Privacy Policy
This Privacy Policy is meant to help you understand what information we collect, why we collect it, and how you can update, manage, export, and delete your information.
Last updated: December 18, 2025
Privacy Policy
Introduction
This Privacy Policy describes our policies and procedures on the collection, use, and disclosure of your information when you use the Service and explains your privacy rights and how the law protects you. We use your personal data to provide and improve the Service. By using the Service, you agree to the collection and use of information in accordance with this Privacy Policy.
Interpretation and Definitions
Interpretation
The words with initial capital letters have meanings defined under the following conditions. The following definitions shall have the same meaning regardless of whether they appear in singular or plural.Definitions
For the purposes of this Privacy Policy:- Account means a unique account created for you to access our Service or parts of our Service.
- Affiliate means an entity that controls, is controlled by, or is under common control with a party, where “control” means ownership of 50% or more of the shares, equity interest, or other securities entitled to vote for election of directors or other managing authority.
- Application refers to Gflow+, the software program provided by the Company.
- Company (referred to as either “the Company”, “We”, “Us” or “Our” in this Agreement) refers to Gflow Instruments Co. Ltd., Caoyang Industrial Park House A5, 1340 Jinshangjiang Road, Putuo, Shanghai 200333.
- Device means any device that can access the Service, such as a computer, cellphone, or digital tablet.
- Personal Data is any information that relates to an identified or identifiable individual.
- Service refers to the Application.
- Service Provider means any natural or legal person who processes data on behalf of the Company. It refers to third-party companies or individuals employed by the Company to facilitate the Service, provide the Service on behalf of the Company, perform Service-related tasks, or assist the Company in analyzing how the Service is used.
- Usage Data refers to data collected automatically, either generated by the use of the Service or from the Service infrastructure itself (for example, the duration of a page visit).
- You means the individual accessing or using the Service, or the company or other legal entity on whose behalf such individual is accessing or using the Service, as applicable.
Free App Information
Gflow+ is provided completely free of charge. There are:- No purchase price — free download from the App Store
- No in-app purchases — all features are included
- No subscriptions — no recurring fees
- No advertisements — we do not show ads or promotional content
- No data selling — we do not sell user data to third parties
Account Requirement
While the app is free, access requires a valid username and password provided by Gflow Instruments or your organization. This ensures only authorized users can configure and manage industrial flow-measurement devices.Collecting and Using Your Personal Data
What We Collect (for Service Provision Only)
- Account Data: Username, encrypted password, organization information
- Device Data: Flowmeter configurations, calibration settings, measurements
- Technical Data: App usage logs, connection history, error reports
What We Do Not Collect
- No payment information (app is free)
- No advertising identifiers
- No location-tracking data (unless you explicitly grant location permission)
- No personal contact information (unless provided by your organization)
Use of Your Personal Data
The Company may use Personal Data for the following purposes:- To provide and maintain our Service, including monitoring usage of the Service.
- To manage your Account and provide registered-user functionality.
- For the performance of a contract: development, fulfillment, and execution of the purchase contract for products, items, or services you have purchased or any other contract with us through the Service.
- To manage your requests to us.
- For business transfers such as mergers, restructuring, or asset sales, where Personal Data may be among transferred assets.
- For other purposes including data analysis, identifying usage trends, and improving the Service.
Retention of Your Personal Data
The Company will retain your Personal Data only for as long as necessary for the purposes set out in this Privacy Policy. We will retain and use your Personal Data as required to comply with legal obligations, resolve disputes, and enforce our agreements and policies. Usage Data is retained for a shorter period unless used to improve security or functionality or required by law.Transfer of Your Personal Data
Your information, including Personal Data, may be transferred to and maintained on computers located outside your jurisdiction, where data-protection laws may differ. Your consent to this Privacy Policy represents your agreement to this transfer.Delete Your Personal Data
You have the right to delete or request deletion of the Personal Data we have collected about you. The Service may allow you to delete certain information directly. You may also update or delete your information via your Account settings or by contacting us. We may retain certain information where required by law.Disclosure of Your Personal Data
Business Transactions
If the Company is involved in a merger, acquisition, or asset sale, your Personal Data may be transferred. We will notify you before that occurs.Law Enforcement
The Company may disclose your Personal Data if required by law or in response to lawful requests by public authorities.Other Legal Requirements
The Company may disclose your data in good faith when necessary to:- Comply with a legal obligation
- Protect and defend the rights or property of the Company
- Prevent or investigate wrongdoing connected with the Service
- Protect the personal safety of users or the public
- Protect against legal liability
Security of Your Personal Data
We use commercially reasonable means to protect your Personal Data, but no method of electronic transmission or storage is 100% secure.How We Use Your Data
| Purpose | Data Used | Legal Basis |
|---|---|---|
| Provide app functionality | Account data, device configurations | Contractual necessity |
| Store and retrieve meter data | Meter data and measurements | Legitimate interest (service provision) |
| Improve app performance | Anonymous usage statistics, crash reports | Legitimate interest (app improvement) |
Data Storage & Security
All data is stored on Gflow Instruments’ proprietary servers. We do not use third-party cloud services for user-data storage.Your Rights
As a user, you have the right to:- Access your stored data through the app
- Export your configurations and measurements
- Request correction of inaccurate data
- Request account deletion (contact your organization administrator)