Subbing

Name: Subbing
Author: napahlm

Livenapahlm2 apps · 69 installsEducationFree · contains adsIn-app purchases: $1.99 per itemnet.subbing.app

Rapid-fire subnetting quiz app built for network learners.

Alert me ★ Watch Open in Play ↗

Total installs: 46
Installs / day: —
Rating: —★
Released: 10 May 2026
Last update: 7 Jun 2026
Countries: —

Install history

exact counter from Google Play

30dAll

Installs per day · last 90 days

Change timeline

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Data safety

declared by the developer on Google Play

No data shared with third parties
Collects data Personal info, Financial info and 2 others
Data is encrypted in transit
You can ask for your data to be deleted

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

4 in 1 group

0 Sensitive1 Notable3 Routine

OtherNotable4

Access to miscellaneous device features that don't fit other categories

Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
Connect to the internet to load content and send datafull network access · INTERNET
Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description

Subbing is a rapid-fire subnetting quiz app built for network engineers, students, and anyone preparing for CCNA, CompTIA Network+, or similar certifications. QUESTIONS INCLUDES • Network and broadcast addresses • First and last usable hosts • Subnet masks and wildcard masks • Prefix lengths (/8 through /30) • Usable and total host counts • Is-host-in-subnet checks THREE MODES Competitive: 5-minute timer, all question types, mixed difficulty, free-form answers. Submit your score to the global leaderboard and see how you stack up. Timed: 10-question sprint with a per-question countdown. Every second counts. Just for Fun: no timer, unlimited questions, and step-by-step explanations after wrong answers. Great for learning. FOUR DIFFICULTY LEVELS Easy through Hard, or Mixed for a random challenge. Hard mode includes wider prefix ranges and wildcard masks. MULTIPLE CHOICE OR FREE-FORM Easier difficulties offer multiple-choice grids to help you get started. Medium and hard push you to type the answer from memory. GLOBAL LEADERBOARD Global competitive scores. Submit your display name and compete with the community. REMOVE ADS A one-time in-app purchase removes all banner ads permanently and supports development. No account required. No login. Just questions and answers.

What's new

- Internal improvements and maintenance updates - Better stability and reliability - Minor bug fixes and performance tuning

Growing in Education

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