NETURAKU vs 元素カード119
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NETURAKU
Read full descriptionHide full description
NETURAKU is an interactive educational simulation app for experiencing thermodynamics phenomena hands-on. The 5th app in the RAKU series following SUUGAKU (math), BUTURAKU (physics), DENRAKU (electricity), and HARAKU (waves). This time, the theme is heat. Learn and enjoy the wonders of heat and the depth of physical laws through 10 simulations. [10 Simulations] 1. Particle Motion (Ideal Gas) Observe particle motion in real time based on temperature. Change volume and temperature to measure pressure from wall collisions and experience the ideal gas law (PV = nRT). 2. Heat Conduction Simulate heat diffusion using a 2D finite difference method. Adjust heat source temperatures and thermal conductivity to observe temperature distribution changes based on Fourier's law in real time. 3. Phase Transition Matter changes state between solid, liquid, and gas as temperature varies. Intuitively experience the differences in particle behavior from lattice vibrations to free motion. Visually understand the concepts of melting and boiling points. 4. Carnot Cycle Follow the 4 processes - isothermal expansion, adiabatic expansion, isothermal compression, and adiabatic compression - on a PV diagram. Visualize the efficiency of an ideal heat engine (eta = 1 - T_L/T_H). 5. Entropy Simulate the mixing process of two types of gas separated by a partition. When the partition is removed, observe entropy increasing in real time on a graph. 6. Thermal Radiation (Blackbody Radiation) Visualize the blackbody radiation spectrum (Planck distribution) in real time based on temperature. As temperature changes, the peak wavelength shifts (Wien's displacement law) and radiant energy is proportional to the fourth power of temperature (Stefan-Boltzmann law). 7. Speed Distribution (Maxwell-Boltzmann) View the speed distribution of gas particles as a histogram alongside the theoretical curve. As temperature rises, watch the distribution broaden and its peak shift to the right. Build intuition for the most probable, mean, and root-mean-square speeds. 8. Brownian Motion Visualize a large particle (pollen grain) undergoing irregular motion as it is buffeted by countless invisible smaller molecules. The path is drawn in real time, revealing the random-walk trajectory and how temperature and molecule count affect the motion. 9. Cooling Law (Newton's Law of Cooling) Simulate how a hot object cools at a rate proportional to its temperature difference with the surroundings. Adjust the cooling coefficient, initial temperature, and ambient temperature to watch the exponential decay curve on the temperature-time graph approach equilibrium. 10. Diffusion (Fick's Law) Simulate how a concentration imbalance, like a drop of ink, spreads from high to low until it becomes uniform. Tap to add ink and watch the center cross-section profile flatten (peak lowering and widening toward a uniform state). [Features] - Adjust parameters in real time across all simulations - Real-time display of physics formulas and numerical values - Dark mode / Light mode support - Clean home screen organized by category - Intuitive and beautiful UI - Only a banner ad at the bottom of the home screen - No in-app purchases or subscriptions [Recommended For] - Students studying thermodynamics or statistical mechanics in physics class - Anyone who wants to intuitively understand the properties of heat - Teachers looking for educational tools - Everyone interested in thermodynamics and statistical physics
元素カード119
Read full descriptionHide full description
「元素カード119」は、元素周期表の全119元素をカード形式で学べる学習アプリです。 【元素カード】 各元素をカードで表示。元素記号、原子番号、原子量、電子配置などの基本情報を一覧できます。カードをめくるように楽しく学習できます。 【周期表ビュー】 インタラクティブな周期表から各元素の詳細情報にアクセス。元素の位置関係や族・周期の特徴を視覚的に理解できます。 【グループ別学習】 アルカリ金属、ハロゲン、希ガスなど、元素グループごとにまとめて学習。共通の特性を効率的に把握できます。 【暗記テスト】 元素記号や原子番号の暗記テストで理解度をチェック。繰り返し学習で確実に覚えられます。 中学・高校の理科学習から、大学受験の化学対策、化学に興味をお持ちの方まで、幅広くお使いいただけます。
Screenshots
Verdict
The clearest difference is ads: 元素カード119 at none against NETURAKU's shown. NETURAKU's advantage is update cadence (every 4 days vs every 10 days) and iOS requirement (13.0 vs 17.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
NETURAKU ships an update every 4 days, 元素カード119 every 10 days. The most recent releases landed on September 10, 2026 and August 26, 2026 respectively.
| Parameter | NETURAKU | 元素カード119 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days — better | Every 10 days |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 25 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Fuji Bit Inc. | SANWA Inc. |
In-app purchases
NETURAKU
No in-app purchases
元素カード119
No in-app purchases





