Napier's Bones Simulation vs ILLUSTRATED MATH
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Napier's Bones Simulation
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John Napier's contribution to mathematics was truly significant. Born in Scotland, Napier studied as a mathematician, physicist and astronomer. He is best known as the inventor of logarithms, but he also invented one of the first computing devices. The device, known as Napier's Bones, is manually operated and can be used to find the products and quotients of numbers. Napier's device was based on Arab mathematics and used the lattice method of multiplication. Each of the rods are inscribed with the multiplication tables for a specific number. By arranging the rods on the board, the product of two numbers can be found by performing addition operations. Use the Napier's Bones app to learn how one of the earliest calculating devices worked. More than 400 years ago, people used Napier's Bones to find the product of large numbers. In using this simulation you will discover a new way to multiply. Have fun!
ILLUSTRATED MATH
This app offers a visual and step-by-step approach to mastering fractions, covering concepts from basic identification to complex operations and word problems. It includes tools for practicing GCF and LCM, and a handwriting board for calculations.
- Visual fraction learning
- Step-by-step instructions
- Fraction word problems
- GCF and LCM practice
- Handwriting calculation board
- Schoolwork app integration
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Fractions can be tricky to master, but this great fractions app will take the stress out of learning about this essential maths concept. FEATURES: • Learning Fraction Concepts Using Visual Model • Learn with clear step by step instructions • Visualize Fractions Word Problems • Randomly generated fractions questions • Learn GCF & LCM using the Ladder Method • Hand writing board for Calculation • No Ad, No in-app purchasing, No subscription • Support for the Schoolwork App, teachers can create activities for your students and get results TOPICS COVERED: 1. Understanding Fractions • Fractions Matching • Identifying Fractions •Comparing Fractions - Like Denominators •Comparing Fractions - Unlike Denominators •Equivalent Fractions •Coverting Improper Fractions to Mixed Numbers •Fractions of a Group •Fractional Parts of a Set 2. Ordering Fractions on a Number Line Include Mixed Fraction,Improper Fractions, Simple Fractions, Decimal 3. . Factors and Multiples • 100 Numbers chart (Prime Numbers, Composite Numbers and Multiples of 2,3,5,7,10,11) • Prime Numbers • Prime Factorization (factor tree) • Learn how to find Greatest Common Factor • Learn how to find Least Common Multiple • Finding the GCF using the Ladder Method • Finding the LCM using the Ladder Method 4. Adding, Subtracting, Multiplying and Dividing Fractions Include Mixed Fraction,Proper and Improper fractions, Simpify Fractions, Same and Different Denominator, Whole Number 5.Visualize Fractions Word Problems •Word Problems - Addition •Word Problems - Subtraction •Word Problems - Multiplication if you are interested in this app, you can watch the following video: https://www.youtube.com/watch?v=rYdd0G3wYZ4 https://www.youtube.com/watch?v=iWo5Kd_Rdxc https://www.youtube.com/watch?v=pjJS4RNSY_M As a Know What's Inside member,we follow the "Know What's inside" best practices for kids' apps. https://knowwhatsinside.com/ If you need help, please contact us by email: kids17fun@gmail.com
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Verdict
The clearest difference is update cadence: Napier's Bones Simulation at every 25 months against ILLUSTRATED MATH's every 65 months. Napier's Bones Simulation also leads on device support (4 vs 1) and iOS requirement (12.0 vs 15.6). On price, 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
Napier's Bones Simulation costs $1.99 and ILLUSTRATED MATH $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Napier's Bones Simulation ships an update every 25 months, ILLUSTRATED MATH every 65 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Napier's Bones Simulation | ILLUSTRATED MATH |
|---|---|---|
| Price | $1.99 | $1.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 25 months — better | Every 65 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod, Apple TV — better | iPad |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 29 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Ventura Educational Systems | Red Hong |
In-app purchases
Napier's Bones Simulation
No in-app purchases
ILLUSTRATED MATH
No in-app purchases
Questions
Is Napier's Bones Simulation free?
Is ILLUSTRATED MATH free?
Do Napier's Bones Simulation or ILLUSTRATED MATH have ads?
Which is updated more often, Napier's Bones Simulation or ILLUSTRATED MATH?
Other comparisons
