Algorithms vs OnSpace AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Algorithms
Learn algorithm concepts through interactive animations and code explanations. Master complex problems with a step-by-step visual approach, ideal for interview preparation and efficient learning.
- Interactive algorithm animations
- Code explanations with subtitles
- Step-by-step learning process
- Categorized algorithm problems
- Visual debugging aid
- Focus on understanding ideas and code
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Did you pass the interview algorithm question? Learning algorithm questions takes too much time? Not your problem! Before this, no algorithmic learning method could be so simple and efficient. It only takes three steps to become an algorithm master: The first step is to read the question; The second step is to play the animation, refer to the subtitles, and understand the ideas and codes; The third step is to read, analyze and summarize; Why do you make an algorithm animation diagram app? Like many programmers, I have to prepare a lot of time to brush up the algorithm every time I change jobs. Very good, in the process of brushing the questions, you must first read the solution. I also read a lot of problem solutions from big guys on the Internet, and I especially like to read algorithm analysis with moving pictures or schematic diagrams, which is faster than reading text. In the process, several problems were also found, such as: the animation is not interactive and cannot be paused; the data is dead and cannot be changed; it is not convenient to study on the mobile phone, etc. I saw some good animations at the beginning, and I had a strong urge to implement them in the app with native code several times. This time I finally made up my mind and made 70 animations in one go. I understand that the positioning of this app is a tool that can help us quickly understand algorithm ideas and codes, help memory, and improve learning efficiency. But here you can't submit, you can't execute the code, and the code still needs to be typed on the computer to make it feel better. Why is it not arranged in the order of the leetcode number? At present, the algorithm questions are classified into three major blocks: - linked list, string, array, binary tree; - Backtracking, greedy, dynamic programming, divide and conquer; - Sort and classify separately. Under each category, the difficulty is divided into easy, medium and hard. First classify data structures and algorithms separately, and learn according to knowledge points. For example, you can concentrate on learning binary tree structures or dynamic programming algorithms, so that concentrated saturation training can help improve learning efficiency. The data structure comes first, and the algorithm follows, which is also arranged in the order in which we learn theoretical knowledge. In terms of algorithms, four types are currently arranged: backtracking, greedy, dynamic programming, and divide-and-conquer. When I learned data structures and algorithms many years ago, I first came into contact with various sorting algorithms. At that time, I felt that sorting was too difficult, and I was very impressed, so I made a separate sorting classification for beginners. Thinking on how to combine animation and code and other interactive issues - In the process of learning algorithms by myself, I often understand the ideas, but I can't understand the codes, and many codes in the text explanations have no comments. Seeing this is a big headache. Therefore, when thinking about App interaction, the code highlighting function is specially designed, which means that each line of code will be highlighted as the animation progresses. In this way, the animation is executing, the code is highlighted, and it looks cool. - Although the animation is easy to understand, it still needs some short explanations, so the "subtitle" function is designed below the animation. Every time the corresponding step is executed, the corresponding explanation will be displayed. - Animation playback and reset, each algorithm page has a playback function, so how to prepare test cases? To simplify the concept of test cases, a "reset" button is designed, which means that the test cases are random. When you want to change a set of data, just click reset.
OnSpace AI
Build powerful AI-driven mobile applications in minutes without any coding. Describe your app idea, and the platform handles UI, logic, data, and deployment for iOS and Web.
- No coding required
- AI-powered app generation
- Native UI/UX
- Cross-platform development (iOS)
- User authentication
- Secure backend endpoint
- App store distribution
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OnSpace AI – Build powerful AI apps in minutes. No coding needed. Turn your ideas into powerful AI apps in minutes—no coding needed! OnSpace AI’s free, no-code platform lets you create custom AI applications effortlessly. Just describe your vision, and our agentic AI handles the rest—UI, logic, data, and deployment across iOS and Web. Why OnSpace AI - Zero Coding Required – Anyone can build - Fast & Easy – From idea to app in minutes - AI-Powered – Smart automation does the work - Fully Customizable – Tailor apps to your needs - Cross-platform native UX – Smooth on iOS Key Capabilities - Native UI/UX – Polished, responsive interfaces - Cross-platform Development – iOS support - User Authentication – Email/OTP/social login - Secure Backend Endpoint – API key–protected (e.g., Claude) - App Store Distribution – Publish to Apple App Store - Custom Domain Publishing – Publish to your own domain (Developing) Powered by Spaces (Alpha) – Instant Serverless Backend Spaces is OnSpace’s built-in backend that gives you a production-ready stack with zero setup: - Instant setup and zero maintenance - Managed PostgreSQL with Row Level Security and real-time sync - File Storage for images and documents with automatic optimization - Edge Functions for custom business logic and secure APIs - Visual Dashboard for data operations, user management, and monitoring - Familiar APIs/SDKs (Supabase-like) with full TypeScript support Get started Download now and start creating AI apps for free! Support and Policies For help Email: contact@onspace.ai Privacy Policy: https://auth.onspace.ai/privacy-policy Terms of Use: https://auth.onspace.ai/terms-of-use
Screenshots
Verdict
The clearest difference is rating: Algorithms at 4.5 against OnSpace AI's 3.4. Algorithms also leads on review sentiment (79% vs 38%) and monetization model (free vs free with in-app purchases). OnSpace AI's advantage is update cadence (every 2 days vs every 3 weeks) and chart position (#12 vs unranked). 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
Both are free to download. Algorithms sells 3 one-off in-app purchases and OnSpace AI sells 11 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.
Algorithms holds the better App Store score, 4.5 against 3.4. Both are backed by a comparable volume of ratings — 8 and 27 respectively. Written reviews point the same way: 79% of Algorithms's written reviews are positive against 38% of OnSpace AI's.
Algorithms ships an update every 3 weeks, OnSpace AI every 2 days. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.
| Parameter | Algorithms | OnSpace AI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (8 ratings) — better | 3.4 (27 ratings) |
| Positive reviews | 78.6% of reviews — better | 37.5% of reviews |
| Number of ratings | 8 | 27 — better |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | — | #12 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 25 MB | 238 MB |
| Age rating | 4+ | 4+ |
| Developer | 森 林 | SoulZ AI Inc. |
Customer experience
Algorithms
OnSpace AI
In-app purchases
Algorithms
- Unlock easy problems$2.99
- Unlock medium & hard problems$3.99
- Unlock all problems$5.99
OnSpace AI
- OnSpace Monthly Access$19.991 Month
- OnSpace Monthly Access3 Days trial$24.991 Month
- OnSpace Monthly Access$24.991 Month
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- OnSpace Monthly Access$49.991 Month
- OnSpace Yearly Access$179.991 Year
- OnSpace Annual Access$204.991 Year
- OnSpace Annual Access$509.991 Year
- 6000 Credits$19.99
- 12000 Credits$35.99
- 24000 Credits$71.99
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- 30000 Credits$99.99
Questions
Is Algorithms free?
Is OnSpace AI free?
Which has better reviews, Algorithms or OnSpace AI?
Do Algorithms or OnSpace AI have ads?
Which is updated more often, Algorithms or OnSpace AI?
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