Privacy Policy

Effective 30 July 2026. This policy covers the Sawgrid iPhone app and the website at sawgrid.vercel.app.

1. 1. Who is responsible
2. 2. Data in the app
3. 3. Purchases and subscriptions
4. 4. No advertising and no tracking
5. 5. Data Apple collects
6. 6. The website
7. 7. If you write to support
8. 8. Transfers outside the EEA
9. 9. How long data is kept
10. 10. Your rights
11. 11. Children
12. 12. Changes to this policy

1.Who is responsible

The controller for the processing described here, in the sense of Art. 4(7) of the General Data Protection Regulation (GDPR), is:

Levin David Schwab
Paulinenstrasse 1/2
71263 Weil der Stadt
Germany
Email: levin.schwab@gmx.de

Sawgrid is a one person operation and does not meet the thresholds of Art. 37 GDPR or § 38 BDSG, so there is no designated data protection officer. Write to the address above with any privacy question and it reaches the responsible person directly.

2.Data in the app

Everything you type into Sawgrid stays on your iPhone. That includes:

• project names, part names, dimensions, quantities and grain settings,
• materials, stock panels, stock lengths and your offcut inventory,
• settings such as kerf width, edge trim, minimum offcut size and preferred unit display,
• the cutting plans and PDF documents Sawgrid generates from all of the above.

This data is stored in the app's own container on the device. It is not transmitted to the developer and there is no Sawgrid backend that could receive it. If you have iCloud Backup switched on, iOS may include the app container in your encrypted device backup, which is a function of iOS and not of Sawgrid. Deleting the app deletes the data on the device.

When you export a cutting plan as a PDF or share a project file, iOS hands the file to whatever destination you pick in the share sheet. What happens to it after that is governed by the privacy policy of that destination, not by this one.

Sawgrid asks for no location access, no contacts access, no camera access and no microphone access, and it contains no analytics, advertising or tracking SDK.

3.Purchases and subscriptions

All payments run through Apple's In-App Purchase system. Apple is the seller of record. The developer never sees your name, your address, your card number or any other payment detail. What the app receives back from Apple is an entitlement record that tells it whether a purchase is active, and that check happens on the device against Apple's receipt.

Apple's own handling of your purchase data is described in the Apple Privacy Policy.

Legal basis

Processing the purchase entitlement inside the app is necessary to perform the contract you entered into when you bought the app or a subscription, Art. 6(1)(b) GDPR.

4.No advertising and no tracking

This version of Sawgrid contains no advertising. There is no advertising SDK in the app, no ad request is ever sent and no ad is ever shown, in the free version or in the paid version. There is likewise no analytics software, no attribution or measurement library and no tracking library of any kind.

There is no consent dialog, because there is nothing to consent to. Sawgrid never asks for permission to track you, never reads the advertising identifier (IDFA) and builds no profile of you. Nothing is written to or read from your device for advertising or measurement purposes.

Should a future version of Sawgrid introduce advertising, this policy will be updated before that version is released, and users in the EU, the EEA, the UK and Switzerland will be asked for their consent beforehand.

5.Data Apple collects

Downloading the app, updating it and buying anything inside it are transactions between you and Apple. Apple processes that data as an independent controller under its own privacy policy.

If you have switched on the sharing of analytics with developers in iOS Settings, Apple may make aggregated and statistical crash reports and usage measurements available in App Store Connect. This data reaches the developer in aggregate form and is not linked to your name or to your Apple Account. You can turn it off in Settings, Privacy and Security, Analytics and Improvements.

6.The website

The site at sawgrid.vercel.app is a set of static pages. It sets no cookies, runs no analytics, embeds no tracking pixels, loads no third party fonts and loads no third party scripts. There is nothing on it to consent to.

Hosting is provided by Vercel Inc., 440 N Barranca Ave #4133, Covina, CA 91723, USA, which acts as a processor for us. Like any web server, the hosting infrastructure records technical log data when a page is requested: IP address, date and time, the requested path, the HTTP status, the referring URL if your browser sends one, and the user agent string. This is necessary to deliver the pages and to keep the service secure and available, which is our legitimate interest under Art. 6(1)(f) GDPR. These logs are short lived and are not combined with any other data or used to profile visitors.

7.If you write to support

When you send an email, we process your address, the content of your message and any attachment you choose to send, for the purpose of answering you. The basis is Art. 6(1)(b) GDPR where your message concerns a contract, and otherwise our legitimate interest in dealing with enquiries, Art. 6(1)(f) GDPR.

The support mailbox is a GMX address operated by 1&1 Mail & Media GmbH in Germany. Please do not send personal data you do not want us to have. If you send a project file so a cutting plan problem can be reproduced, that file contains your parts and dimensions and nothing else, and it is deleted once the case is closed.

8.Transfers outside the EEA

Nothing in the app is transferred to a third country by us, because the app does not transmit your project data at all.

Vercel may process the technical log data of the website on servers in the United States. Vercel is certified under the EU-US Data Privacy Framework, and in addition the standard contractual clauses adopted by the European Commission under Art. 46(2)(c) GDPR apply. Apple's transfers are governed by Apple's own privacy policy.

9.How long data is kept

• Project data: on your device, for as long as you keep it. You control it, and deleting the app removes it.
• Support email: kept while the enquiry is open and for as long afterwards as any statutory retention duty requires, then deleted.
• Server logs of the website: kept only briefly for security and operational purposes.

10.Your rights

Under the GDPR you have the right to:

• request confirmation of whether your data is processed and obtain a copy of it, Art. 15,
• have inaccurate data corrected, Art. 16,
• have data erased, Art. 17,
• have processing restricted, Art. 18,
• receive your data in a structured, commonly used, machine readable format and have it transmitted to another controller, Art. 20,
• object at any time, on grounds relating to your particular situation, to processing based on legitimate interest, Art. 21. Where the objection concerns direct marketing, it is unconditional,
• withdraw a consent you have given, at any time and with effect for the future, Art. 7(3),
• lodge a complaint with a supervisory authority, Art. 77.

Send any of these requests to levin.schwab@gmx.de. Bear in mind that because there is no account and no server, we normally hold no data about you at all, so an access request will in most cases truthfully be answered with the statement that nothing is stored.

The supervisory authority responsible for the controller is:

Der Landesbeauftragte für den Datenschutz und die Informationsfreiheit Baden-Württemberg
Lautenschlagerstrasse 20
70173 Stuttgart
Germany

You may also complain to the supervisory authority of your habitual residence or place of work.

11.Children

Sawgrid is a professional and hobbyist workshop tool. It is not directed at children, and it is not knowingly used to collect data from anyone under 16. If you believe a child has provided data through the app, write to the address above and it will be dealt with immediately.

12.Changes to this policy

This policy will be updated if the app changes in a way that affects it, for example if a feature is added that processes new data. The effective date at the top always tells you which version you are reading. Material changes that require your consent will be presented to you in the app rather than quietly published here.