DataStructureAndAlgorithm vs Voltios
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DataStructureAndAlgorithm
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Course Title: Mastering Data Structures and Algorithms Description: This comprehensive course offers an in-depth exploration of fundamental concepts in data structures and algorithms, equipping learners with the knowledge and skills necessary to tackle complex programming challenges with confidence. Whether you're a beginner seeking to establish a strong foundation in computer science or an experienced programmer aiming to enhance your problem-solving abilities, this course has something to offer for everyone. Course Content: Introduction to Data Structures and Algorithms: Understand the importance of data structures and algorithms in computer science. Learn about basic terminology, key concepts, and common applications. Arrays and Linked Lists: Dive into the world of linear data structures. Explore arrays and linked lists, their implementation, operations, advantages, and limitations. Stacks and Queues: Learn about stack and queue data structures, their applications, and implementation using arrays and linked lists. Understand concepts like LIFO and FIFO. Trees and Binary Trees: Explore hierarchical data structures. Study binary trees, their properties, traversal algorithms (inorder, preorder, postorder), and common applications. Graphs: Delve into graph theory. Understand graph representations (adjacency matrix, adjacency list), traversal algorithms (DFS, BFS), and applications like shortest path algorithms. Sorting and Searching Algorithms: Master sorting algorithms (bubble sort, insertion sort, selection sort, merge sort, quick sort) and searching algorithms (linear search, binary search). Analyze their time and space complexity. Hashing: Learn about hash functions, collision resolution techniques (chaining, open addressing), and applications of hashing in data storage and retrieval. Advanced Data Structures: Explore advanced data structures such as heaps, hash maps, AVL trees, red-black trees, and tries. Understand their implementation and usage scenarios. Dynamic Programming: Grasp the concept of dynamic programming and learn how to apply it to solve optimization problems efficiently. Greedy Algorithms: Understand greedy algorithms and their application in solving optimization problems by making locally optimal choices. Algorithmic Problem Solving: Practice solving a variety of algorithmic problems, ranging from simple to complex, to sharpen your problem-solving skills. Complexity Analysis: Master the techniques for analyzing the time and space complexity of algorithms. Understand Big O notation and its significance. Course Format: Detailed written content covering each topic comprehensively. Interactive coding exercises and quizzes to reinforce learning. Real-world examples and case studies to demonstrate the practical relevance of concepts. Hands-on programming assignments to apply theoretical knowledge in practical scenarios. Optional peer-to-peer discussion forums for collaborative learning and problem-solving. Prerequisites: Basic understanding of programming concepts (variables, loops, conditionals). Familiarity with a programming language such as Python, Java, or C++. Outcome: By the end of this course, you will have: A solid understanding of essential data structures and algorithms. Proficiency in analyzing and solving algorithmic problems efficiently. Enhanced problem-solving skills and critical thinking abilities. Confidence to tackle coding interviews and competitive programming challenges. A strong foundation for pursuing advanced topics in computer science. This version focuses solely on the content and does not mention any video lectures.
Voltios
A puzzle game that teaches the fundamentals of electricity through interactive circuit building. Explore various electrical concepts like switches, short circuits, and Ohm's law in a visually engaging and playful manner. Designed for families with no ads or tracking, offering a complete learning experience with a single purchase.
- Interactive circuit building
- Learn electrical concepts visually
- Explore switches, fuses, and Ohm's law
- 68 levels across 9 worlds
- Offline play
- No ads or tracking
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Build circuits, light up the world. Voltios is a puzzle game for learning electricity visually. Connect wires, close switches and watch what changes: a bulb lights up, a motor spins or a fuse protects the circuit. LEARN BY DOING • Discover why current needs a closed circuit. • Experiment with switches, conductors and insulators. • Avoid short circuits and learn how to use fuses. • Compare series and parallel circuits. • Explore Ohm's law and measure voltage and current with the multimeter. 10 WORLDS, 78 LEVELS Keep the original 68 campaign levels and discover 10 new levels in Laboratory, available after completing World 5. All content is included in the app purchase and opens through gameplay progression. First Sparks · Switch It! · Danger: Short Circuit · Measure & Choose · Ohm's Law · Circuit Master · Clocks & Crossings · Real Life · Magnets & Motors · Laboratory. EXPERIMENT AT YOUR OWN PACE • Component explanations, hints and learning recaps. • A daily challenge to keep practising. • A refreshed interface and a multimeter integrated into the board. • English and Spanish. For iPhone and iPad with iOS/iPadOS 17 or later. ONE APP PURCHASE No subscriptions, in-app purchases or ads. No Voltios account required. Gameplay works offline; iCloud, Game Center and sending analytics require a connection. Progress is saved on your device and synced through iCloud when available. Game Center is optional and retains the original campaign achievements. We use TelemetryDeck for interaction analytics with anonymized identifiers, without advertising tracking. See our privacy policy for details.
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Verdict
The clearest difference is in-app purchases: DataStructureAndAlgorithm at none against Voltios's 1. Voltios's advantage is price ($0.99 vs $7.99) and update cadence (every 2 weeks vs every 3 months). On ads, device support and iOS requirement 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
DataStructureAndAlgorithm costs $7.99 and Voltios $0.99 up front. Voltios sells 1 one-off in-app purchase. DataStructureAndAlgorithm asks for nothing beyond the download.
DataStructureAndAlgorithm ships an update every 3 months, Voltios every 2 weeks. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.
| Parameter | DataStructureAndAlgorithm | Voltios |
|---|---|---|
| Price | $7.99 | $0.99 — better |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Paid |
| Best chart rank | — | #196 — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.3 — better | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 6 MB |
| Age rating | 17+ | 4+ |
| Developer | Buydeepdiscount.com LLC | Ignacio Noguerol Sicilia |
In-app purchases
DataStructureAndAlgorithm
No in-app purchases
Voltios
- Full Game$4.99
Questions
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Is Voltios free?
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