Laser Lab vs DATARAKU
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Laser Lab
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LASER LAB: AN INTERACTIVE INTRODUCTION TO OPTICS Laser Lab is an educational application designed to provide an interactive and engaging introduction to the science of lasers and optics. Through a series of structured challenges, users explore fundamental and advanced concepts in a hands-on virtual laboratory environment. A COMPREHENSIVE LEARNING EXPERIENCE Laser Lab offers 160+ carefully designed activities that introduce key principles of light behavior and optical systems. Users can freely move, rotate, and interact with various optical elements to simulate laboratory experiments. This interactive approach helps build an intuitive understanding of complex physical principles, supporting learning from high school to university levels. TOPICS COVERED Laser Lab introduces a wide range of optical phenomena through its interactive challenges: โข Focusing โข Telescopes โข Color โข Wavelength โข Polarization โข Optical Path โข Coherence โข Elliptical Polarization โข Interference โข Diffraction โข Delay Lines โข Second Harmonic Generation โข Nonlinear Optics HANDS-ON INTERACTION WITH OPTICAL COMPONENTS Users engage directly with realistic virtual components, including lasers, mirrors, lenses, filters, polarizers, wave plates, nonlinear crystals, cameras, spectrometers and oscilloscopes. Through manipulation and experimentation, users learn how these components influence the properties of light. DESIGNED FOR STUDENTS, EDUCATORS, AND ENTHUSIASTS Laser Lab is suitable for a wide range of users, including secondary school students beginning their study of optics, university students deepening their understanding, and lifelong learners interested in exploring physics. The progressive structure allows users to develop problem-solving skills and scientific reasoning at their own pace. EDUCATIONAL APPROACH Rather than presenting information passively, Laser Lab encourages active engagement through experimentation and problem solving. This method bridges the gap between theoretical knowledge and practical application, fostering deeper comprehension of fundamental and advanced topics in optics. A VIRTUAL LABORATORY EXPERIENCE Laser Lab provides an accessible and comprehensive platform for learning about light and optics. Whether used independently or as a supplement to formal education, it offers a rewarding and enriching experience that promotes curiosity, critical thinking, and a deeper appreciation for the science of light.
DATARAKU
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An educational visualization app that lets you UNDERSTAND data structures by watching them - not by reading. Abstract concepts like stacks, queues, trees, and hash tables come alive as animations where the structure itself deforms in response to your operations. [ Basics - 4 structures ] - Stack (LIFO) - Feel "last in, first out" through stacking motion - Queue (FIFO) - Watch the entry and exit ends of a queue - Array - Visualize random access and the shifting of elements on insert / delete - Linked List - Nodes connected by arrows, rewired on insert and delete [ Advanced - 4 structures ] - Binary Search Tree - Values drop into place after branching left or right by comparison - Heap - Up-heap and down-heap motion in a complete binary tree - Hash Table - Keys travel through a hash function and land in a bucket - Graph - Nodes and edges showing adjacency [ Features ] - Every operation animates as a continuous deformation (no instant teleporting) - Operation log to review the meaning of each step - Each structure includes complexity notes (access / search / insert / delete), pros and cons, and real-world usage examples - Ads are never shown while an animation is playing - designed to preserve focus - Universal app for iPhone and iPad - Japanese and English (follows OS language) [ Who is this for ] - Students learning programming for the first time - Anyone preparing for IT exams - Engineers who want to re-grasp data structures visually - Curious minds who love watching things move [ Companion to ARURAKU ] The second information-systems title of the Raku Series, sibling to ARURAKU (algorithm visualization). The two apps cross-link, so the heap screen here links to ARURAKU's heap sort, and the graph screen here links to ARURAKU's BFS / DFS. Learn the "motion of computation" and the "structures that carry it" side by side. [ Note on pricing ] This app is completely free with no in-app purchases or subscriptions. To support development and maintenance we display Google AdMob banner and interstitial advertising. Ads are never shown while an animation is playing.
Screenshots
Verdict
The clearest difference is ads: Laser Lab at none against DATARAKU's shown. Laser Lab also leads on update cadence (every 3 days vs every 2 months) and iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Laser Lab ships an update every 3 days, DATARAKU every 2 months. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.
| Parameter | Laser Lab | DATARAKU |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days โ better | Every 2 months |
| Ads | No โ better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 13.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 344 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Mate Kurucz | Fuji Bit Inc. |
In-app purchases
Laser Lab
No in-app purchases
DATARAKU
No in-app purchases









