Flutter development mobile apps

A great example of how Flutter development helps create cool educational apps — Hedgie: English Grammar Test. This app makes learning English easy and fun. Users take tests, get explanations of errors, and monitor progress.

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‍Flutter development made the platform fast, convenient, and smooth on both Android and iOS. Cool animations, a nice interface, and high speed have all helped the service become a good tool for learning English.

The world of mobile applications does not stand still — every year they become faster, more convenient and more beautiful. In 2025, the audience expects maximum comfort from them, and businesses expect universal solutions that work equally well on all devices.

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Developers also want to create cool services without unnecessary headaches. And this is where it comes into play flutter development — a tool that can cope with all these tasks. Let's see why he stays in the top.

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• One code means two apps. Why write two versions of the same service when you can create one? With Flutter, you can use a single code for iOS and Android, which saves time and budget. At the same time, the app looks and works natively on both platforms — without compromising on quality.

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• Speed at maximum speeds. Flutter works in the Dart language, which is compiled into native code. This means that the service starts at lightning speed, smooth animations don't slow down, and the interface remains responsive even on less powerful devices.

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• Flexible and stylish design. Flutter gives you complete freedom in design. Do you need an Android style? We use Material Design. Do you want an iOS-like interface? Cupertino widgets to help. And if you want something unique, customization is unlimited here.

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• Fast development without expectations. With Hot Reload, you can instantly see code changes without restarting it. This greatly speeds up the work process, and the built-in DevTools help analyze performance and find bugs in no time.
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• ‍Google support and an active community. Flutter is a Google product, which means it is regularly updated and improved. Plus, it has a huge community of developers who share their experience, features, and ready-made solutions.

Every service starts with an idea. But one idea is not enough — it's important to understand what users need, study the market, highlight the product's advantages and choose the right technology to create it.

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Let's see how developers turned the concept into a full-fledged platform and what role they played in this mobile development on Flutter.

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Where did Hedgie's idea come from

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The creators of the platform noticed that many people study English, but face problems in grammar. Most services are either overloaded with theoretical material or offer monotonous tasks without interactivity. We needed to find a balance — to create an exercise machine that would make learning grammar easy, understandable and fun.

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Market research and audience needs

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Before starting development, the team studied competitors and analyzed user expectations. Surveys and tests have shown:

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• People prefer to learn grammar in a playful way rather than just read the rules.
  
  
• It is important to see the error analysis right away and get quick feedback.
  
  
• The platform should work without delays and be available on any device.

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A unique approach: play and comfort‍
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To make learning exciting, we've added gamification elements. Users complete levels, monitor their progress, and get rewards for answering correctly. This motivates you to move on and not quit classes.

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And the friendly Hedgie, a virtual assistant who gives advice and support, helps them with this. This format makes learning grammar not only useful, but also really fun.

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Hedgie is a great example of how a well-thought-out idea, market analysis and the right technological choice help create a product that is in demand. Flutter mobile development made the service fast, and game mechanics made learning interesting.

The app is designed to make learning English grammar easy and fun. From the first lessons, users see progress and begin to understand the rules better.

• Interactive tests with error analysis. There is no boring learning here — instead, users take live tests, where they immediately get an explanation of their mistakes. This approach helps you memorize grammatical structures faster and understand the language better.

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• Gamification: we learn by playing. To keep learning from becoming a chore, the program includes levels, rewards, and personalized assignments. You can track your progress, earn bonuses, and compete against yourself to improve your results.

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• ‍It works the same on all devices. The app is built on Flutter, so it works great on both iOS and Android. Regardless of the device, it remains fast, stable and comfortable to use.

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How monetization and business model work

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To keep the service available to most users, the platform uses a freemium model. This means that basic features are available for free, while additional features are available through subscriptions or in-app purchases. Let's see how it works.
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One of the key game mechanics is the life system. Each user has 10 attempts: for each error, they lose one. If lives run out, access to tasks is temporarily blocked and you'll have to wait 2 hours for them to recover. This approach makes learning more informed and interesting.

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But there is another option — to restore lives right away. This can be done through subscriptions or in-app purchases, which is a major part of the business model. Due to the balance between free features and premium features, users can study comfortably, and the project can develop.

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Free features

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Any user can install the program for free and use the main features: take grammar tests, get error analysis in real time and track progress. This way you can check how convenient the service is and see the first results without investments.

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Additional subscription features

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A premium subscription offers more options. It removes life restrictions, provides an opportunity to reset progress and start over, and offers exclusive characters. This makes the learning process more flexible and personalized.

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When creating the platform, the team tried to make it convenient and pleasant to use. A simple interface, clear navigation, and stylish visuals help you focus on learning rather than understanding complex settings.

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• Intuitive and logical interface. The design is designed so that each element is in its place. Navigation is simple and straightforward, you can easily find the features you need and quickly switch between sections. The minimalist style is not distracting, and convenient buttons make interaction with the service natural.

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• Colors, fonts, and animations. The color palette has been chosen to create a friendly atmosphere. Important elements are highlighted in accent shades, and clear fonts make it easier to understand information. Smooth animations make interaction with the platform enjoyable and add dynamics.‍

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• Accessibility and convenience on any device. The service is designed taking into account the principles of accessibility: contrasting colors, clear icons and an adaptive interface make it comfortable for everyone. The service looks and works equally well on smartphones and tablets.

Before launching a full-fledged educational platform, it is important to check whether the idea is in demand. The team started by creating MVP, a basic version with key features. Thus, the product quickly entered the market, collected the first reviews and, based on them, the team finalized the service.

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Focus on the essentials: tests, levels, progress
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At the start, only the most important features were added: interactive tests, a level system and progress display. This minimalism helped users immediately immerse themselves in training and evaluate the benefits of the service.

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Data storage: cloud sync
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To continue learning from any device, the platform was integrated with Firebase and Supabase.

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Analytics: What do users like?
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Google Analytics helps the team understand how people are using the platform. What are the most popular sections? Where do users stay longer? What are the challenges? Data analysis helps improve the product and make training more convenient.

Creating an app is only half the battle. It's important to make sure it's stable, user-friendly, and really helpful in learning. Therefore, the team carried out thorough testing, refinement and eliminated the shortcomings.

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Usability tests

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Each device is unique: different screens, operating systems, performance. To make Hedgie look and work equally well on smartphones and tablets, the team conducted a series of usability tests. They helped to check the correctness of the interface, ease of navigation and download speed.

Minor bug fixes

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After the tests, bugs were fixed, the design adaptability was improved and the service was optimized.

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UX improvement based on feedback

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After the launch of the MVP, the team analyzed the feedback from the first users and their behavior in the app. The data showed which interface elements were complex, where navigation difficulties were encountered, and on which screens people most often closed the service. Based on the data obtained, the developers have optimized the design and simplified interaction with the main functions.

Even the best product needs to be promoted. To attract new audiences and increase Hedgie's visibility, the team took an integrated approach. App store optimization, advertising campaigns, and a loyalty program have helped increase the number of users and make the service popular.

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ASO: How Hedgie draws attention on the App Store and Google Play

To help the audience find the app faster among other educational platforms, the team paid special attention to ASO (App Store Optimization). The keywords were carefully selected, a clear and attractive description was created, and the visual design — screenshots and an icon — immediately reflect the essence of the service. This approach increases visibility and helps potential users immediately understand its value.

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Social media ads and Google Ads

To introduce the platform to a wide audience, targeted ads were launched on social media and Google Ads. Vivid visuals, dynamic short videos, and clear calls to action have attracted the attention of those who want to improve their English grammar skills. Advertising campaigns were set up in such a way as to reach users who would really benefit from the service.

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Loyalty programs and recommendation mechanisms

Hedgie not only attracts new users but also encourages them to share the service with friends. The referral program rewards invitations, and in-game bonuses encourage greater engagement. This approach helps to expand the audience and keep it at a high level of activity.

In this article, we looked at how to create the Hedgie: English Grammar Test educational app, from idea to finished product, as well as the stages of testing, marketing, and monetization.

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The key point that helps the service be cross-platform and in demand is flutter development. This tool makes creating services easier and provides excellent performance across platforms.

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Each project is unique, and Beetrail we create solutions that meet your goals. We work on the full development cycle, from analysis to technical support, so you can focus on what matters. There is no need to worry about technical aspects, we will do everything for you.

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Share your idea with us and we'll help you turn it into a successful product.