KBruch
KBruch: Focused, open-source desktop practice for fractions and basic arithmetic on Linux. Ranked #119 of 121 in Math Learning Apps by our editors (3.0/10); pricing: Free plan; best for linux users practicing fractions and basic arithmetic.
At a glance
- Editor score3.0 / 10
- PricingFree plan
- Best forLinux users practicing fractions and basic arithmetic
- Free planYes
- Paid fromFree
- Facts checked24 Sep 2026
Where it wins
- Covers fraction arithmetic, comparison, and fraction-to-decimal conversion
- Includes prime factorization and percentage calculation exercises
- Open-source desktop application distributed in the KDE ecosystem
Where it doesn't
- Available for Linux only
- Focuses on fractions, percentages, and related core arithmetic
- Practice modes are exercise-focused rather than a broad math curriculum
Our verdict on KBruch
KBruch is an open-source mathematics learning application from KDE for learners practicing fractions, percentages, and related arithmetic. Its standalone desktop format suits Linux users who want focused exercises rather than a subscription service. The main topics include arithmetic with fractions, comparing fractions, converting fractions and decimal values, prime factorization, and percentage calculations. That makes it a practical fit for individual learners or small-scale use centered on these concepts, rather than a broad math learning program.
The exercise range is the product’s defining strength. Practice-focused modes let learners work on specific tasks, including fraction comparisons and conversions, without straying from core arithmetic. Prime factorization and percentage calculation extend the practice beyond fractions while remaining within a focused topic range. Learners seeking structured exercises in these areas may find the scope appropriate; those looking for a wider curriculum should consider an alternative with broader subject coverage.
KBruch is distributed as part of the KDE application ecosystem and is described as a desktop application. Its open-source model and free plan make it distinct from subscription-based learning services, while Linux-only platform support is a significant constraint for anyone using another operating system. Choose KBruch if Linux compatibility and focused practice with fractions and basic arithmetic are priorities. Look elsewhere if you need cross-platform access or learning material that extends substantially beyond these topics.
Your product? Our editors can test KBruch in depth and publish a review, labelled as paid · from $149/mo →
KBruch pricing
KBruch fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Adaptive learning | Not verified |
| Guided lessons | Not verified |
| Gamified practice | Not verified |
| Parent reporting | Not verified |
| Offline access | Not verified |
| Supported platforms | Linux |
| Learner level | Not verified |
| Deployment | Desktop, Self-hosted |
| Platforms | Linux |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | apps.kde.org |
| Facts checked | 24 Sep 2026 |
Alternatives to KBruch
- GeoGebraA broad, free math toolkit with practice and classroom tools, but not a full guided curriculum.9.3
- BrilliantA visual, self-paced way to build math and STEM problem-solving skills.9.2
- ReflexA focused web program for building elementary math fact fluency through adaptive practice.9.0
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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