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Privacy Policy

Last updated: October 12, 2026

Shultz Solutions LLC (“we,” “our,” or “us”) operates EngrAssist Tools (the “App”). This Privacy Policy explains how we collect, use, and protect information when you use the App, and describes your rights under applicable privacy laws worldwide.

1. Information We Collect

EngrAssist Tools works without an account, and the calculators run entirely on your device. Our providers receive account and purchase information, subscription-service identifiers and request data, and feedback you intentionally send, as described below.

Stored locally on your device only:

Device permissions and choices:

Collected if you create or sign in to an account (optional):

Subscription service, including when you are signed out:

Information we do NOT collect:

Feedback you choose to send:

2. How We Use Your Information

On-device information personalises your experience — for example, remembering your theme and recently used tools. If you create an account, your email or sign-in identifier and subscription status are used only to sign you in and to keep your Pro access in sync across your devices and the website. Purchase records also support subscription metrics. We never use any of it for advertising or cross-app tracking.

3. Third-Party Services

We use a small number of service providers to run the optional account and subscription features. They process data only to provide those features to you:

We do not integrate advertising networks, screen-view or tool-usage analytics SDKs, or social media trackers.

4. Data Retention

On-device data is retained until you uninstall the App or clear its storage. If you create an account, we retain your account data until you delete your account (see “Your Privacy Rights” below), after which it is removed from our active account systems. EngrAssist retains a minimal account-deletion record containing your account identifier and deletion timestamp indefinitely to prevent delayed billing events from recreating access. Payment and subscription providers may retain transaction records under their own policies. Support correspondence is kept only as long as reasonably needed to resolve the request, maintain security and business records, or meet legal obligations; you may ask us to delete it.

5. International Data Transfers

On-device data is never transferred. If you create an account, your account data is processed by our providers (see Third-Party Services), which may store or process it on servers in the United States and other countries. Where required, these transfers rely on appropriate safeguards such as the providers’ standard contractual clauses.

6. Your Privacy Rights

All Users

You can clear all locally stored data at any time by clearing the App’s cache or storage in your device’s Settings → Apps → EngrAssist Tools.

Read our account and data deletion instructions, including how to request deletion by email or remove support correspondence while keeping your account.

If you created an account, you can permanently delete it and its data from inside the App at any time: Settings → Account → Delete Account. You can also email EngrAssist@gmail.com and we will delete it for you. Deleting your account does not cancel an active App Store or Google Play subscription — cancel that in your store account.

EU / EEA Residents (GDPR)

For on-device personalisation we rely on legitimate interest; for the optional account and subscription we process your account data to perform our contract with you (providing the account and Pro access). You retain rights to access, rectification, erasure, restriction, and portability of any personal data we hold, and you can erase your account data at any time as described above. You also have the right to lodge a complaint with your national supervisory authority. To contact us about your rights, email EngrAssist@gmail.com.

UK Residents (UK GDPR / DPA 2018)

The same rights described above apply to UK residents. You may also complain to the Information Commissioner’s Office at ico.org.uk.

California Residents (CCPA / CPRA)

California residents have the right to know what personal information is collected, the right to delete it, the right to correct inaccurate information, and the right to opt out of the sale or sharing of personal information. We do not sell or share personal information. To exercise your rights, email EngrAssist@gmail.com. We will not discriminate against you for exercising these rights.

Brazil Residents (LGPD)

Under Brazil’s Lei Geral de Proteção de Dados, you have the right to confirmation of processing, access, correction, anonymisation, blocking or deletion, information about sharing, and portability. To exercise these rights or submit a complaint, contact us at EngrAssist@gmail.com.

India Residents (DPDP Act 2023)

Under India’s Digital Personal Data Protection Act, you have the right to access information about processing, the right to correction and erasure, and the right to grievance redressal. Our grievance officer can be reached at EngrAssist@gmail.com.

7. Children’s Privacy

EngrAssist Tools is a professional engineering reference tool and is not directed to children under the age of 13 (or 16 in the EU/EEA). We do not knowingly collect personal information from minors. If you believe a minor has provided us with personal information, please contact us and we will take steps to delete it.

8. Security

We implement reasonable technical and organisational measures to protect data stored within the App. In the event of a data breach affecting your rights, we will notify affected users and relevant authorities within the timeframes required by applicable law (e.g., 72 hours under GDPR). To report a security concern, contact EngrAssist@gmail.com.

9. Changes to This Policy

We update this Privacy Policy only when our practices, services, or legal obligations change; we do not send recurring notices when nothing changed. Every revision updates the date and version history. Material changes that expand collection, use, sharing, retention, or device access receive a clear in-app notice before taking effect when appropriate. If a new purpose legally requires consent, the affected processing and feature remain off until you make a separate affirmative choice. Silence, dismissing a notice, continued use, or acceptance of an earlier version is not consent to a new purpose. Minor formatting, typo, clarification, contact-detail, or privacy-improving changes do not interrupt you.

10. Version History

11. Contact Us

Shultz Solutions LLC
Email: EngrAssist@gmail.com
Website: engrassist.com