FiSi-Training: IT Practice
Subnetting, IPv4, IPv6, Ports
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Master IT networking through practice, not theory.
FiSi-Training: IT Practice is a hands-on learning app for networking fundamentals, designed for students and learners preparing for IT certifications such as CompTIA Network+ and CCNA-level topics.
Instead of passive videos or reading-heavy courses, you solve real interactive problems and get instant feedback.
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What you practice
Train across 15 structured modules covering essential IT and networking skills:
* Binary, decimal, and hexadecimal conversions
* IPv4 subnetting and network calculations
* IPv6 subnetting and address structure
* Network IDs, broadcast addresses, and host ranges
* VLSM (Variable Length Subnet Masking)
* Public vs private IP addressing
* TCP/UDP ports and services
* OSI model and protocol layers
* Logic gates and digital fundamentals
* Truth tables and boolean logic
* Data transfer rate calculations
* Bandwidth and throughput conversions
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Learn by doing
Each task follows a simple loop:
* Generate a new problem
* Solve it interactively
* Get instant correctness feedback
* Reveal the correct solution if needed
* Track your progress over time
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Exam simulation mode
Prepare under real exam conditions:
* Custom test duration (10–60 minutes)
* Select specific modules or all topics
* Normal or expert difficulty mode
* Timed questions with scoring system
* Detailed results breakdown per topic
* Weakness analysis to improve faster
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Progress tracking & leaderboard
* Track your performance across modules
* Review past exam sessions
* Identify weak areas automatically
* Compare results on global leaderboards (Premium)
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Who this app is for
Perfect for:
* IT students and apprentices
* CompTIA Network+ learners
* CCNA beginners
* System and network administrators in training
* Anyone learning networking fundamentals
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Premium features
Upgrade to unlock:
* Unlimited practice questions
* Full exam simulation mode
* Advanced statistics and history
* Global leaderboard access
* Timer and expert difficulty modes
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Why this app works
Networking is not learned by watching. It is learned by solving.
This app turns core IT concepts into interactive problem-solving drills so you actually understand subnetting, addressing, and protocols instead of memorizing them.
Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Leaderboard Fix
The developer, Igor Wilhelm, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Igor Wilhelm
- Size
- 5.5 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and German
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Premium - Monthly $9.99
- Premium - Weekly $4.99
- Premium - Lifetime $29.99
- Copyright
- © 2026 FiSi-Training