3. Data portability requests will be concluded within a reasonable period (no later than 30 days) after identity verification.

8.1. The Company does not provide any guarantee that any content or information available on the platform is free from defects, errors, faults, or viruses. 8.2. The Company does not warrant that the use of the platform will be uninterrupted and error-free. While the Company aims for the platform to be accessible and usable 24/7, it provides no guarantee regarding accessibility. 8.3. Sensor data is for informational purposes. The Company does not guarantee the absolute accuracy of sensor data. The User should verify sensor data with independent sources for critical engineering and safety decisions. The Company bears no responsibility for decisions made based on sensor data. 8.4. The User acknowledges that access to and quality of the platform largely depends on the quality of service obtained from the internet service provider, and that the Company bears no responsibility for issues arising from such service quality. 8.5. The User is exclusively responsible for the content uploaded to the platform and the use of the platform. The User acknowledges that the Company is not responsible for any claims and demands by third parties regarding intellectual property violations, content, or platform usage. 8.6. The Company cannot be held responsible for interruptions, malfunctions, or policy changes in the services of third-party service providers (payment infrastructure, cloud services, communication services, etc.).

9.1. All rights, ownership, and interests in the platform, mobile application, web application, firmware, and all their elements belong to the Company and/or are used under license from a third party. No provision in this agreement shall be interpreted as transferring the rights and interests related to the platform to the User. 9.2. The User has no right to copy, modify, reproduce, reverse engineer, decompile, or otherwise access the source code of the platform or device firmware, or to create derivative works from the platform under any circumstances. 9.3. The use of the Company's trade name, brand, service mark, logo, domain name, and other intellectual property rights, and the resale, sharing, distribution, display, and making available to third parties of copyrighted works of platform content and services is not permitted. 9.4. The Company has the right to change the names, forms, and positions of menus, interfaces, and features on the platform.

10.1. The Company shall not be responsible for any disruptions in the use of the platform arising from, including but not limited to, force majeure events such as natural disasters, terrorist attacks, war, fire, flood, earthquake, strikes, lockouts; decisions, orders, and applications of judicial and other competent official authorities; situations caused by third parties; disruptions, technical failures, and/or delays arising from internet service providers; attacks on the platform and system despite the Company's taking necessary information security measures; service interruptions, malfunctions, maintenance or renewal operations, infrastructure provider issues, and power outages. 10.2. During the force majeure period, the rights and obligations of the Parties shall be suspended, and no sanctions shall be applied due to the inability to fulfill the agreement provisions during this period. If the force majeure situation lasts longer than 1 (one) month, the Parties shall have the right to terminate this agreement without incurring any further liability.

11.1. The Company reserves the right to make partial or complete changes to this User Agreement and the attached Privacy Policy, entirely at its own discretion and unilaterally, due to the nature of the products and services offered. 11.2. Changes made by the Company shall be published on the platform in their updated form with the revision date specified. 11.3. If users continue to use the platform after the updated agreement is published, the changes shall be deemed accepted. In case of a material change, the Company shall notify users through appropriate channels. 11.4. It is not possible to change this agreement by the user's unilateral declaration.

12.1. Amicable Resolution: In case of any dispute arising from this Agreement, the Parties shall first attempt to resolve the issue through mutual negotiation. The User may resort to legal remedies if an amicable resolution is not reached within 30 (thirty) days after notifying the dispute in writing to sumer682003@yahoo.com. 12.2. Consumer Arbitration: For disputes of a consumer transaction nature, applications may be made to Consumer Arbitration Committees within the monetary limits determined under Law No. 6502. 12.3. Applicable Law: Turkish Law shall apply to the interpretation and application of this User Agreement and the attached Privacy Policy, and to the resolution of any disputes that may arise between the parties. 12.4. Competent Court: Ankara Courts and Enforcement Offices are designated as competent for the resolution of any disputes arising from this Agreement.

13.1. This Agreement, consisting of 14 (fourteen) articles, shall enter into force upon the user's electronic acceptance and shall remain in effect unless terminated by either party. 13.2. Either party may terminate this Agreement at any time without stating any reason by providing written notice to the other party's registered email address 1 (one) week in advance. 13.3. If either party fails to fulfill its obligations under this Agreement or acts unlawfully, and the violation is not remedied within 15 days despite written notice by the other party, the Agreement may be terminated. In case the violation is committed by the User, the Company shall have the right to suspend the account until the violation is remedied. 13.4. Termination of the Agreement does not eliminate the rights and obligations of the Parties that have arisen up to the date of termination.