Tech vs Frequency
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tech
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Tech-Stack is a comprehensive educational app designed to help developers, students, and tech professionals understand the components of modern software development stacks. Explore the different layers of software development through an intuitive interface: FRONTEND DEVELOPMENT Discover the tools, frameworks, and best practices for building user interfaces across mobile apps, websites, and desktop software. Learn about React Native, Flutter, React.js, Next.js, and other popular frontend technologies. BACKEND DEVELOPMENT Understand server-side logic, APIs, and business processes. Explore technologies like Node.js/Express, Django/Flask, Firebase, Supabase, and more that power applications behind the scenes. THIRD-PARTY APIS & SERVICES Learn how external services extend application functionality without custom development. Discover payment gateways, authentication providers, mapping services, AI integrations, and other critical third-party tools. DATABASE SYSTEMS Explore different database technologies for storing, retrieving, and managing application data, from SQL databases like PostgreSQL to NoSQL solutions like MongoDB and Firebase Firestore. CLOUD INFRASTRUCTURE Understand cloud-based resources and services for hosting and scaling applications, including AWS, Google Cloud Platform, Microsoft Azure, Vercel, and Netlify. CI/CD PIPELINES Learn about continuous integration and delivery pipelines for automated testing and deployment, featuring GitHub Actions, Jenkins, CircleCI, and other automation tools. DEPLOYMENT & RUNTIME Discover platforms and services for hosting and running applications in production environments, from app stores to web hosting services. MONITORING & OBSERVABILITY Explore tools and systems for tracking application performance, errors, and user behavior to ensure optimal user experience. SECURITY & SECRETS MANAGEMENT Learn best practices for securing applications and managing sensitive information across different platforms. MONOREPO STRUCTURE See how these components map to files and folders in a real project structure. Each component includes: • Detailed explanations of purpose and functionality • Key features and capabilities • Common workflows • Best practices and recommendations • Platform-specific technologies for mobile apps, websites, and software Whether you're a beginner learning about software development or an experienced developer looking to expand your knowledge, Tech-Stack provides a structured way to understand the complete software development ecosystem. Perfect for: • Computer science students • Self-taught developers • Tech professionals transitioning to new roles • Teams seeking alignment on development practices • Anyone interested in how modern software is built Download Tech-Stack today and gain a comprehensive understanding of the modern software development stack!
Frequency
Transform any subject into structured audio lessons you can listen to like a podcast. Generate multi-lesson plans tailored to your learning level, with options for quick summaries or in-depth courses. Learn on the go by listening or reading, and customize your experience with adjustable depth and lesson length.
- AI-generated audio lesson plans
- Customizable lesson depth and length
- Listen or read lesson content
- Progress tracking
- Quick answer summaries
- Learn on the go
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Frequency turns any topic into a structured audio lesson plan you can listen to like a podcast. HOW IT WORKS Type any subject — from black holes to the history of pizza — and Frequency creates a multi-lesson plan tailored to your level. Each lesson comes with key concepts, follow-up questions, and optional HD audio so you can learn on the go. TWO WAYS TO LEARN • Lesson Plans: Deep-dive courses with 3-8 lessons, adjustable depth (Intro, Standard, or Deep Dive), and customizable lesson length • Quick Answers: Fast single-lesson summaries when you just need the essentials LISTEN OR READ Every lesson can be read as text or played as HD audio. Switch between modes anytime — learn your way. CUSTOMIZE YOUR EXPERIENCE • Choose your depth: Intro for beginners, Standard for a solid overview, or Deep Dive for advanced learners • Set lesson length: Short, Medium, or Long • Pick how many lessons: 3 to 8 per plan • Track your progress across all your plans BUILT FOR CURIOSITY Frequency is for anyone who wants to learn something new every day. Whether you're commuting, cooking, or just curious, turn idle time into learning time. 3 free plans daily. No subscription required.
Screenshots
Verdict
The clearest difference is iOS requirement: Tech at 15.1 against Frequency's 17.0. 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Tech | Frequency |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 34 MB | 8 MB |
| Age rating | 4+ | 12+ |
| Developer | FaireNow | Trace Ferre |
In-app purchases
Tech
No in-app purchases
Frequency
No in-app purchases









