“We need an app” is one of the most common sentences we hear from founders, and it hides a real decision. An app can mean a website that works well on a phone, an installable web app, or a native app from the App Store and Google Play. The three cost different amounts, take different amounts of time and suit different products.

Getting this choice right early saves you from paying for something you did not need. This guide explains the options, gives you a decision table, and tells you what to check before you commit.

The three options in plain language

1. A responsive web app

A web app that adapts to any screen. Users open it in a browser on desktop or phone. There is nothing to install and nothing to submit for approval. For many business products, such as client portals, dashboards and internal tools, this is all that is needed.

2. A progressive web app (PWA)

A web app that can be added to a phone’s home screen so it looks and feels more like an app. It is a middle path with lower cost than native, though some device features and notification behaviour vary by phone and operating system.

3. A native mobile app

An app listed in the App Store and Google Play, with full access to device features. Bubble’s native mobile builder lets you build web and native apps from one editor with a shared backend, and it has been evolving through beta, so check Bubble’s current status for the features you need.

Decision table

What native adds, and what it costs you

• Extra build work. Native screens are a separate interface from your web version, even with a shared backend.
• Store requirements. Developer accounts, store listings, review processes and updates that must pass approval.
• Longer feedback loops. A web change goes live instantly. A native update may wait for a review.
• Ongoing maintenance. Operating system updates can require changes.

None of that is a reason to avoid native when you need it. It is a reason to be sure you do. Our cost guide explains how platform choice affects the price.

The smart route for most products: web first

For most new products, the better sequence is to launch a responsive web app, watch how real people use it, and add native later only if usage shows a need. You learn faster, spend less before you have proof and avoid building features nobody opens on a phone. The backend and data model you build for the web can usually carry over, especially on a platform designed that way. See what an MVP really costs and what to cut before you build.

Questions to ask yourself

1. Where will my users be when they use this, at a desk or on the move?
2. Is there a feature that only works natively, such as reliable push alerts or the camera?
3. Do customers expect to find me in an app store?
4. Do I need in-app purchases?
5. Can I validate the idea first with a web version?

A short example

Frequently asked questions

Can I start with web and add mobile later?

Yes, and it is often the best approach. Plan the data model carefully so it can serve both.

Will a responsive web app look unprofessional on a phone?

Not if it is designed for small screens from the start. Responsive design is a core part of every build.

How much more is native?

It depends on scope. Builds start at $3,500, and adding native is a separate piece of work that your PRD will price explicitly. Our Discovery Sprint gives you both options costed side by side.

How long does a launch take?

Typically 2 to 6 weeks depending on scope. See realistic build schedules.