Building an app is harder than most people think, but not impossible if you understand what you're committing to

Creating an app requires three things in sequence: learning to code (or hiring someone who can), building the actual product, and getting people to use it. The difficulty depends almost entirely on what kind of app you want to make. A simple to-do list app might take one person three months. A social network with real-time messaging, payment processing, and thousands of simultaneous users could take a team of five people two years. Most people underestimate the third part — the launch and growth — because they focus only on the building.

The honest answer: if you have no coding experience and limited budget, you will either spend six months to two years learning, or you will spend $5,000 to $50,000 hiring a developer. If you already know how to code, you're looking at three to twelve months of your own time, depending on complexity. The barrier is real, but it's not a wall — it's a series of decisions about time, money, and what you're willing to learn.

Key Takeaways

  • A simple app (calculator, note-taking, basic game) takes one person three to six months if they already know how to code; learning to code first adds six to twelve months.
  • You need to choose a platform — iOS, Android, or both — and that choice affects which programming language you learn and how much time you spend.
  • Building the app is usually the easier part; getting your first hundred users and keeping them active is where most projects stall.
  • Hiring a developer costs $5,000 to $50,000 for a simple app and $50,000 to $200,000+ for something more complex, and you still need to manage the project.
  • App stores (Apple's App Store and Google Play) take 30% of revenue and have strict review processes that can reject your app for reasons you didn't anticipate.

What "Building an App" Actually Means

An app is software that runs on a phone or tablet. It's not a website — a website runs in a browser, an app runs on the device itself. That distinction matters because apps have access to your phone's camera, location, contacts, and storage in ways websites don't. It also means you have to build separately for iPhone (using a language called Swift) and Android (using a language called Kotlin or Java), or use a tool that lets you write once and deploy to both.

Building an app involves four overlapping stages: design (what it looks like and how it works), frontend (the code that makes the buttons and screens), backend (the servers that store data and handle logic), and testing (making sure it doesn't crash). For a simple app with no server component — like a flashcard app or a meditation timer — you only need design and frontend. For anything that syncs data across devices or lets users interact with each other, you need a backend too.

Most people think "building an app" means writing code. It actually means deciding what problem you're solving, sketching how the solution works, writing code, testing it on real devices, submitting it to an app store, waiting for approval, and then figuring out why nobody is downloading it. The code is usually 40% of the work.

Learning to Code Versus Hiring a Developer

If you have no coding experience, you have two paths. Path one: learn to code yourself. Path two: hire someone else to do it. Path one takes longer but costs almost nothing. Path two costs money but gets you a product faster — though not necessarily a better one.

Learning to code for iOS takes about six to twelve months if you work on it regularly (ten to twenty hours a week). You would start with Swift, Apple's programming language, using free resources like Apple's own tutorials or paid courses on Udemy or Coursera. Learning for Android takes similar time but uses Kotlin or Java. If you want to build for both platforms without learning two languages, you can use a framework like React Native or Flutter, which lets you write code once and run it on both — but you still need to learn JavaScript (for React Native) or Dart (for Flutter), and you'll hit platform-specific problems that require knowing the underlying language anyway.

Hiring a developer costs $5,000 to $50,000 for a straightforward app (a to-do list, a simple game, a basic social feature). More complex apps run $50,000 to $200,000+. You can find developers on platforms like Upwork, Toptal, or Gun.io, or hire a small agency. The risk: a cheap developer ($20 to $40 per hour) often produces code that's hard to maintain or modify later. A more expensive developer ($100+ per hour) usually produces cleaner code, but you're paying for that quality. Either way, you need to be able to describe what you want clearly, or you'll end up paying for revisions.

Choosing Between iOS, Android, or Both

iOS (iPhone and iPad) and Android are separate ecosystems. An app built for iPhone will not run on Android without being rewritten. This is the first major decision you'll make, and it affects timeline and cost.

iOS is smaller in market share globally (about 25% of phones worldwide), but users in the United States and Western Europe skew heavily toward iPhone. iOS users also spend more money on apps. If you're building a paid app or an app with in-app purchases, iOS is often more profitable per user. The downside: you need a Mac computer to develop for iOS, and Apple's review process is stricter and slower (typically three to five days, sometimes longer).

Android is larger in market share (about 70% of phones worldwide) and more open — you can sideload apps without going through the Play Store. But Android devices vary wildly in screen size, processor, and OS version, so testing is more complex. Google's review process is faster (usually a few hours) but less thorough, which means more buggy apps make it through.

Most developers start with one platform and add the other later. If you're learning to code, pick the one you use yourself — you'll test constantly on your own device. If you're hiring, ask the developer which platform they specialize in; forcing them to build for both simultaneously usually means slower progress and higher cost.

The Real Timeline: From Idea to Your First Users

Here's what the timeline actually looks like for a simple app (something like a habit tracker, a note app, or a basic game) if you're learning to code:

  • Months 1–3: Learn the basics of your chosen language and framework. Build small practice projects. You're not building your app yet; you're learning the tools.
  • Months 4–6: Design your app (sketch screens, decide what buttons do what). Start building the actual product. This is slower than you expect because you'll hit problems you didn't anticipate.
  • Months 7–9: Finish the core features. Test on a real device. Find bugs. Fix them. Test again.
  • Month 10: Submit to the app store. Wait for review (three to five days for iOS, a few hours for Android). Get rejected for something you didn't expect. Fix it. Resubmit.
  • Month 11+: Your app is live. Now figure out how to get people to download it. This is where most projects stall.

If you're hiring a developer, the timeline compresses but doesn't disappear. A simple app takes two to four months with a good developer working full-time. You still need to spend time describing what you want, reviewing progress, and testing. If you're vague about requirements, the timeline stretches.

What Happens After Launch

Most people think the hard part is building the app. It's not. The hard part is getting people to use it and keeping them coming back. An app with zero users is not a product; it's a hobby project.

Getting your first hundred users usually means telling people you know, posting on social media, and hoping some of them care enough to download it. Getting your first thousand users requires a strategy: maybe you write a blog post about the problem you're solving, or you reach out to communities where those people hang out, or you pay for ads. Getting ten thousand users requires either a lot of time, a lot of money, or a genuinely novel idea that people want to share.

You also need to maintain the app. When Apple or Google releases a new OS version, your app might break. When users find bugs, you need to fix them. When you want to add features, you need to build them. An app is not a one-time project; it's an ongoing commitment. Many developers build an app, launch it, and then abandon it because they underestimated this part.

Tools That Make Building Easier (But Not Easy)

No-code and low-code platforms like FlutterFlow, Bubble, or Adalo let you build an app by dragging and dropping components instead of writing code. They're genuinely useful for simple apps, and they cut the timeline from months to weeks. The tradeoff: you're limited to what the platform lets you do. If you want to build something unusual or need fine-grained control, you'll hit a wall.

Cross-platform frameworks like React Native and Flutter let you write code once and deploy to both iOS and Android. They're faster than building separately, but they're not magic — you still need to learn to code, and you'll still hit platform-specific problems. They're best if you're hiring a developer, because a good developer can move faster with them.

App templates and starter kits let you buy a pre-built app and customize it. This works if your idea is close to an existing template (a dating app, a fitness tracker, a marketplace). It doesn't work if your idea is unusual. Templates also often come with poor code quality and licensing restrictions.

The Money Question: What Does It Actually Cost?

If you're learning to code, the direct cost is near zero — most learning resources are free or cost $10 to $50. The real cost is your time: six to twelve months at ten to twenty hours a week is 600 to 2,400 hours. If you value your time at $25 per hour, that's $15,000 to $60,000 in opportunity cost.

If you're hiring a developer, expect $5,000 to $50,000 for a simple app. More complex apps run $50,000 to $200,000+. You'll also pay $99 per year to Apple to publish on the App Store, and $25 one-time to Google to publish on Google Play. If your app uses cloud services (a database, push notifications, analytics), you'll pay monthly fees — usually $10 to $100 per month while you're small, scaling up as you grow.

If you want to market your app, budget $500 to $5,000 for ads, depending on how many people you want to reach. Most indie developers don't spend money on ads; they rely on word of mouth and organic growth, which is slower but free.

Frequently Asked Questions

Can I build an app without knowing how to code?

Yes, using no-code platforms like Bubble or FlutterFlow. You won't write code; you'll drag and drop components. The tradeoff is that you're limited to what the platform supports. For simple apps (a to-do list, a basic marketplace), this works well. For anything unusual, you'll hit a wall.

How much does it cost to hire someone to build my app?

A simple app costs $5,000 to $50,000. More complex apps cost $50,000 to $200,000+. The price depends on the developer's location and experience, how complex your idea is, and how clearly you can describe what you want. Cheaper developers are faster to hire but often produce lower-quality code.

How long does it take to get an app approved by Apple or Google?

Apple typically takes three to five days, sometimes longer. Google usually takes a few hours. Both can reject your app for reasons you didn't anticipate — Apple is stricter about design and privacy, Google is stricter about security. Budget time for at least one rejection and resubmission.

What's the difference between building for iPhone and Android?

iPhone (iOS) uses Swift, Android uses Kotlin or Java. iOS is smaller in market share but users spend more money. Android is larger but more fragmented — devices vary in screen size and processor. Most developers start with one and add the other later.

What happens if my app fails to get users?

Most apps do. You'll have spent time and money building something nobody wants. The best way to avoid this is to test your idea with real people before you build — talk to potential users, show them sketches, see if they'd actually use it. Building first and hoping people show up is how most projects fail.