ReoGrid's licensing model changed with Version 4. In Version 3, ReoGrid was distributed under a free license with certain conditions.
Starting from Version 4, ReoGrid uses a proprietary commercial license to better support commercial use, provide official technical support, and ensure the sustainability of ongoing development.
As a result, License Agreement Ver.4 applies to the current commercial editions, while License Agreement Ver.3 remains available for users of the previous version.
ReoGrid Ver.4 License Agreement
This agreement ("Agreement") is a legal contract between the user ("User") and the provider ("Provider") regarding the use of the software product "ReoGrid V4" ("Software").
Article 1 (Definitions)
"Software" refers to the ReoGrid V4 library and related materials developed and provided by the Provider.
"License Certificate" means the certificate issued by the Provider permitting the use of the Software.
"Project" refers to a series of applications or products developed using the Software, which the User may reasonably define according to their development purposes. This is not limited to physical development units such as those in Visual Studio; multiple applications for the same customer or purpose may be considered a single Project.
"Support Period" means the period during which the Provider offers technical support and Update Versions of the Software to the User. The start date, end date, and scope of the Support Period shall be defined in the License Certificate or separately specified by the Provider.
"Update Version" means any revision of the Software within the same major version, provided for the purpose of defect fixes, compatibility improvements, performance enhancements, or functional improvements (for example, version 4.3.0 to 4.3.10).
"Major Version" means the first numeric digit of the version number (for example, the "4" in version 4.x). Any change of Major Version (for example, from Version 4 to Version 5) shall be treated as a separate product.
Article 2 (Grant of License)
The Provider grants the User a non-exclusive, non-transferable right to use the Software for application development purposes in accordance with the terms of this Agreement.
The User shall use the Software based on the License Certificate issued by the Provider.
Article 3 (Scope of License)
The User may incorporate the Software into applications they develop.
The User does not need to re-license the Software to end users of their developed applications.
The User may not redistribute, transfer, or sublicense the Software to third parties.
However, delivering or providing applications developed using the Software to clients or end customers does not constitute redistribution or re-licensing of the Software and is permitted.
The "License" in this Article means the right to use the Software for development purposes and does not require individual license purchases or permissions for application users.
Article 4 (Prohibited Acts)
The User shall not:
Disassemble, decompile, reverse engineer, or modify all or part of the Software.
Illegally use, copy, or redistribute the Software.
Transfer or disclose the License Certificate to third parties.
Article 5 (Intellectual Property Rights)
All copyrights and other intellectual property rights related to the Software belong to the Provider or its licensors.
Article 6 (Support and Update Versions)
The Provider shall provide technical support for the Software only during the Support Period. The method of support (such as email) and its scope shall be defined in the License Certificate or separately specified by the Provider.
The Provider shall provide Update Versions of the Software free of charge only during the Support Period.
After the expiration of the Support Period, the Provider shall have no obligation to provide Update Versions or technical support.
Notwithstanding the foregoing, if a material defect, as reasonably determined by the Provider, is discovered within six (6) months from the date of purchase and renders the Software substantially unable to perform its ordinary intended functions, and the User provides reasonable information regarding such defect, the Provider shall, within a reasonable scope, provide a corrective revision (which may include an Update Version).
Update Versions do not include products involving a change of Major Version, which require a separate license purchase.
Article 7 (Disclaimer)
The Provider does not guarantee that the Software is suitable for the User's specific purposes.
The Provider shall not be liable for any direct or indirect damages arising from the use or inability to use the Software.
Article 8 (Term and Termination)
This Agreement becomes effective when the User uses the Software.
If the User violates any terms of this Agreement, the Provider may terminate this Agreement without notice.
Article 9 (Governing Law and Jurisdiction)
This Agreement shall be governed by the laws of Japan, and the Sapporo District Court shall have exclusive jurisdiction as the court of first instance for all disputes arising from this Agreement.
Supplementary Provision: This Agreement shall take effect from April 1, 2025. UNVELL Inc.
ReoGrid 4 Trial License Policy
Trial Period
The provided trial version may be used for 30 days from the date of your request.
Purpose of Use
The trial version is intended solely for evaluation and testing purposes. It may not be used for product development or inclusion in commercial projects.
Post-Trial Handling
Please delete the provided DLL and related files in any of the following cases:
When the 30-day trial period has expired
If you decide not to purchase the full version
After purchasing the full version and replacing the trial DLL with the official one
Prohibited Actions
Distributing, transferring, or reselling the trial version to third parties
Using the trial version in production or commercial projects
Reverse engineering, decompiling, or modifying the trial version
Disclaimer
The trial version is provided "as is" without any warranties regarding functionality or results.
Technical support is not included with the trial version.
We are not responsible for any issues, damages, or loss of profits resulting from the use of the trial version.
Other
This policy is subject to change without prior notice.
ReoGrid License Agreement (Ver.3)
This agreement applies to ReoGrid Ver.3. For the license agreement for Ver.4, please see the tab.
UNVELL Inc. (hereinafter referred to as "UNVELL") grants the customer (whether a corporation or an individual) the right to use the software provided by download or other means and installed (hereinafter referred to as "the Software") under the following conditions.
By using this product, you are deemed to have agreed to all the terms of the agreement below.
Article 1 (Copyright) The intellectual property rights, including copyrights, related to the Software belong to UNVELL or are properly licensed from third parties. The Software is protected by the copyright laws of Japan and other countries, as well as related treaties.
Article 2 (Grant of Rights) The customer acquires a non-exclusive right to use the Software in accordance with the terms of this agreement. The customer may install and use the Software on the HDD or other storage devices of their PC. 2) The customer may duplicate the Software for backup or storage purposes.
Article 3 (Restrictions) The customer may not modify, reverse engineer, decompile, or disassemble the Software by any means. However, this does not apply if permitted by law. 2) Except as expressly permitted in this agreement, the customer may not use or duplicate all or any part of the Software. 3) The customer does not have the right to sublicense the Software and may not sell, lend, or lease the Software to third parties.
Article 4 (Limited Warranty) The Software is provided as-is without any warranty, and UNVELL makes no warranties, express or implied, including but not limited to merchantability or fitness for a particular purpose. Any issues arising from the Software shall be resolved at the customer's responsibility and expense.
Article 5 (Limitation of Liability) UNVELL shall not be liable for any consequential, incidental, or punitive damages under this agreement or any circumstances. The customer shall indemnify and hold UNVELL harmless from any damages, losses, or liabilities related to claims made by third parties in connection with the use of the Software.
Article 6 (Term of Agreement) This agreement becomes effective on the date the customer downloads the Software or installs it on their hardware and remains in effect unless terminated as follows. 2) If the customer breaches any provision of this agreement, UNVELL may immediately terminate this agreement without any notice or demand. In such cases, UNVELL may claim damages incurred due to the breach. Upon termination of this agreement, the customer must immediately destroy the Software stored on their hardware.
Article 7 (Export Control) The customer agrees not to ship, transfer, or export the Software or any information or technology contained therein to countries where Japan or other relevant countries prohibit or restrict such export.
Article 8 (Miscellaneous) This agreement shall be governed by the laws of Japan. Any disputes arising from or related to this agreement shall be resolved exclusively by the Sapporo District Court as the court of first instance.
ReoGrid Web Edition License Agreement
This document describes the license terms for the ReoGrid Web Edition software library, covering both the Lite (Free) and Pro (Commercial) editions.
ReoGrid Web Lite — Free Use License Agreement
This agreement ("Agreement") is a legal contract between the user ("User") and UNVELL Inc. ("Provider") regarding the use of the software product "ReoGrid Web Lite" ("Software"), distributed as @reogrid/lite.
Article 1 (Definitions)
"Software" refers to the ReoGrid Web Lite library distributed by the Provider via npm or other distribution channels.
"Provider" means UNVELL Inc., the developer and rights holder of the Software.
Article 2 (Grant of License)
The Provider grants the User a non-exclusive, non-transferable, royalty-free right to use the Software in accordance with the terms of this Agreement.
The User may use the Software for both personal and commercial purposes without purchasing a separate license.
The User may incorporate the Software into applications they develop and distribute those applications to end users.
Article 3 (Feature Limitations)
The Lite edition is limited to a maximum of 100 rows and 26 columns (A–Z).
Formula support is limited to basic arithmetic and cell references. Built-in functions (e.g., SUM, IF, AVERAGE) are not available.
XLSX export is not supported. XLSX import is available.
Certain advanced features — including but not limited to cell types, auto-filtering, sorting, row/column grouping, and image embedding — are not available.
Article 4 (Prohibited Acts)
The User shall not:
Disassemble, decompile, reverse engineer, or modify all or part of the Software.
Redistribute the Software as a standalone library or component. Distributing applications that incorporate the Software is permitted.
Remove or alter any copyright notices, trademarks, or proprietary markings contained in the Software.
Circumvent or attempt to bypass any feature limitations built into the Lite edition.
Article 5 (Intellectual Property Rights)
All copyrights and other intellectual property rights related to the Software belong to the Provider.
The Software is proprietary and closed source. This Agreement does not grant the User any rights to the source code of the Software.
Article 6 (No Support)
The Lite edition is provided without official technical support.
The Provider is under no obligation to provide bug fixes, updates, or maintenance for the Lite edition, although the Provider may do so at its discretion.
Article 7 (Disclaimer)
The Software is provided "as is" without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose, and noninfringement.
The Provider shall not be liable for any direct, indirect, incidental, special, or consequential damages arising from the use or inability to use the Software.
Article 8 (Term and Termination)
This Agreement becomes effective when the User installs or uses the Software.
If the User violates any terms of this Agreement, the Provider may terminate this Agreement without notice, and the User must cease all use of the Software.
Article 9 (Governing Law and Jurisdiction)
This Agreement shall be governed by the laws of Japan, and the Sapporo District Court shall have exclusive jurisdiction as the court of first instance for all disputes arising from this Agreement.
Supplementary Provision: This Agreement shall take effect from April 1, 2025. UNVELL Inc.
ReoGrid Web Pro — Commercial License Agreement
This agreement ("Agreement") is a legal contract between the user ("User") and UNVELL Inc. ("Provider") regarding the use of the software product "ReoGrid Web Pro" ("Software"), distributed as @reogrid/pro.
Article 1 (Definitions)
"Software" refers to the ReoGrid Web Pro library and related materials developed and provided by the Provider.
"License Key" means the key issued by the Provider permitting the use of the Software on registered domains.
"Registered Domain" means a domain name registered by the User with the Provider for the purpose of license validation. The Software performs online or offline license authentication against these registered domains.
"Support Period" means the period during which the Provider offers technical support and Update Versions of the Software to the User. The start date, end date, and scope of the Support Period shall be defined in the license purchase confirmation or separately specified by the Provider.
"Update Version" means any revision of the Software within the same major version, provided for the purpose of defect fixes, compatibility improvements, performance enhancements, or functional improvements.
"Major Version" means the first numeric digit of the version number. Any change of Major Version shall be treated as a separate product requiring a new license.
Article 2 (Grant of License)
The Provider grants the User a non-exclusive, non-transferable, perpetual right to use the Software in accordance with the terms of this Agreement and the edition purchased.
The User shall activate the Software using the License Key issued by the Provider.
The license is perpetual for the purchased version — the User may continue using the Software after the Support Period expires, but will not receive updates or support beyond that period.
Article 3 (Editions and Scope of License)
The Software is available in two commercial editions:
(a) Web Pro Edition
The User may deploy the Software on up to three (3) Registered Domains.
License validation is performed via online authentication against the Provider's servers.
The User may incorporate the Software into web applications they develop and deploy on the Registered Domains.
The User may not redistribute, sublicense, or resell the Software or the License Key to third parties.
(b) Web Enterprise Edition
The User may deploy the Software on an unlimited number of domains.
License validation may be performed via an offline license file, enabling use in intranet or air-gapped environments.
The User is granted OEM and redistribution rights: the Software may be embedded in products sold or distributed to third parties, provided the Software is not marketed as a standalone spreadsheet component.
The User may deploy the Software in intranet and air-gapped environments without external network connectivity.
Article 4 (License Validation)
The Software includes a license validation mechanism. For the Web Pro edition, this requires periodic online verification against the Provider's license server. For the Web Enterprise edition, an offline license file may be used as an alternative.
If the License Key is invalid, expired, or cannot be validated, the Software may restrict functionality to the feature set of the Lite edition (100 rows, 26 columns, no XLSX export).
The User shall not circumvent, disable, or tamper with the license validation mechanism.
Article 5 (Prohibited Acts)
The User shall not:
Disassemble, decompile, reverse engineer, or modify all or part of the Software, including but not limited to the license validation mechanism.
Illegally use, copy, or redistribute the Software or the License Key.
Transfer or disclose the License Key to unauthorized third parties.
Use the Software on domains that are not registered with the Provider (Web Pro edition).
Remove or alter any copyright notices, trademarks, or proprietary markings contained in the Software.
Article 6 (Intellectual Property Rights)
All copyrights and other intellectual property rights related to the Software belong to the Provider or its licensors.
This Agreement does not transfer ownership of the Software to the User; it grants only a right of use as specified herein.
Article 7 (Support and Update Versions)
The Provider shall provide technical support for the Software only during the Support Period. The method of support (such as email) and its scope shall be defined in the purchase confirmation or separately specified by the Provider.
The Provider shall provide Update Versions of the Software free of charge only during the Support Period.
After the expiration of the Support Period, the Provider shall have no obligation to provide Update Versions or technical support.
Notwithstanding the foregoing, if a material defect, as reasonably determined by the Provider, is discovered within six (6) months from the date of purchase and renders the Software substantially unable to perform its ordinary intended functions, the Provider shall, within a reasonable scope, provide a corrective revision.
Update Versions do not include products involving a change of Major Version, which require a separate license purchase.
Article 8 (Disclaimer)
The Provider does not guarantee that the Software is suitable for the User's specific purposes.
The Provider shall not be liable for any direct, indirect, incidental, special, or consequential damages arising from the use or inability to use the Software, including but not limited to loss of data, loss of profits, or business interruption.
The Provider does not guarantee uninterrupted availability of the license validation server. Temporary unavailability of the server shall not constitute a breach of this Agreement, and the Software includes an offline grace period to accommodate such situations.
Article 9 (Term and Termination)
This Agreement becomes effective when the User activates the Software with a valid License Key.
If the User violates any terms of this Agreement, the Provider may terminate this Agreement and revoke the License Key without notice.
Upon termination, the User must cease all use of the Software and delete all copies in their possession.
Article 10 (Governing Law and Jurisdiction)
This Agreement shall be governed by the laws of Japan, and the Sapporo District Court shall have exclusive jurisdiction as the court of first instance for all disputes arising from this Agreement.
Supplementary Provision: This Agreement shall take effect from April 1, 2025. UNVELL Inc.
