Joe Tuan
Joe Tuan
Founder, Topflight Apps
May 19, 2024

How do you develop an app that gets the attention it deserves? We’ll answer this and other questions bound to pop in your quest for building a winning app.

Table of contents:

    1. Think Marketing First
    2. Know Your Users
    3. Build a Rapid Prototype
    4. Develop an MVP
    5. Make Your App Stand Out
    6. Pick a Distribution Model
    7. Listen to Your Customers
    8. Educate Yourself on App Development Cost
    9. Follow Your Users Cross-Platform


Think Marketing First

  • How will my app reach customers?
  • What’s the average CAC (customer acquisition cost) for my app?
  • What marketing budget do I need to start getting traction?

Companies often leave these questions hanging in the air until the custom mobile app is ready. However, we recommend starting your app journey by answering them. Without users, your app will plummet to the bottom of the app stores.

That’s why first, you need to find out what budget will get you early adopters.

Starting with marketing also makes sense from the technology perspective. How you promote your app will dictate the integrations you’ll need to support.


Finger pointing at a Subscribe button on a custom developed app


  • Will my app need deep linking?
  • Do I want to include mobile ads?
  • Do I make content searchable outside the app?

Deep linking

Deep linking is a technology that has been on the market for a while. Yet, not many companies have embraced it. Put simply, deep linking allows you to bring customers to a specific place in your app where they can get immediate value.

Let’s say you’ve built a recipe app, and a customer taps on your ad of a tuna sandwich recipe. That tap should take her to the app store and once the app downloads, directly to that recipe. That’s the whole purpose of deep links.

Mobile advertising

Mobile SDKs integrated into your app will let you furnish users with ads that you may offer to turn off with an in-app purchase. That’s a decent revenue model, and there are plenty of services to choose from, e.g., AdMob and AdColony.

Many mobile ads providers supply you with everything you need for deep links too.

Also Explore: Best Telemedicine Apps to Automate your Medical Practice

Make app content searchable

Both Apple and Google have tools to index your in-app content, so it becomes available through search. If we continue our example with the recipe app, a search result for make a tuna sandwich could take the user right to this recipe in your app.

Search results linking to apps appear in Google Search (on Android) or Spotlight (on iOS).

new rapid prototyping ebook

Know Your Users

You will have to picture your ideal user after you’ve started on your app marketing strategy.

  • Who are my app users?
  • How often will they use the app?
  • Is my app’s USP enticing enough?

These and a slew of other questions about your target audience will leave you with lots of assumptions. It’s then your job to go out and challenge all these ideas by asking people that match your ideal user profile.

You’ll end up with a detailed profile of the ideal app user (the more details, the better) and a bunch of assumptions about how they will use the app.

Build a Rapid Prototype

Now it’s time to really test your assumptions about how the app will serve your target audience. To do that, one of the first steps towards custom mobile app development is an interactive prototype that users can click-through in a browser or on their mobile devices.

An app prototype can be low- or high-fidelity. Its purpose is to always check if you’re creating an engaging experience for your users.

There are plenty of tools to develop a prototype (like Invision or Adobe XD) and to field it with customers (like or Userbrain).

We wrote at length on rapid prototyping but to give you the gist, its beauty is:

  • you preserve your development budget while experimenting with UX
  • it allows you to iterate based on feedback and get to market faster
  • you can use it to get investors to listen

You might be thinking you need to take everyone’s feedback to heart when developing an app.  That’s not true, and doing so can be downright dangerous. If people are shouting for a new feature but they still stick with your app as-is, take comfort.  That means they find value in it even without the extra features.

After launching your MVP (more in the next section), you should “measure” and “learn” by listening, but listen to actions more than words. Use feedback as clues, but use data analytics tools to verify them. Analytics such as app metrics and heatmaps allow you to see where people are engaging most on your app and where they’re dropping off.  

A measuring strategy which is just as educational is the simple act of watching people use the app. The best custom mobile app development companies know that if users aren’t using something, then they need to get rid of it. If it’s a poor user experience getting in the way of them converting, improve it.  Again, with custom mobile app development, the key is to differentiate what users say from how they act, and to be especially careful when it comes to new feature requests. These must be viewed with different lenses than bug reports and complaints about poor user experience.  Adding new features more often than not is about increasing an existing user’s lifetime value or expanding the addressable audience size, and not something you should do to placate your initial target market.

 More on validating your idea first:

Develop an MVP

Once you’ve validated the UX, you’re ready to move from a prototype to developing an MVP. The MVP will include just enough features to justify releasing the app into the wild. The feedback that will follow will help you iterate your app further.

Are you ready to build an MVP? First, read our guide to how to hire someone to develop an app

The most common misconception of first-time entrepreneurs is that they’ll succeed with their business goals because they have a great idea.  The truth is, being a successful app entrepreneur or a provider of app solutions is more about having a winning strategy and executing persistently on user feedback than it is about having a great idea.  This has been a constant truth in startup circles (read about the “build-measure-learn” cycle).  However, we still see too many entrepreneurs commission app development companies to overbuild their MVP.  

Related: Agile App Development Process: Building a Winning App

My advice? Instead of overbuilding, get to market as soon as possible with as few features as possible, test them out with real users, then nimbly make changes based on user feedback.  We launch at least 10 production-ready web apps and mobile apps per year, and we can tell you that the “build” of the “build-measure-learn” development cycle is always the easiest part. The harder part is the uncertainty that comes after, where every entrepreneur has to figure out how to stay true to their vision while listening to users and adapting the MVP into something they love

Setup continuous delivery

To get into this mentality of constant change, you need continuous delivery.


Abstract Update button to showcase continous delivery in custom mobile app development

Continuous delivery includes tools and methods that allow your app development team to ship updates non-stop. All features and bugs that have been verified automatically become app updates with minimal effort from developers.

As a result, users get to play with new features as soon as they have been tested.

Related: DevOps CI/CD implementation Guide

Use competitive technologies

To keep your app evolving, you want to ensure it’s backed by modern technologies that give you an edge. For instance, Android apps used to be developed in Java, but today Kotlin is a clear winner, allowing coders to create Android apps faster.

To make sure your tech stack is competitive:

However, it’s also important to select compatible technologies whether that’s python in healthcare or bank level encryption for fintech app development or blockchain for medical apps. For example, let’s talk about incorporating AI. In 2020, there’s no hotter idea than adding artificial intelligence to anything, and with good reason.  It’s that rare trend that’s already a clear value-add to everyone on the continuum (unlike say cryptocurrency). If a hospital adds an AI-driven medical scribe, or if a brokerage firm adds an AI-driven financial advisor, the business and the end-users both experience cost savings.  However, many entrepreneurs come to us to show their business requirements and their desire for an AI-driven app idea without a clear data acquisition strategy. If you launch an MVP with a freshly-minted AI algorithm, we can pretty much guarantee the algorithm will be unintelligent.

Related: Pose Estimation: How To Track Human Movements in Real Time 

On the other hand, when we talk to entrepreneurs that have a winning strategy to obtain large amounts of de-identified data, we get really excited!  And that means, during the initial months of custom mobile application development, the algorithm will be trained with real data so it’s ready to perform by the time we launch the MVP.  

A few extra tips on selecting compatible technologies:

See which technologies we’ve used with past clients.

Protect customer data

Whether you’re developing a healthcare app or a social media app like Facebook that shares user data with advertisers, privacy laws are becoming more stringent than ever.  With certain industries like Fintech and healthcare (the areas our firm focuses on), liability is higher at the early stages. You need to set up compliance at the early stages, encrypting data in transfer as well as data at rest.  Also, most of the smaller startups we worked with had to deal with GDPR compliance in 2018. Protecting personal privacy is now becoming a cost of business for startups, not something that only a handful of big businesses need to deal with. 

A few things you should keep on the radar when considering data security:

  • Privacy legislation knowledge, e.g., HIPAA, GDPR
  • Using privacy-as-a-service solutions
  • Adhering to best practices (e.g., data encryption & support for https)

Related: HIPAA App Development: The Ultimate Guide


Mobile app vulnerabilities in custom mobile app development

I still remember the days when well-known startups, like the social networking app Path, used an insecure connection to upload user contacts into the cloud. Today, mistakes like that could cost startups a business.

The importance of personal privacy in 2020 doesn’t mean that you need to become a data privacy guru and hire your own Gilfoyle. There are myriad services out there now that help app developers handle privacy and are accessible to entrepreneurial budgets.  Example: a few years ago, it cost a whopping $2,000+ per month to become HIPAA compliant on Amazon Web Services. Fast forward to today, and the cost of getting a BAA signed by Amazon for HIPAA compliance is comparable to hosting costs for any other type of app.  Look into Privacy-As-A Service platforms like Amazon as a cost of business (like accounting or legal), so that you can remain focused on the only thing you should be focused on day-to-day, which is getting traction.

List of App Development Guides

  1. Pharmacy App Development Guide 
  2. Patient Portal App Development
  3. Crypto Token Development Guide
  4. DeFi App Development Guide
  5. Medical Mobile App Development
  6. On Demand Pediatric App Development
  7. Mobile App Development Outsourcing

Buckle in for the long-run, building a mobile app is a journey, not a sprint.

Also Read: How Long Does It Take to Make an App for Android and iOS?

Make Your App Stand Out

Despite all iterations, there always remain some core features that make your app unique. And there are many ways to make sure your app has them.

Use the full potential of a mobile OS

Successful apps always make the most of the latest features in iOS and Android. Supporting new features helps you smooth out user experience as people hop between system apps and your application.

For example, in Android 10, you can add a seek bar to an audio notification to control playback. Other welcome additions are the dark mode and access to system settings right within your app.


Instant Android app vs. regular app in custom mobile app development

Have you also considered instant experiences that users can access without installing an Android app?

iOS 13 lets you optimize your app for the dark mode and use Apple Sign-in – these are just a few options that your app can benefit from. You may also choose to  integrate with Siri or Google Assistant to let users access the app with voice.

Also Read: How to create a cryptocurrency exchange

Integrate with other apps

Another way to beef up your app is to integrate it with third-party apps. That way, users can access your app’s content, e.g., photos, from other apps, or jump straight into your app to perform some action.

For instance, if you are developing an iOS photo editing app, you can make your photo filters available in the native photo app. The idea is to make your app’s main feature accessible from other apps.

Log issues and user actions

As you keep iterating your app, it may help to have logging functionality in place. App logs help identify bugs and expedite the whole QA process. And analytics (like Google Analytics) services give you a decent picture of how people use the app.

Check out our portfolio

Pick a Distribution Model

custom mobile app development distribution model

Depending on whether you’re developing an app for the general public or for internal use or even just building a chatbot, it will have a different distribution model. You can develop an app by uploading it to an app store or make it available as a download from your server.

App Store Distribution: ASO

One thing you should remember when making your app available via an app store is ASO. App Store Optimization is a huge topic. Let’s just say there are quite a few things that influence your app visibility in the app stores:

  • screenshots and videos
  • description and keywords
  • icon and the name of the app

We’re barely scratching the surface of ASO here. You may opt for one of the app store tracking services, like Sensor Tower or App Annie, to track the competition and execute on your app marketing strategy.


App Store Optimization for custom mobile app development

Some of the services for app store analytics will also allow you to A/B test the description and other elements of your app store listing to drive conversions.

In-house App Distribution

If the app targets only your employees and doesn’t have a demo account, you can still make the app available via a link.

You will need to procure enterprise licensing for such in-house apps and make sure the app has periodic access to the internet. Plus, you will need to set up an MDM (mobile device management) solution at your place.

Ad-hoc and Custom Apps

These distribution models are for app testing and for some advanced in-house app management. In 99 percent of the cases, you’ll be distributing your app via an app store.

Listen to Your Customers

Once the app is out and people start using it, you need to be ready to handle reviews. It certainly helps if you’ve hooked the app with a user feedback SDK during development. There’s plenty to choose from: Braze, Apptentive, UserVoice.

These platforms help you answer your customers’ concerns before they voice them through app reviews. You can also help customers better understand your product by setting up a knowledge base with one of these solutions.

Educate Yourself on Custom Mobile App Development Cost

App development cost, just like ASO, is an intimidating topic. We’ve covered that in detail in a blog post about understanding the true costs of developing an app. Let’s recap what people often miss when budgeting app development:

  • failure to include a web admin app into the budget
  • underestimated yearly maintenance cost
  • overlooked quality assurance

Admin dashboard

For modern custom mobile apps, it’s critical to be always on, serving fresh content to users. If you want to remain in control over the content and users, you need a web interface where you can review flagged content, block certain users, etc.


Admin dashboard

And by the way, you can use bootstrap admin dashboards to lower the app cost.

Related: How to develop a dashboard website

Maintenance cost

In our practice, yearly maintenance takes 15 to 25% of the total app cost. That includes fixing any issues with the app, server, hosting, etc. The problems may arise after an external library has been updated.


We’ve discovered that mobile development teams often ignore QA hours necessary to deliver a customer-ready solution. In that scenario, all testing is carried out by a client who may not be best equipped to catch all issues.

The more use cases an app has, the more mobile app testing it needs. If you have to test yourself, remember that a negative use case is also a use case. Let’s say someone is trying to sign-in with a wrong email and password. What error do you show?


Notification errors during developing custom mobile app

Do you let them know there’s no such email? Do you offer to restore a password?

Testing all of that tends to add up.

Some additional tips on getting to know your numbers: 

Consider some cost-savings alternatives, like building an SPA (single page application).

Follow Your Users Cross-Platform

Have you noticed anything particular about apps that become popular? How they become available on smartwatches, tablets, TVs, and other devices? I think it’s safe to say that this tendency has become everybody’s expectation these days:

My app should follow me to every device I use.

Look at the Continuity feature in the Apple ecosystem: you start a document on an iPhone and pick it up on a Mac or iPad.

cross platform custom mobile app development

As soon as your app starts getting some traction, we recommend building separate versions of the app that support those other devices. Make sure to include only those features that make sense on each particular platform.

There’s no use in a calendar app on Apple Watch if you expect the user to add events on a tiny interface. However, calendar notifications and even agendas make total sense.

Also Read: A Guide to App Store Optimization for Mobile Apps

Got Questions?

What you’ve read is an outline that will get you through major pitfalls of developing a mobile app. What should you expect when you actually start your app project? A myriad of nuances. Let’s say you are thinking about developing a mental health app:

  • Should we support voice control to get user attention off the screen?
  • What SDK should we pick for video calls?
  • Should we optimize UI for seniors?

Questions like these start accumulating pretty fast. How about we start answering them together today?

Related Articles:

  1. Mobile App Design Guide
  2. Mobile App vs Website: Right One for You
  3. Mobile App Frameworks: The Complete Guide
  4. AI App Development Guide
  5. How to make a location based application
  6. How much does app design cost
  7. How to Build an Educational App
  8. Healthcare App Development Cost: The Complete Breakdown
  9. Conversational AI for the healthcare industry
  10. How to Integrate your health app with EHR

[This blog was originally published in July 2020, but has been updated for relevance]

Frequently Asked Questions


What services and tools can you recommend?

Here are a few tools and services to get you started. App Annie and SensorTower for researching your competition; Branch and AppsFlyer for in-app marketing (deep linking, attribution, in-app analytics); AdMob and MoPub for serving ads in your app; TapStream to analyze user engagement; MixPanel and Localytics to understand user behavior.

How can I test an app prototype once it's built?

We recommend UserTesting, UserZoom, or PlaybookUX. These user testing platforms allow you to define various user criteria and test the prototype with your target audience.

Does Apple allow publishing an app to the App Store if only registered and authenticated users can access its features, and registration happens outside the app?

Yes, but you should enable a demo mode to let unregistered users explore the app’s features. Alternatively, you can opt for an ad-hoc distribution model that allows you to make the app available outside the App Store.

How do I minimize the damage from negative reviews in the app stores?

Besides offering your customers a smooth and glitch-free in-app experience, consider integrating the app with services like Apptentive or UserVoice. These tools offer an easy way to provide support to users inside the app and work as a database for all negative user reviews.

What are the most often overlooked app development cost factors?

App owners often miss to factor in such things as a web admin application used to manage content inside the app and maintenance costs.

Joe Tuan

Founder, Topflight Apps
Founder of Topflight Apps. We built apps that raised $165M+ till date. On a mission to fast-forward human progress by decentralizing healthcare and fintech.
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