Subnetting Practice vs Subnet Driller
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Subnetting Practice
Master network subnetting with this educational app. It offers detailed tutorials and practice modules for CIDR and VLSM, providing clear explanations for each answer to enhance your learning.
- CIDR practice module
- VLSM practice module
- CIDR tutorial
- VLSM tutorial
- Detailed answer explanations
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Learn and Sharpen Subnetting. Best Subnetting Practice application with detail explanation of answer. Subnetting Practice has subnetting tutorials and practice module. Practice Modules: 1. CIDR Practice 2. VLSM Practice Tutorials: 1. CIDR Tutorial 2. VLSM Tutorial
Subnet Driller
Practice subnetting for IT certifications like CCNA and Network+. This offline tool offers randomized questions with verified calculations and multiple answer formats. Track your progress with session and total counters, and receive optional daily practice reminders.
- Offline subnetting quizzes
- Randomly generated questions
- Multiple choice or written answers
- Session and total progress tracking
- Built-in block-size reference
- Daily practice reminders
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An offline subnetting quiz for CCNA, Network+, and other certification candidates. Questions are randomly generated, answers are deterministic, and every calculation is 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 question types: network address, broadcast, first and last usable host, usable host count - Multiple choice or written answers - or a mix of both - SESSION and TOTAL counters, plus a per-type accuracy breakdown - Optional daily practice reminder - Fully offline - no accounts, ads, tracking, or subscriptions - Shamelessly vibe coded using Fable 5; the subnet math lives in its own package and is hand-verified for accuracy About me: I'm a working network engineer and active CCNA, living in Arizona, USA. Questions, feedback, or bug reports? I read and reply to every email personally. Subnet Driller is an independent study tool, not affiliated with, endorsed by, or sponsored by Cisco Systems, Inc. or CompTIA, Inc. CCNA and Network+ are trademarks of their respective owners.
Screenshots
Verdict
The clearest difference is rating: Subnet Driller at 5.0 against Subnetting Practice's 4.4. Subnet Driller also leads on review sentiment (100% vs 75%). Subnetting Practice's advantage is update cadence (every 2 weeks vs every 6 weeks) and iOS requirement (8.0 vs 18.0). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Subnet Driller holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 10 and 6 respectively. Written reviews point the same way: 75% of Subnetting Practice's written reviews are positive against 100% of Subnet Driller's.
Subnetting Practice ships an update every 2 weeks, Subnet Driller every 6 weeks. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.
| Parameter | Subnetting Practice | Subnet Driller |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (10 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 10 — better | 6 |
| Update frequency | Every 2 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 5 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Rutul Patel | Tyler Dix |
Customer experience
Subnetting Practice
Subnet Driller
In-app purchases
Subnetting Practice
No in-app purchases
Subnet Driller
No in-app purchases
Questions
Is Subnetting Practice free?
Is Subnet Driller free?
Which has better reviews, Subnetting Practice or Subnet Driller?
Do Subnetting Practice or Subnet Driller have ads?
Which is updated more often, Subnetting Practice or Subnet Driller?
Other comparisons
