Privacy Policy

Effective date: 16 March 2026

This Privacy Policy explains how Albert Sola-Faba, trading as CheckTwin (“CheckTwin”, “we”, “us”, “our”), collects, uses, stores, and protects your personal data. We are committed to handling your data in accordance with the UK General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018.


1. Who We Are

The data controller for CheckTwin is:

Albert Sola-Faba (sole trader) Operating as: CheckTwin Contact: info@checktwin.com

If you have any questions about this policy or how we handle your data, please contact us at the address above.


2. What Data We Collect

Landing Page

In-App

Device Data


3. How We Collect Data


4. Legal Basis for Processing (UK GDPR Article 6)

PurposeLegal Basis
Providing the core inspection functionalityContract performance (Art. 6(1)(b))
Improving the app and responding to support requestsLegitimate interests (Art. 6(1)(f))
Early access sign-up via Google FormsConsent (Art. 6(1)(a))
Marketing communications (if any)Consent (Art. 6(1)(a))

Where we rely on legitimate interests, we have balanced these against your rights and concluded our interests are not overridden by your data-protection interests.


5. How We Use Your Data


6. Data Storage & Security

Current state — on-device only All inspection data is stored locally on your iOS device using SwiftData. CheckTwin does not currently transmit or store your inspection data on any external server.

Future: iCloud sync When we introduce iCloud sync, your data will reside in your own iCloud account and will be governed by Apple’s Privacy Policy. We will update this policy before this feature is released.

Future: own backend We plan to introduce our own backend service. Data will be stored on UK-based servers and protected by appropriate safeguards. Full details will be added to this policy before the service launches.

Security measures


7. Data Retention

DataRetention Period
On-device inspection dataRetained until you delete the app or manually delete the data
Early access sign-up data (Google Forms)Until product launch or upon request
Support correspondence2 years from the date of last contact

8. Sharing Your Data

We do not sell or rent your personal data to third parties. We share data only in the following limited circumstances:


9. International Data Transfers

Where we transfer data outside the UK, we ensure appropriate safeguards are in place in accordance with UK GDPR Chapter V.


10. Your Rights Under UK GDPR

You have the following rights regarding your personal data:

To exercise any of these rights, please email info@checktwin.com. We will respond within one calendar month.


11. Complaints

If you are unhappy with how we have handled your personal data, you have the right to lodge a complaint with the UK Information Commissioner’s Office (ICO):

We would, however, appreciate the opportunity to address your concerns directly before you contact the ICO. Please reach out to us at info@checktwin.com in the first instance.


12. Children’s Privacy

CheckTwin is not intended for use by anyone under the age of 16. We do not knowingly collect personal data from children under 16. If you believe we have inadvertently collected such data, please contact us immediately at info@checktwin.com and we will delete it promptly.


13. Cookies & Tracking


14. Changes to This Policy

We may update this Privacy Policy from time to time. Where changes are material, we will notify you via an in-app notice or by email (if we hold your email address). The effective date at the top of this page will always reflect the most recent version. Your continued use of CheckTwin after changes are posted constitutes your acceptance of the updated policy.


15. Contact

For any privacy-related queries, please contact:

Albert Sola-Faba / CheckTwin info@checktwin.com