“How to make an app” is one of the most searched questions in tech. Most of the answers are either a sales pitch or a coding tutorial. This is neither. It's the order of decisions you'll face, in plain language, whether you end up building the app yourself or hiring a team.
The short answer
Mobile app development has eight steps: define the one problem the app solves, check that people want it, choose how to build it (no-code, cross-platform or native), design the screens, build the app and its back end, test on real phones, publish to the app stores, and keep improving it after launch.
Step 1: Decide the one job your app does
Write it as a single sentence: [this person] can [do this] without [the current hassle]. For example, “A salon customer can book a slot without phoning.”
If you need three sentences, you're describing three apps. Pick one. Everything else goes on a list called “later.”
Step 2: Check that people want it
Do this before a single line of code is written. Talk to ten people who'd use the app and ask how they solve the problem today. Put up a one-page website with a sign-up form. Or run the service by hand for a month using WhatsApp and a spreadsheet.
It feels slow. It's far quicker than building something nobody opens twice.
Step 3: Choose how to build it
| Approach | What it is | Good for | Trade-off |
|---|---|---|---|
| No-code builder | Drag-and-drop tools such as FlutterFlow, Glide or Adalo | Testing an idea, simple internal tools | You hit limits as features grow |
| Cross-platform | One codebase for Android and iPhone, built with Flutter or React Native | Most business and startup apps | Very device-heavy features need extra work |
| Native | Separate apps in Kotlin for Android and Swift for iPhone | Games, heavy camera or AR use, anything performance-critical | Two codebases, so a higher cost |
For most businesses, cross-platform is the sensible default. You get both stores from one build, and the result feels like a normal app to the person using it.
Step 4: Design the screens before the code
Start with the flow: what does a new user see first, and what are the fewest taps to get the main job done? Sketch every screen, even on paper. Then turn the sketches into proper designs.
Count the screens while you're at it. The number of screens is a rough but useful guide to how big the project is.
Step 5: Build the app and the back end
An app has two halves. The first is what sits on the phone. The second is the back end: the server and database that store accounts, orders and messages.
There's usually a third piece people forget, which is the admin panel. Somebody on your team has to approve listings, issue refunds and see reports. If it's missing from the quote, ask why.
This is also the stage where payments, maps, OTP login and push notifications get connected.
Step 6: Test on real phones
An app that runs perfectly on the developer's new phone can still fail on a three-year-old budget handset with patchy mobile data. That handset is what many of your customers carry.
Test on small screens, old Android versions and slow connections. Then give it to a small group of real users through Apple's TestFlight or Google Play's testing tracks before the public launch.
Step 7: Publish to the stores
You'll need a developer account on each store. At the time of writing, Google Play charges a one-time US$25 registration fee and Apple charges US$99 a year.
Both stores ask for a privacy policy, screenshots and a description, and both review what you submit. Rejections on the first attempt are common and usually easy to fix, so leave room in your launch date.
One firm piece of advice: open the developer accounts in your own company's name. Don't publish under your developer's account, however convenient it seems.
Step 8: Keep it alive
Launch is the start. Android and iOS release new versions every year, and apps need updating to keep up. Users report bugs. You'll want new features.
A common rule of thumb is to set aside 15 to 20 percent of the build cost each year for maintenance.
What does mobile app development cost in India?
Price guides published by Indian agencies in 2026 put app budgets anywhere from around ₹2 lakh for a simple app to ₹1 crore and beyond for a complex platform. That's a wide range, because “an app” can mean a booking tool or a full marketplace.
Keep in mind that these figures come from companies that sell app development, so use them as a rough guide. The things that move your own number are:
- The number of screens and user types
- Whether you need a custom back end and admin panel
- Integrations such as payments, maps and chat
- Design quality and animation
- One platform or both
Ask for a feature-wise estimate. It lets you remove features to fit a budget instead of arguing about the total.
Do you need an app at all?
Sometimes the answer is no. If customers would use it once a month, a fast mobile website or web app does the same job for less, and nobody has to install anything.
An app earns its place when people will use it often, when you need push notifications, or when it relies on the camera, GPS or offline access.
Frequently asked questions
Can I make an app without coding?
Yes. No-code builders handle simple apps well. Expect to rebuild with code if the app takes off and needs custom features.
How long does it take to make an app?
A simple app takes a couple of months. A larger one with a custom back end takes four to six months or more.
Should I launch on Android or iPhone first?
In India, most smartphone users are on Android, so start there if you must choose. A cross-platform build gives you both.
How do apps make money?
Through subscriptions, in-app purchases, advertising, commission on transactions, or simply by making it easier for customers to buy what you already sell.
Planning an app?
Send us your one-sentence idea from Step 1. We'll tell you which build approach fits, what a first version should include, and what it would cost. Read about our mobile app development work, get a quote, or message us on WhatsApp.