Napier's Bones Simulation vs Electricity
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!
Electricity
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Discover how metals and non-metals differ in their ability to conduct electricity with EduTech Era. This interactive learning app helps students understand electrical conductivity through engaging visuals, voice explanations, and easy-to-use drawing tools. Whether you’re revising for exams or exploring science concepts, this app provides a clear and fun way to learn. Enjoy features like zoom in/out, offline access, and updated UI for a smooth learning experience. Features: - Interactive visuals and animations - Clear voice explanations - Drawing toolbar for better understanding - Zoom and rotate options - No internet required - Updated UI for improved experience
Screenshots
Verdict
The clearest difference is update cadence: Napier's Bones Simulation at every 25 months against Electricity's every 62 months. 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
Napier's Bones Simulation costs $1.99 and Electricity $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, Electricity every 62 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.
| Parameter | Napier's Bones Simulation | Electricity |
|---|---|---|
| Price | $1.99 | $1.99 |
| Update frequency | Every 25 months — better | Every 62 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod, Apple TV — better | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 29 MB | 263 MB |
| Age rating | 4+ | 4+ |
| Developer | Ventura Educational Systems | VIRTUAL FILAMENTS PRIVATE LIMITED |
In-app purchases
Napier's Bones Simulation
No in-app purchases
Electricity
No in-app purchases
Questions
Is Napier's Bones Simulation free?
Is Electricity free?
Do Napier's Bones Simulation or Electricity have ads?
Which is updated more often, Napier's Bones Simulation or Electricity?
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