Your guides. Your device.

You can read every guide without a Plaintech account or agreeing to analytics.

Saved guides and progress

When you save a guide, tick off a step, mark a learning milestone, or choose larger text, this site uses your browser’s local storage to remember that choice. Plaintech’s page code does not send your saved list or progress to a server. The choices stay in that browser and will not follow you to another device.

You can unsave a guide with its bookmark button and reset step progress from the guide. To clear all local choices, remove this site’s data in your browser settings. Private browsing or blocked storage may prevent choices from being retained.

Optional visitor analytics

With your permission, Plaintech uses PostHog’s European Union service to understand which guides are useful and how readers discover our Samsung phone book. We measure page visits, book recommendation clicks, Amazon button clicks and printable download clicks. A download click does not confirm a completed download, and an Amazon click does not confirm a purchase.

Analytics can include the page path, referring website domain, campaign labels, browser and device information, and a randomly generated session identifier. This identifier connects visits in the same browser tab; we do not attach your name, email or an account to it. The project is configured to discard IP addresses. Session recording, automatic interaction capture and personal profiles are switched off.

The analytics code removes page query strings and fragments, including search queries, before sending events. It does not send typed form text, saved guides, completed steps or reading preferences. We retain only selected campaign labels when they use simple, non-personal values.

The PostHog script loads only after you choose Allow analytics. Choose No thanks to use the site without it. You can change or withdraw your choice with Analytics choices in the footer. Your choice is remembered in local storage for up to 180 days. Analytics identifiers use session storage for the current browser tab and are removed when you withdraw consent. Events already sent while you allowed analytics may remain in reports.

Browsers that send a Do Not Track or Global Privacy Control signal are treated as opting out. See PostHog’s data collection documentation for its service controls.

Search and hosting

Search is handled locally by the page. Submitting a search can put your query in the page URL and browser history; loading that URL can also expose it to the hosting service. Avoid entering personal information.

This site is hosted by Cloudflare Pages. The hosting platform may process requests, access information and technical logs under its own policies. See Cloudflare’s privacy policy for the platform’s practices.

Links to other websites

Guides link to official documentation and, where useful, account settings on other websites. Our book page links to Amazon. Those websites have their own privacy practices. Plaintech’s analytics measures the outgoing click; it cannot see what you do or buy on Amazon. Plaintech does not collect passwords, payment information or your account data.

Last updated: 5 October 2026.