The answer isn't always what you think. Here's a framework based on your audience, budget, and business model.
It's one of the first questions every founder asks: should we build a web app or a mobile app? The internet is full of generic advice ('it depends on your users'), but here's a concrete framework that actually helps you decide.
Build a web app first if: your primary user interaction is work-related (people use it at their desk), your users need to input or manipulate significant amounts of data, you need rapid iteration cycles (web deploys instantly, app stores take days), you're validating a new concept and need to pivot quickly, or your budget is under $100K.
Build a mobile app first if: your core value proposition requires device hardware (camera, GPS, sensors), your users need offline functionality, push notifications are critical to engagement (fitness, delivery, messaging), your audience is primarily mobile (B2C in emerging markets), or real-time location is part of the product.
Build both simultaneously if: you have $200K+ budget and 6+ months timeline, your product has distinct mobile and web use cases (e.g., field workers on mobile, managers on web), or you're in a market where mobile-first competitors already exist.
The cost reality: a quality web app costs $40K-$120K. A quality native mobile app (one platform) costs $60K-$150K. Both platforms: $120K-$250K. Cross-platform (React Native): $80K-$180K for both platforms. These ranges assume a professional team — halve them for MVPs, double them for enterprise-grade.
The progressive web app (PWA) middle ground: modern web apps can now send push notifications, work offline, and be installed on home screens. For many use cases, a well-built PWA eliminates the need for a native app entirely. We've seen PWAs achieve 85% of native app engagement at 40% of the cost.
Our recommendation for most startups: start with a responsive web app. Validate your market, get paying customers, use the revenue to fund a native mobile app when you have clear evidence that mobile-specific features will increase retention or revenue. Building both from day one is the most common way to burn through funding without achieving product-market fit.
Ready to put these ideas into action?
Let's discuss how we can apply these strategies to your business.