Last updated: October 7, 2026
This Privacy Policy explains how YarnStack ("YarnStack", "we", "us", or "our") collects, uses, stores, and protects information when you use the YarnStack mobile application.
YarnStack is a crochet and yarn project management application that helps users track crochet projects, record materials and project costs, track working time, and calculate project value and pricing.
By using YarnStack, you agree to the practices described in this Privacy Policy.
1. Information We Collect
The information YarnStack collects depends on how you use the app.
1.1 Information Stored Locally
YarnStack allows users to use the app without creating an account.
When using YarnStack without an account, project information may be stored locally on your device. This may include:
Project names
Project descriptions and notes
Project status
Yarn information, including yarn type, color, weight, and cost
Hook size
Pattern information
Project photos selected by the user
Time spent working on a project
Material costs
Other information entered into the app for calculating project value or pricing
This locally stored information remains on your device unless you delete it, uninstall the app, or otherwise clear the app's stored data.
Some features, such as cloud backup and synchronization, may require a YarnStack account.
If you create an account, we may collect information such as:
We do not require users to create an account simply to use the basic local project-management features of YarnStack.
1.3 Cloud-Synchronized Project Data
If you enable cloud backup or synchronization, information that you choose to back up may be transmitted to and stored on our cloud infrastructure.
This may include:
Crochet project information
Yarn and material information
Project costs and pricing information
Time-tracking information
Project photos
Other project data you choose to synchronize
Cloud-synchronized data is used to provide backup and synchronization across supported devices.
2. How We Use Information
We use information collected through YarnStack to:
Provide and operate the app
Store and manage your crochet projects
Provide project time-tracking functionality
Calculate project costs and pricing
Provide cloud backup and synchronization when enabled
Authenticate users who create accounts
Maintain and improve the app
Detect, prevent, and address technical problems or misuse
Comply with applicable legal obligations
We do not sell your personal information.
3. Photos and Device Storage
YarnStack may allow you to select or capture photos for use with your crochet projects.
Photos are used to provide project-management functionality. If cloud backup or synchronization is enabled, photos associated with synchronized projects may be uploaded to our cloud storage.
YarnStack does not access photos from your device except when you choose to provide them to the app through supported photo-selection or camera functionality.
4. Internet and Network Access
YarnStack may use an internet connection when account, cloud backup, synchronization, authentication, or other online features are used.
Basic local functionality may continue to work without an internet connection where supported.
We may use third-party service providers to operate YarnStack and provide services such as:
User authentication
Cloud database and data storage
Cloud file storage
Application infrastructure
Crash reporting or technical diagnostics, if enabled
Payment and subscription processing
These service providers may process information on our behalf and are expected to use it only as necessary to provide their services.
We do not sell or rent user information to third parties.
6. Pro Subscriptions and Payments
YarnStack may offer optional paid features or subscriptions.
Payments and subscription management may be handled through the applicable app store or payment service provider. We do not receive or store your complete payment card information.
The relevant payment provider may process information necessary to complete purchases, manage subscriptions, and verify purchase status.
We may share information only when reasonably necessary to:
Provide YarnStack's features and services
Provide cloud backup and synchronization
Process subscriptions and purchases
Operate and maintain our infrastructure
Comply with applicable laws or legal processes
Protect the security, rights, and safety of YarnStack, its users, or others
We do not sell personal information to advertisers or other third parties.
We take reasonable technical and organizational measures to protect information handled by YarnStack against unauthorized access, loss, misuse, alteration, or disclosure.
However, no method of electronic storage or transmission over the internet can be guaranteed to be completely secure.
Locally stored project information remains on your device until you delete it, clear the app's data, or uninstall YarnStack.
For users who use cloud backup or synchronization, information may remain associated with their account until it is deleted by the user or deletion is otherwise requested or required.
Some information may be retained for a reasonable period where necessary for security, fraud prevention, legal compliance, dispute resolution, or legitimate business purposes.
10. Account and Data Deletion
YarnStack users who have created an account may request deletion of their account and associated data.
To request account deletion, send an email to okworoanna@gmail.com with the subject line "YarnStack Account Deletion Request". Please include the email address associated with your YarnStack account so that we can identify the account.
When we process an account deletion request, we will delete the user's account and associated cloud data, including cloud-synchronized crochet projects, project information, and project photos associated with the account.
Information stored locally on the user's device is not automatically deleted when a cloud account is deleted. Users can remove locally stored YarnStack data through the app or by uninstalling the application.
Some information may be retained for a limited period where necessary to comply with legal obligations, resolve disputes, prevent fraud or abuse, or maintain security. Any information retained for these purposes will be deleted when the applicable retention requirement no longer applies.
Account deletion is permanent and cannot be undone.
YarnStack is a general-purpose application and is not directed toward children.
We do not knowingly collect personal information from children in violation of applicable laws.
If you believe that a child has provided personal information to YarnStack in a manner that violates applicable law, please contact us so that we can take appropriate action.
YarnStack may rely on third-party services to provide functionality such as authentication, cloud storage, database services, analytics, crash reporting, or subscription management.
Those services may process information according to their own privacy policies.
Where applicable, users should also review the privacy policies of the third-party services used by YarnStack.
13. Changes to This Privacy Policy
We may update this Privacy Policy from time to time to reflect changes to YarnStack, our services, or applicable legal requirements.
When we make changes, we will update the "Last updated" date at the beginning of this Privacy Policy.
We encourage users to periodically review this Privacy Policy.
If you have questions, concerns, or requests regarding this Privacy Policy or how YarnStack handles information, please contact us through the contact information provided in the YarnStack app or on the official YarnStack website.
YarnStack
Privacy Policy
Last updated: October 7, 2026