Kodree vs Delta
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kodree
Learn to code with hands-on exercises and AI-powered feedback. Explore guided career paths in web development and Python, or choose from over 150 courses. Build a portfolio with real-world projects and earn certificates.
- Hands-on coding exercises
- AI mentor for real-time feedback
- Guided career paths
- 150+ focused courses
- Real-world projects
- Gamified learning
- Completion certificates
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80% practice. 20% theory. That's the whole idea. Most courses hand you hours of video and a certificate for watching. Kodree gives you 3,100+ hands-on tasks, an AI mentor that reviews your work line by line, and real projects you can show an employer. You learn the skill by doing the skill. CAREER PATHS Start from zero and follow a guided path to a job title: Data Analyst · Front-End Developer · Full-stack Developer · Project Management · Python Developer · UI/UX Design · Vibe Coding Engineer 60+ COURSES Or take any single course on its own, whether it's your first one or your fiftieth. AI & machine learning: AI Challenge, AI for Designers, Applied Vibe Coding, Claude and Microsoft 365, Claude Chat, Claude Chrome Extension, Claude Code, Claude Cowork, Claude Design, GenAI Essentials, LLM & RAG, Machine Learning Basics, MLOps & Deployment, Model Implementation & Evaluation, Prompting for Vibe Coding, PyTorch & Deep Learning, Vibe Coding Tools Data & analytics: Data Preprocessing with Pandas, Excel, Google Sheets, NumPy, Power BI, Python for Data Analytics, SQL, Tableau Design: Figma, UI Design, UX Research Development: Django, Gamified Python, Git and Terminal, How the Web Works, HTML + CSS, Java, JavaScript, Node.js, Python, React, Redux, TypeScript Basics, Vue.js, Web Development Fundamentals Cybersecurity: Cybersecurity and AI, Cybersecurity Fundamentals, Team Security Product & leadership: Agile Practices, Authority & Strategic Communication, Communication & Leadership, Personal Productivity, PM Career Accelerator, Project Management Essentials, Team Leadership Foundations: Algebra, Arithmetic Thinking New courses ship every month, including on the AI tools that launched this year. HOW IT WORKS Practice from lesson one. 3,100+ tasks. You write code, query data or design screens in the first five minutes. An AI mentor on every task. Get your work reviewed line by line and ask why something broke — then fix it yourself. Real projects. Finish with portfolio work you can put in front of an employer, not a completion screen. Everything in one place. Code editor, lessons and community chat. No setup, no switching tabs. Streaks and leagues. Earn XP, climb the leaderboard and turn learning into a habit that holds. Flexible deadlines. Set a pace around your life, then change it when things get busy. Professional certificates. Prove what you finished. Sync across devices. Start on your phone at lunch, continue on your laptop at night. 24/7 support in chat. WHAT LEARNERS SAY "The way you guys break it down is so easy, I actually understand this." "Allows me to train around my life — I can do as much or as little as I have time available." "The interactive support provided by the AI mentor is ingenious." SUBSCRIPTION Kodree is free to download. Courses, practice tasks, AI mentor feedback, projects, community chat and certificates require a subscription. You can manage, pause, switch or cancel your plan right inside the app. Questions? support@kodree.com Instagram: @kodree_com Facebook: kodreecom Kodree is an independent learning platform. Claude is a trademark of Anthropic, PBC. Kodree is not affiliated with or endorsed by Anthropic. Stop watching. Start practising. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Delta
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You read about AI every morning. Newsletters, threads, release notes. By Friday, almost none of it is left. The habit is not the problem. The format is. Reading something once is the least effective way to learn anything, and an entire content economy sits on top of it. Delta is the other half. Thousands of short lessons on what actually changed, each ending in a question you have to answer. Being asked is what makes it stick; reading never did. Ninety seconds, usable in a queue. WHAT A CARD LOOKS LIKE Two or three paragraphs, then a question. Not a quiz question. Predict the output. Spot the bug in the IAM policy. Pick the cheaper option and say why. Name the tradeoff the benchmark table is hiding. Then the explanation, which is the part that matters, written by someone who has shipped the thing rather than read about it. Every card links to the source it was written from. We never reproduce it. NINE TOPICS Foundations and modeling. Attention variants, scaling laws, fine-tuning, evaluation methodology, reading a benchmark table honestly. Generative AI. Reasoning models, context handling, structured output, sampling. Agentic AI. Tool use, MCP, planning, memory, and the failure modes only agents have: loops, runaway cost, silent partial failure. AI engineering and inference. KV cache, quantization, batching, routing, what a token actually costs you in production. Data and retrieval. RAG and how it fails, chunking, reranking, drift. AI security. Prompt injection direct and indirect, exfiltration through tools, MCP supply chain, sandboxing, least privilege, the OWASP LLM Top 10. Responsible AI and governance. Bias measurement, interpretability that survives an audit, the EU AI Act by risk tier, NIST AI RMF, ISO 42001, model documentation and audit trails. Always framed as what you have to build, never as policy commentary. Enterprise AI architecture. Landing zones, multi-tenancy, identity for agents acting for users, build versus buy. AI operations and reliability. Monitoring nondeterministic systems, evaluation in production, regression testing prompts, incident response when the model is the incident. This is for AI Engineers. Almost nobody develops anything for the engineer who has to get an agent through a security review, satisfy an auditor, and keep it inside an SLA. IT REMEMBERS WHAT YOU FORGOT A scheduler runs underneath, tracking what you got right, what you got wrong, and how long you took. A correct answer that took twelve seconds is not the same as one that took two. You never see any of it. There is no review queue, no due count, no deck to clear. Cards you are about to forget simply reappear in the feed, indistinguishable from new ones. BUILT FOR PEOPLE WHO ALREADY KNOW THINGS Delta assumes you know what a transformer is. It will not explain backpropagation. It is for practitioners with a few years of shipping behind them who want to know what changed this month and why it matters, not what a neural network is. NO ADS, EVER The entire premise is that this is the calm alternative to a feed that monetises your attention. There is no advertising identifier anywhere in the app and there never will be. Nothing about you is sold or shared. FREE AND PAID A free set in every topic, so you can see the whole range before deciding. The subscription opens the rest: thousands of cards across all nine topics, new material as the field moves, and a scheduler that brings back what you got wrong before you forget it. Delta Pro is $4.99 per month or $49.99 per year. Payment is charged to your Apple ID. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the period ends, and you can manage or cancel in your Apple ID settings at any time. Terms: https://drvncrypto-org.github.io/delta-study/terms.html Privacy: https://drvncrypto-org.github.io/delta-study/privacy.html
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Verdict
The clearest difference is update cadence: Kodree at daily against Delta's every 2 weeks. Kodree also leads on iOS requirement (15.5 vs 18.0). 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. Kodree sells 5 in-app purchases, starting at $19.99 per month and Delta sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Kodree ships an update daily, Delta every 2 weeks. The most recent releases landed on November 4, 2026 and October 29, 2026 respectively.
| Parameter | Kodree | Delta |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (256 ratings) — better | — |
| Positive reviews | 55.6% of reviews | — |
| Number of ratings | 256 — better | — |
| Update frequency | Daily — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.5 — better | 18.0 |
| Further details — not scored | ||
| Size | 72 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Mate academy | Vishnuteja Nanduri |
In-app purchases
Kodree
- 1-Month Plan$19.991 Month
- 1-Month Plan2 variants$24.991 Month
- 3-Month Plan$38.493 Months
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- 3-Month Plan2 variants$59.993 Months
- 12-Month Plan2 variants$98.991 Year
Delta
- Delta Pro$4.991 Month
- Delta Pro$49.991 Year









