ChainInterLynx

Legal

Privacy Policy

Effective Date: May 5, 2026  ·  Last Updated: October 1, 2026

This Privacy Policy describes how Chain Interlynx, LLC ("ChainInterLynx," "we," "us," or "our") collects, uses, and shares information when you use our mobile applications, including those listed under Apps Covered by This Policy (collectively, the "Apps"), our web software, including the CheckLynx check-printing service (the "Services"), and the website at chaininterlynx.com (the "Site"). By using the Apps or the Site, you agree to the practices described in this policy.

Apps Covered by This Policy

Chain Interlynx, LLC publishes its mobile applications on the Apple App Store as Chain Interlynx, LLC and on Google Play under the developer name iDev4u. This Privacy Policy applies to each of the following apps (the "Apps"), on every platform where they are offered:

1. Information We Collect

1.1 Information Collected Automatically

When you use our Apps, we and our advertising partners may automatically collect:

1.2 Information You Provide

Our Apps do not require you to create an account or submit personal information to use their core features. In-app data such as scores, counts, calculations, trips and journal entries is stored locally on your device and is not transmitted to our servers. Where an App offers optional sync or sharing (for example OneList shared lists or Bike-n-Hike circles), that data is stored in your own Apple iCloud account and shared only with the people you invite. Apps that use your precise location (for example Bike-n-Hike and iSportsman Journal) use it on your device to provide their features and do not send it to us.

1.3 Information from the Site

If you contact us by email through the Site, we receive whatever information you choose to send us (such as your email address and the contents of your message). The Site itself does not set tracking cookies.

1.4 CheckLynx

When you connect a QuickBooks Online company to CheckLynx, we receive, through Intuit's authorization, the data needed to print checks: company name and address, bank accounts, vendors and their addresses, bills, checks, and bill payments marked to print. We also store what you enter: bank routing and account numbers, check numbers, printer alignment settings, and an optional signature image, plus a record of your print runs. Bank numbers and QuickBooks access credentials are encrypted at rest. We use this information only to provide CheckLynx to you. We do not sell it, use it for advertising, or combine it with data from our Apps.

1.5 Purchases

When you buy a subscription or license, our payment processor, Stripe, collects your payment details under its own privacy policy. We receive your name, email address, billing country and postal code, the product purchased, and payment status, but never your full card number. For font licenses we also keep the licensee name and license ID.

2. How We Use Information

3. Legal Bases (EEA / UK Users)

If you are in the European Economic Area or the United Kingdom, we process your information under the following legal bases: your consent (for personalized advertising and tracking), our legitimate interests (for analytics, security, and operating the Apps), and compliance with legal obligations. You may withdraw consent at any time through your device's privacy settings or the in-app consent prompt where available. On Android you can reset or delete your advertising ID, or opt out of ads personalization, under Settings → Google → Ads (or Settings → Privacy → Ads).

4. Advertising and Third-Party Partners

Our Apps display advertisements served by third-party advertising networks, including Google AdMob. These partners may use device identifiers, location data, and usage data to deliver targeted advertising and to measure ad performance, including across other apps and websites you use.

For more information on how Google uses your data and your choices, see Google's privacy and ads policies:

You can also limit ad tracking on your device:

5. Children's Privacy

Some of our Apps (for example BB Score Keeper) carry a 4+ age rating and may be used by children. We do not knowingly collect personal information from children under 13 (or the equivalent minimum age in your jurisdiction) beyond the limited data described in Section 1, which is used in compliance with applicable children's privacy laws (including COPPA in the United States).

Where required, we configure our advertising partners to serve only non-personalized advertising to users believed to be children. Parents or guardians who believe we have collected personal information from a child without appropriate consent may contact us at the email below to request deletion.

6. Sharing of Information

We do not sell or rent your personal information. We share information only as follows:

7. Your Rights

Depending on where you live, you may have the right to:

To exercise these rights, email us at privacy@chaininterlynx.com. We will verify your request and respond within the timeframes required by applicable law.

8. Data Retention

We retain information for as long as needed to provide the Apps and Site, comply with legal obligations, resolve disputes, and enforce our agreements. Most automatically-collected data (device IDs, usage data) is retained by our advertising partners according to their own retention policies. For CheckLynx, when you disconnect QuickBooks or your subscription ends you may ask us to delete your stored data, and we will do so within 30 days except for records we must keep by law (such as payment and tax records).

9. Data Security

We use reasonable administrative, technical, and physical safeguards designed to protect information from unauthorized access, alteration, or disclosure. No method of transmission or storage, however, is 100% secure.

10. International Transfers

Chain Interlynx, LLC is based in the United States. If you access the Apps or Site from outside the United States, your information may be transferred to, stored, and processed in the United States or other countries where our partners operate. By using the Apps or Site, you consent to such transfers.

11. Changes to This Policy

We may update this Privacy Policy from time to time. When we do, we will revise the "Last Updated" date at the top of this page. Material changes will be highlighted within the Apps or on the Site as appropriate. Your continued use after a change constitutes acceptance.

12. Contact Us

For questions about this Privacy Policy or our data practices, contact:

Chain Interlynx, LLC
Email: privacy@chaininterlynx.com
Website: chaininterlynx.com