Mobile app vs website: which does my business need?
Build a website if customers find you via search, comparison shop, or convert on a single visit (90% of small businesses). Build a mobile app only if you need repeat engagement (multiple times per week), offline access, device APIs (camera, GPS, push notifications), or have an audience that already wants to install your brand on their phone. For most small businesses the answer is website — apps require 100x more marketing investment to drive installs.
The decision framework
Answer 4 questions: (1) Do customers find you through Google search? (2) Do they engage once per visit or multiple times per week? (3) Do you need device hardware (camera, GPS, offline)? (4) Will customers want to install your brand on their phone?
If you answered yes-1, once, no-3, no-4: you need a website. That is 90% of small businesses.
If you answered yes-2 (repeat weekly engagement) or yes-3 (device hardware) or yes-4 (installable brand): consider an app, but probably as a Progressive Web App (PWA) first, not a native app.
The cost reality
Native iOS + Android app: $30,000-$150,000 minimum to build, plus App Store + Play Store review cycles (1-3 weeks each), plus mandatory updates every 6-12 months as OS versions deprecate APIs, plus marketing to drive installs (typically $5-$30 per install in 2026).
Website: $1,997-$11,997 to build, no app stores, no marketing-per-install, organic discovery via search.
PWA (installable web app): $2,997-$5,997. Best of both worlds for B2B and rapid-launch consumer apps. No app store required.
When apps make sense
Real use cases: ride-sharing (Uber needs GPS + push), food delivery (DoorDash needs push + GPS), social (Instagram needs camera + push), gaming (needs offline + GPU), banking (needs Face ID + push for fraud alerts), fitness tracking (needs HealthKit/Google Fit), e-commerce with weekly purchases (Amazon).
If your business is a service business, professional practice, restaurant, retail with monthly purchases, or B2B with quarterly purchase cycles: app is overkill. Build a great website with mobile-first design instead.
PWA as the middle ground
Progressive Web Apps install from the web (no app store), work offline, support push notifications, and access device hardware via the browser. Cost: similar to a website. Distribution: organic search + 'Add to Home Screen' prompt.
Best for: B2B internal tools, productivity utilities, repeat-engagement consumer apps that do not need the full native UX. ThatDeveloperGuy ships PWAs starting at $1,997.
Frequently asked.
Do I need both an app and a website?
Most businesses need just a website. If you build an app, you still need a website for SEO discovery and app marketing.
How long does it take to build a mobile app?
PWA: 2-4 weeks. Cross-platform (React Native, Capacitor): 6-10 weeks. Native iOS or Android: 8-14 weeks. Plus 1-2 weeks app store review.
How much does it cost to maintain an app?
Plan for $500-$2,000/mo per app for OS update compatibility, bug fixes, and new feature requests. Plus app store fees ($99/yr Apple, one-time $25 Google).
Will an app help my SEO?
Mostly no. App content is not crawled by Google. Some app indexing exists but is far less effective than web SEO. Build a strong website first.
What is the difference between a PWA and a native app?
PWA installs from the web, native installs from the app store. PWA is ~70-80% of native performance, costs 30-50% less. PWA cannot access every device API (Apple in particular restricts Bluetooth, NFC) — native required for those.
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