MakerMargin — Know what every piece earns.
Effective: May 22, 2026MakerMargin (also known as "匠价本") is developed and published by NeoSura. This privacy policy explains how we handle information when you use the MakerMargin iOS application.
MakerMargin is an offline-first tool. All the data you create — materials, products, recipes, sales records, notes, and pricing — is stored locally on your device using Apple's file system. This data never leaves your device unless you explicitly export it as a CSV file.
We do not collect, transmit, or have access to your business data.
MakerMargin may send limited, anonymous event data to a server operated by NeoSura to help us understand general app usage patterns and improve the product. These events include:
The following technical metadata is included with each event:
| Field | Purpose | Identifies You? |
|---|---|---|
| Randomly generated device ID | Distinguish unique installs | No — randomly generated, not linked to personal identity |
| App version | Track adoption of updates | No |
| iOS version | Compatibility monitoring | No |
We do not collect your name, email address, device serial number, advertising identifier (IDFA), precise location, or any of the business data you enter into the app.
MakerMargin offers a one-time "Pro Unlock" purchase processed entirely through Apple's StoreKit framework. Payment processing, transaction verification, and receipt management are handled by Apple. We receive no payment card details or billing information.
We never sell, rent, or share analytics data with third parties.
Your data is stored in your app's sandboxed container within iOS Application Support. It remains on your device and is protected by iOS's built-in security. If you delete the app, all local data is permanently removed.
Anonymous analytics events are transmitted over HTTPS. We retain these events for up to 90 days for analysis, after which they are automatically deleted. We implement reasonable technical measures to protect this data.
MakerMargin does not integrate any third-party analytics SDKs (such as Google Analytics, Firebase, or Mixpanel), advertising networks, social media platforms, or crash reporting services.
The only external service interaction is:
We do not share your personal data with any third parties because we do not collect personal data. Anonymous analytics events are stored only on our own infrastructure.
We may disclose information if required by law, but given the anonymous nature of what we collect, this scenario is extremely unlikely.
MakerMargin is a business tool intended for adults. We do not knowingly collect data from children under 13. Since we do not collect personal information, no age verification is required.
MakerMargin is available worldwide on the Apple App Store. Anonymous analytics events may be transmitted to servers located outside your country of residence. By using the app, you consent to this transfer.
We may update this privacy policy from time to time. If we make material changes, we will update the "Effective" date at the top of this page. Continued use of the app after changes constitutes acceptance of the revised policy.
If you have questions, concerns, or requests regarding this privacy policy or your data, please contact us: