Features & Capabilities

Fast, offline subnetting practice for CCNA and Network+ candidates. Random questions, deterministic answers, built-in block size reference, and zero ads or accounts.

An offline subnetting quiz for CCNA, Network+, and other certification candidates - questions randomly generated, answers deterministic, every calculation hand-verified.

It drills the "magic number" / block-size method I memorized before my own exams: built for speed and repetition.

Features:

  • Built-in block-size ("magic number") reference, one tap away
  • Five randomly generated questions per session
  • SESSION and TOTAL counters to track progress
  • Fully offline - no accounts, ads, tracking, or subscriptions
  • Built by a working network engineer with AI-assisted tooling, and thoroughly tested

About me: I'm a working network engineer and active CCNA, residing in Arizona, USA.

Questions, feedback, or bug reports? I read and reply to every email personally.

User Growth & Download Statistics

App
By:
Tyler Dix
Rating:
5.00
(1)
Version:
1.0 Last updated: 2026-05-28
Version code:
885989364
Creation date:
2026-05-28
Compatible devices:
Size:
2.48MB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-06
Compare stats and ranking:

Ranking

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Tyler Dix
Apple Apps Store
https://apps.apple.com/us/app/subnet-driller/id6771981386
Website:
https://tylerdix.com/subnet-driller/

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