https://letmebe.app/blog/ Field notes on DNS filtering, app boundaries, and quieter iPhone use. en-us Wed, 29 Jul 2026 09:00:00 +0000 https://letmebe.app/blog/block-app-internet-iphone/ Wed, 29 Jul 2026 09:00:00 +0000 https://letmebe.app/blog/block-app-internet-iphone/ Apple’s cellular-only control, app-level DNS filtering, setup, verification, and honest limits. https://letmebe.app/blog/how-dns-blocking-works-iphone/ Wed, 29 Jul 2026 08:00:00 +0000 https://letmebe.app/blog/how-dns-blocking-works-iphone/ A precise explanation of name-based filtering, DoH, caches, shared infrastructure, and APNs. https://letmebe.app/blog/find-app-domains-iphone/ Wed, 29 Jul 2026 07:00:00 +0000 https://letmebe.app/blog/find-app-domains-iphone/ Use Observation Mode as a controlled experiment and save only the host rules you can verify. https://letmebe.app/blog/how-to-deal-with-bosses-contacting-you-on-whatsapp-outside-of-work-hours-the-letmebe-app/ Sat, 26 Feb 2022 18:19:51 +0000 https://letmebe.app/blog/how-to-deal-with-bosses-contacting-you-on-whatsapp-outside-of-work-hours-the-letmebe-app/ Expectations, iOS attention controls, and a reversible network boundary for work messaging. https://letmebe.app/blog/disable-whatsapp-double-tick-delivery-receipts/ Sun, 01 Aug 2021 17:00:58 +0000 https://letmebe.app/blog/disable-whatsapp-double-tick-delivery-receipts/ A revised, non-guaranteed answer about receipts, cached sessions, DNS filtering, and APNs.