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TacUNS: SI Firewall & Security

See what your Android apps send out, then block it

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Android grants apps internet access at install and never asks again. TACUNS is a free on-device firewall: block any app from Wi-Fi or mobile data, filter ads and trackers at DNS level, see what apps send out. No root, no account, newly rebuilt interface.

PH · launched Nov 8, 2026 · 1 upvote (top 65%) · 0 views

Niche: mobile system utility apps · 186 launches, 17 in the last 7 days ▲ +6% · Explore this niche →

Category and tags
  • Security
  • Prosumer
  • Not AI
  • Commercial product
  • Android
  • Privacy
  • Security

Visit website ↗ Source listing ↗

More like this: all 186 launches in mobile system utility apps →

Could you build this?

Partial The settings UI, per-app rules and DNS filter lists are vibe-codeable, but the core per-app traffic blocking needs a VpnService packet engine that is hard to get right and reliable on Android.

What it would actually take: Build a Kotlin Android app around VpnService, routing traffic through a local TUN interface and mapping flows to UIDs. The hard parts are a correct user-space TCP/UDP packet stack that doesn't break connectivity, and battery-efficient DNS filtering. This needs solid Android networking knowledge and real-device testing across OS versions.

Competitors

Other products that read as similar to this one : 234 launches clear the similarity bar, closest 8 shown.

Attention rank: #82 of 235 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 338 days after the earliest competitor.

  • AppDNS · github · 2026-10-10 · 17 upvotes · similarity 0.47
  • ThunderVPN · ph · 2026-10-30 · 1 upvotes · similarity 0.46
  • CallGuard · ph · 2026-10-31 · 1 upvotes · similarity 0.45
  • lg-tv-blocklist · github · 2026-09-09 · 157 upvotes · similarity 0.45
  • DataSentryX: Tracker Blocker · ph · 2026-09-18 · 1 upvotes · similarity 0.45
  • Rits Browser · ph · 2026-11-01 · 2 upvotes · similarity 0.45
  • tachyon-proxy · github · 2026-11-01 · 16 upvotes · similarity 0.44
  • CacheGuard · ph · 2026-10-20 · 1 upvotes · similarity 0.43

Related data

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.