Notes on building.
Guides on mobile apps, web platforms and AI products. Cost breakdowns, stack comparisons and how we ship.
How Much Does Legacy Software Modernization Cost in 2026?
Your legacy system works, but it is slowing you down. Modernization is not cheap, but the cost of doing nothing is higher. Here is what the project actually costs.
Cost & planning · Feb 19, 2026 · 14 min read
How Much Does It Cost to Build a Video Calling App in 2026?
Building a video calling app ranges from a simple WebRTC wrapper to a full Zoom competitor. The cost difference between those two is massive, and most founders underestimate what falls in between.
Cost & planning · Feb 18, 2026 · 14 min read
How Much Does It Cost to Build an AI Workflow Automation Tool?
AI workflow automation tools range from $15,000 for a focused MVP to over $300,000 for a full-featured platform. Here is what actually drives the cost and how to plan your budget.
Cost & planning · Feb 18, 2026 · 14 min read
How Much Does It Cost to Build a Super App in 2026?
Super apps combine payments, messaging, delivery, and marketplace features into one platform. Building one costs more than most founders expect, but phased launches can make it realistic.
Cost & planning · Feb 18, 2026 · 14 min read
How Much Does It Cost to Build a FemTech App in 2026?
FemTech is one of the fastest-growing verticals in digital health, but cost estimates are all over the map. Here is a clear breakdown of what it actually costs to build a femtech app in 2026, from a lean MVP to a full-featured platform.
Cost & planning · Feb 17, 2026 · 14 min read
How Much Does It Cost to Build an AI Agent in 2026?
Building an AI agent can cost anywhere from $15,000 for a simple task automation to over $300,000 for a fully autonomous multi-agent system. This guide breaks down every cost category, from LLM API spend and infrastructure to orchestration frameworks and ongoing operations, so you can budget accurately before writing a single line of code.
Cost & planning · Feb 16, 2026 · 14 min read
How Much Does It Cost to Build an AI SaaS Product in 2026?
Building an AI SaaS product costs significantly more than traditional SaaS, and the cost structure is fundamentally different. This guide breaks down every major expense, from LLM API fees to vector database hosting, so you can build a realistic budget before writing your first line of code.
Cost & planning · Feb 16, 2026 · 14 min read
How Much Does It Cost to Build a Design System for Your App?
A design system is one of the highest-ROI investments a product team can make, but the cost varies wildly depending on scope. This guide breaks down real pricing for every tier, from a basic Figma library to a full enterprise component platform.
Cost & planning · Feb 15, 2026 · 13 min read
Cross-Platform App vs Two Native Apps: The True Cost in 2026
Building one cross-platform app with React Native or Flutter can save 30 to 50 percent over maintaining two native codebases. But savings depend on your feature set, team, and long-term roadmap. Here is how the numbers actually break down.
Cost & planning · Feb 15, 2026 · 13 min read
How Much Does It Cost to Build a Mental Health App in 2026?
Mental health app development costs range from $25,000 for a basic mood tracker to $400,000+ for a full platform with AI therapy tools and video sessions. This guide breaks down exactly where your budget goes, what HIPAA compliance actually costs, and how to avoid the expensive mistakes we see founders make every quarter.
Cost & planning · Feb 15, 2026 · 14 min read
In-House vs Agency vs Freelance: The Real Cost Comparison for 2026
Choosing the wrong development model can cost you six figures and months of momentum. Here is the honest breakdown of what in-house, agency, and freelance teams actually cost in 2026.
Cost & planning · Feb 12, 2026 · 14 min read
How to Reduce Your Cloud Bill by 40% Without Sacrificing Performance
Most startups overpay for cloud infrastructure by 30 to 50%. Oversized instances, forgotten resources, and default configurations drain your budget. Here are the fixes that save real money.
Cost & planning · Feb 10, 2026 · 14 min read