Comparison

K vs Mathji Math Practice & Quizzes

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

K

Features
Read full description

K-12Pro is an advanced AI assistant designed to revolutionize K-12 education by providing students with personalized, guided learning experiences. It facilitates deep understanding of complex concepts through interactive step-by-step explanations and robust assessment tools, all within a secure school-based environment. This platform empowers educators to deliver consistent, high-quality support across diverse curricula. How it works: 1. Concept Introduction: Students engage with K12Pro by posing questions or exploring specific curriculum topics. 2. Guided Reasoning: The AI assistant provides structured, step-by-step guidance, breaking down complex problems into manageable segments. 3. Interactive Exploration: Students can delve deeper into concepts, ask follow-up questions, and receive tailored explanations to clarify misunderstandings. 4. Formative Assessment: K12Pro integrates continuous assessment, providing immediate feedback and identifying areas where students require additional support. Benefits for School Administrators & IT Managers: • Enhanced Learning Outcomes: Drive measurable improvements in student comprehension and academic performance. • Standardized Educational Support: Ensure consistent, high-quality learning assistance across all classrooms and subjects. • Operational Efficiency: Reduce demands on teacher resources by automating routine explanatory tasks and initial concept guidance. • Data-Driven Insights: Access analytics on student engagement, common misconceptions, and learning progress to inform pedagogical strategies. • Scalable Solution: Easily deploy and manage a unified AI learning platform across multiple schools or districts. Benefits for Educators & Teachers: • Personalized Student Support: Offer individualized explanations and guidance tailored to each student’s pace and learning style. • Reduced Repetitive Workload: Free up valuable teaching time by offloading initial concept explanations and basic Q&A to the AI. • Targeted Intervention: Quickly identify students struggling with specific topics through integrated assessment feedback. • Curriculum Alignment: Seamlessly integrate K12Pro with existing K-12 curricula, enhancing current teaching methodologies. • Professional Development: Utilize insights from student interactions to refine teaching approaches and focus on advanced concepts. Domain Coverage: K12Pro supports a broad spectrum of K-12 subjects, including: • Mathematics (Algebra, Geometry, Calculus, Statistics) • Science (Physics, Chemistry, Biology, Earth Science) • Humanities (History, Literature, Civics) • Language Arts (Grammar, Writing, Reading Comprehension) • And more, continuously expanding to cover diverse educational needs.

About

Mathji Math Practice & Quizzes

This app offers adaptive math practice for students in grades 1-12, generating unique questions and adjusting difficulty based on performance. It tracks progress, provides personalized review, and includes a parent dashboard for monitoring. Kids can earn rewards to stay motivated.

Highlights
  • Smart question generation (200+ topics)
  • Adaptive difficulty adjustment
  • Mistake notebook and personalized review
  • PIN-protected parent dashboard
  • Reward system for motivation
  • Multilingual support (5 languages)
Features
Read full description

Mathji is a math practice app for kids in grades 1-12 that nails the whole loop: generate, correct, and track. • Smart question generation: 200+ topic types from elementary through high school (including AP Calculus and electives), generated on the fly so they never repeat. • Adaptive difficulty: automatically adjusts to your child's performance — steps up when it's too easy, eases off when they get stuck. • Mistake notebook + personalized review: wrong answers are saved automatically and disappear once corrected; future practice prioritizes the topics your child hasn't mastered yet. • Parent dashboard: PIN-protected. See an all-grade learning spectrum, topic mastery, recent sessions, and exactly which questions were missed and what the child picked. • Rewards: kids earn points they can redeem for rewards you define, keeping motivation high. • Five languages: Traditional Chinese, English, Japanese, Korean, and Spanish — for both questions and explanations. Privacy first: all data lives only on your child's device and in your private iCloud (CloudKit); the developer cannot access it. No ads, no in-app purchases, no external links.

Screenshots

K4 screens
Mathji Math Practice & Quizzes4 screens

Verdict

The call

The clearest difference is update cadence: K at every 2 weeks against Mathji Math Practice & Quizzes's every 2 months. K also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

K ships an update every 2 weeks, Mathji Math Practice & Quizzes every 2 months. Both last shipped on November 5, 2026.

Scorecard2 real differences · 7 level
K versus Mathji Math Practice & Quizzes: the parameters behind the verdict, then further details
ParameterKMathji Math Practice & Quizzes
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.1 — better17.0
Further details — not scored
Size40 MB43 MB
Age rating4+4+
DeveloperFIELDS-IQ LLCYu-Hui Chen

In-app purchases

None

K

No in-app purchases

None

Mathji Math Practice & Quizzes

No in-app purchases

Questions

Is K free?
K is free to download, with no in-app purchases.
Is Mathji Math Practice & Quizzes free?
Mathji Math Practice & Quizzes is free to download, with no in-app purchases.
Do K or Mathji Math Practice & Quizzes have ads?
Neither K nor Mathji Math Practice & Quizzes shows ads.
Which is updated more often, K or Mathji Math Practice & Quizzes?
K ships an update every 2 weeks, and Mathji Math Practice & Quizzes every 2 months. Most recently, K was updated on November 5, 2026 and Mathji Math Practice & Quizzes on November 5, 2026.

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