Pi-hole, NextDNS, Firewalla — or a box that looks after itself.

Four ways to stop ads and scams on a home network. They work in genuinely different ways, and the right one depends almost entirely on who is going to maintain it. Here is what each one costs, what it actually does, and — in the last section — when the cheapest option is the correct one to buy.

Four network blockers compared on cost, how they filter, maintenance, privacy, scam detection and whether they suit a house with non-technical parents.
  Cost How it filters Who maintains it Catches scams Your data Right for non-technical parents?
PorchLights $79 once / ₹1,999 Two on-device AI models score each address Nobody, after setup Yes — that is the primary job Never leaves the house Yes, this is the case it was built for
Pi-hole on a Raspberry Pi $35–$70 in hardware, once Large blocklists of ad domains You do, forever Only if you maintain a scam list yourself Stays local, if you never enable the public lists Only if you are the one maintaining it
NextDNS / AdGuard DNS $20–$55 per year, ongoing Cloud resolver with blocklists Nobody, but you subscribe Scam-filtering on paid tiers Every domain query goes to their server Yes, if the subscription is fine
Firewalla $319 and up A full network firewall A technical owner Not its purpose Local by default Overkill for scam blocking
Per-device security app Often free, sometimes a subscription Installed on each phone and laptop Everyone, and someone uninstalls it Partly, on that device only Varies by vendor No — this is the thing that gets abandoned

Competitor pricing from public listings, August 2026. Pi-hole and Raspberry Pi prices vary by region and are hardware costs rather than subscriptions.

If you are technical and will keep it running

Buy Pi-hole. It is cheaper, it is open source, and you already know how to use it. PorchLights will not do anything better for you.

If the whole family must be covered

PorchLights. Router-level, so the TV and the smart fridge are covered too — not just the devices someone remembered to protect.

If nobody in the house will maintain anything

PorchLights. Pre-flashed, no SD card, no console, no lists. And if the blocklist approach already failed once, that failure is the reason this exists.

Said plainly

PorchLights is not a better Pi-hole. It is a different mechanism for a different household. If you can run a Raspberry Pi and keep a blocklist current, Pi-hole is cheaper and you should buy Pi-hole. This page is on our own site, so we have no reason to pretend otherwise. What PorchLights changes is who has to do the work afterwards — and that is the whole question for a house where the victim is your mother.

One known false positive in firmware v0.3a: fonts.googleapis.com, scored 0.4774 against a 0.4774 cutoff. Threshold tuning and a built-in allowlist land in v0.3b. Scam lookups measure about 4 ms and ad lookups about 1 ms at 160 MHz, with roughly 100 KB of model on the device. The full register shows real output.