Privacy Policy

Effective date: October 17, 2026. This policy applies to Shieldio version 1.0 for iPhone and iPad and to this website.

Who we are

Shieldio is made by Johnny Liao, an independent developer ("we", "us"). If you have a question about this policy or your privacy, email wumbusapps@gmail.com.

What the app collects

Nothing. Shieldio doesn't collect, store on a server, sell or share any information about you or about how you use it. In particular, the app has:

The App Store privacy label for Shieldio is "Data Not Collected".

Your browsing

Shieldio is a set of Safari content blockers. It gives Safari a list of rules (which addresses to block and which page elements to hide), and Safari applies them by itself, on your device. Content blockers can't see the pages you visit, what you type, or which rules matched; Safari doesn't tell them. So Shieldio has no browsing history, and nothing about your browsing could ever be sent anywhere.

Filter list downloads: exactly what is sent

To keep blocking up to date, Shieldio downloads new versions of the public filter lists it uses, directly from the websites of the people who maintain them. These are the app's only network requests.

ServerWhat it serves
easylist.toEasyList, EasyPrivacy, Fanboy's Annoyance List and Fanboy's Social List
secure.fanboy.co.nzThe EasyList Cookie List

You can check all of this yourself: Settings > Privacy & Security > App Privacy Report lists every server an app contacts.

Your settings

Which categories you block and whether automatic updates are on are stored only on your device, shared between Shieldio and its Safari extensions. They're never sent anywhere. Deleting Shieldio deletes them.

Purchases

Shieldio is sold by Apple through the App Store, under Apple's Privacy Policy. We don't receive your name, email address, Apple Account details or payment information. Apple gives us sales reports, such as the number of downloads by country or region, which don't identify you. For refunds, see Support.

Information Apple may share with us

If you have chosen, in your device's settings, to share analytics with app developers, Apple may share crash reports and aggregated usage statistics (such as the number of installs) with us. These are collected by Apple, not by Shieldio, and never include your browsing. You can turn this off at any time in Settings > Privacy & Security > Analytics & Improvements. Reviews you post on the App Store are public and visible to us.

When you contact us

If you email us, including with Report a Broken Site in the app (which opens a pre-filled email in your own Mail app that you can edit before sending), we receive your email address and whatever you choose to include, such as the address of the site that broke. We use it only to reply to you and to fix blocking problems, we don't share it, and we keep it only as long as we need to. Ask us at any time and we'll delete it. We may pass the address of a broken site, without anything about you, to the filter list maintainers.

This website

This website is a set of static pages. It uses no cookies, no analytics, no scripts, no web fonts and no third-party resources. It's hosted on GitHub Pages. GitHub logs visitors' IP addresses for security purposes, as described in the GitHub Pages documentation and the GitHub General Privacy Statement. We don't have access to those logs.

What we can and can't access

We can't accessWe can see
  • the sites you visit or anything you do in Safari
  • your settings in Shieldio
  • your IP address, or the filter list servers' logs
  • your name, email address, Apple Account or payment details
  • sales reports from Apple that don't identify you
  • crash reports and aggregated statistics from Apple, only if you opted in to share them
  • public App Store ratings and reviews
  • emails you send us

Children

Shieldio doesn't collect personal information from anyone, including children.

Your rights

Depending on where you live, laws such as the GDPR (EU and UK) and the CCPA (California) give you rights to access, correct, delete or move personal information about you, and to object to certain uses. Since the app doesn't collect any personal information, the only information we might hold is email you've sent us. To make a request about it, email wumbusapps@gmail.com. If you're in the EU or UK, you can also complain to your local data protection authority. We don't sell or share personal information.

Changes to this policy

If we change this policy, we'll update this page and the effective date above. If a future version of Shieldio changes what it sends or where, for example by adding a new server, we'll update this policy before that version is released.

Contact

Johnny Liao
Email: wumbusapps@gmail.com