Privacy Policy

Metrix: Unit ConverterLast updated: May 14, 2026

1. Introduction

This Privacy Policy describes how Reply200 ("we", "us", or "our") handles information in connection with the Metrix: Unit Converter mobile application ("the App"). We are committed to protecting your privacy and being transparent about our practices.

Developer: Reply200 Bundle ID: com.reply200.metrix Platform: iOS 17.0+

2. Information We Collect

We do not collect any personally identifying information. The App is designed to operate primarily on your device. The only data we receive is a small set of non-identifying analytics and marketing-attribution events, described in Section 5.

Category	Collected?	Details
Personal identifiers	No	No name, email, phone number, or account required
Usage data	Limited, non-identifying	Firebase Analytics / Google Analytics 4 events (installs, opens, paid conversions). See Section 5.
Location data	No	No GPS, IP-based, or approximate location
Device identifiers	Per-install UUID only	App-generated random UUID stored on your device, included with analytics events to deduplicate sessions. No IDFA, IDFV, or fingerprinting. See Section 5.
Marketing attribution	Limited	Apple Search Ads attribution token retrieved via AdServices on first launch. See Section 5.

3. On-Device Data

The App stores the following data locally on your device only, using standard iOS storage (UserDefaults and SwiftData):

• Conversion history — your recent conversions (up to 100 entries), stored in the on-device SwiftData database
• Preferences — haptic feedback toggle, sample hint toggle, last-used category and unit selections
• Purchase status — whether Metrix Pro has been unlocked, verified through Apple's StoreKit framework

This data never leaves your device. It is not backed up to our servers, and we have no ability to access, read, or retrieve it.

4. In-App Purchases

The App offers a one-time in-app purchase ("Metrix Pro") for $3.99 USD, processed entirely by Apple through the App Store. We do not receive, process, or store any payment details — including credit card numbers, billing addresses, or Apple ID credentials.

All purchase and restore operations are handled by Apple's StoreKit 2 framework. Apple's privacy practices govern these transactions: apple.com/legal/privacy.

5. Third-Party Services and Analytics

To understand how the App is used and to measure the effectiveness of our advertising, the App sends a limited amount of non-identifying data to the services listed below. We use this data for product and marketing analytics only. We never link it to your Apple ID, email, name, or any other personally identifying information.

• Firebase Analytics / Google Analytics 4 (GA4). The App embeds the Firebase Analytics SDK from Google. A small set of app events (such as installs, opens, and paid conversions) is sent via Firebase to Google Analytics 4. Google's handling of this data is governed by its own privacy policy: policies.google.com/privacy.
• Apple Search Ads attribution via AdServices. On first launch the App asks Apple's AdServices framework whether the install can be attributed to an Apple Search Ads campaign. The resulting attribution token, if any, is forwarded to GA4 alongside the install event so we can measure ad effectiveness. The token does not identify you. Apple's privacy practices govern this token: apple.com/legal/privacy.
• Per-install UUID. On first launch the App generates a random UUID, which is stored on your device and included with the analytics events above so GA4 can deduplicate sessions from the same installation. It is not your Apple ID, IDFA, IDFV, or any system-issued identifier, and it is reset whenever you reinstall the App.
• Purchase events. When you complete an in-app purchase, the App sends the Apple transaction identifier and the purchase amount to GA4 so we can measure paid conversions. No payment-method details are involved; payment is handled exclusively by Apple's StoreKit framework as described in Section 4.

The only other external service involved is Apple's App Store / StoreKit, which governs the purchase flow. No other third-party SDKs, advertising networks, or remote APIs are integrated.

6. Children's Privacy

Because the App does not collect any data from any user, it complies with the Children's Online Privacy Protection Act (COPPA) and similar regulations. We do not knowingly collect personal information from children under the age of 13 or any other age group.

7. Data Sharing and Disclosure

We do not sell, rent, or commercially share any data about you. The limited, non-identifying analytics and attribution data described in Section 5 is shared only with Google (as our analytics processor) and Apple (for Search Ads attribution), and is used solely for Reply200's product and marketing analytics. We do not disclose any other data to third parties.

8. Data Retention

All App data resides on your device. Uninstalling the App removes all associated data. We retain nothing on our end.

9. Your Rights

Since no personal data is collected or stored by us, there is no personal data to access, correct, or delete on our systems. You can clear the App's local data at any time by uninstalling it or using the iOS Settings > Storage management.

If you are located in the European Economic Area (EEA), California, or another jurisdiction with data protection laws, your rights under GDPR, CCPA, or equivalent legislation are fully respected by our zero-collection design.

10. Changes to This Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with a revised "Last updated" date. Continued use of the App after changes constitutes acceptance of the updated policy.

11. Contact Us

If you have questions or concerns about this Privacy Policy:

• Chat: Contact Support
• Email: support@reply200.com