Custom Children's app development Freelancer

If you’re looking to develop a children’s app, Brian Kayfitz Development Corp. can build it for you. As a father himself, Brian understands the importance of creating safe, engaging, and educational apps for kids. From games to learning tools, he has helped design and develop a variety of apps focused on child development.

He currently builds mobile apps using Flutter, taking advantage of its cross-platform capabilities for iOS, Android, and web. For more complex game mechanics and 3D environments, Brian also develops in Unity.

Lifestyle Apps Worked On:

Alphaben

Alphaben is a literacy app for kids that helps motivate and improve their reading comprehension.  Brian has integrated the native eBook reader into the primary Flutter app via a Kotlin embedded view.

Mobile app development Agency

Honeycomb: Math Puzzle

Math Honeycomb is a fun math crossword game built in Flutter. It was built to help children improve their math skills. It features a dynamic directed graph generation algorithm that can create infinite puzzles that are always fun and engaging to play.

educaiton app development agency
education freelancer brian
Flutter Freelancer

Looking to build a children’s app? Brian can help.

Frequently Asked Questions About Children’s App Development

Brian Kayfitz is a children app developer that has worked on several children’s apps focused on education, creativity, and digital organization:

  • KidQ – A digital life storage app designed to document children’s achievements and milestones through a timeline. This was a large-scale project developed over several months, featuring functionality such as photo management, custom video creation, and secure content storage.

  • Alphaban – A German-language app built with Flutter, aimed at helping children learn to read through interactive exercises and phonics-based learning.

  • Honeycomb Math Game – A math practice game created to help children improve their mental math skills in a fun, engaging way. Instead of solving repetitive equations, children solve puzzles involving addition and subtraction. Developed in Flutter within a week, this MVP app was inspired by Brian’s own son, who also contributed by designing the app’s logo.

These are just a few examples of the children’s apps Brian has developed. His experience spans educational tools, memory-keeping platforms, and interactive games, all built with performance, usability, and engagement in mind.

The cost of developing a children’s app depends largely on its complexity.

For example, a simple math puzzle game can be built in as little as a week, whereas a more interactive storytelling app with animations, voiceovers, and advanced features could take a month or more to develop. Ultimately, the timeline and cost will vary based on the features, design requirements, and overall scope of the project.

Yes, as an app developer, I have integrated apps with various backend servers, CRMs, agents, and other systems to ensure your application functions as intended securely, efficiently, and reliably.

Brian is available post launch, to help address any bugs or future features. As he works on an hourly basis, he can address any small or large issues in a timely manner. 

A kid app developer is typically an individual freelancer or contractor who specializes in building apps for children. Such as Brian Kayfitz, who offers personalized service, lower costs, and direct communication. This is ideal if you’re looking for a more hands-on approach or working with a smaller budget. Experienced kid app developers like Brian Kayfitz can still deliver high-quality apps with the expertise of a full team.

On the other hand, a children’s app development agency is usually a larger organization with a team that includes project managers, designers, developers, and QA testers. Agencies are often better suited for larger projects or clients who need a full-service solution from concept to launch. However, they usually come with higher costs due to overhead and staffing.

Yes, security especially when dealing with children’s images are top of mind when developing apps for children. We build with privacy-by-design principles, including secure data storage, encryption, and parental permission systems. We can also run the app’s code through third party to ensure all packages used are secured and compliant. 

Yes, security especially when dealing with children’s images are top of mind when developing apps for children. We build with privacy-by-design principles, including secure data storage, encryption, and parental permission systems. We can also run the app’s code through third party to ensure all packages used are secured and compliant. 

There are many categories of children’s apps, each with a different goal. Some popular types include:

  1. Educational Apps – Apps that teach numbers, letters, colors, shapes, reading, math, etc. They are often used by parents and schools. Brian has worked on Alphaben a German app which helps children learn to read.

  2. Interactive Storybooks: Animated or touch-responsive stories that build reading skills. Often narrated with sound and visual effects. These apps are easy to build if you get the right design.

  3. Creative Apps: Apps that focus on Art, music, drawing, or building tools. Examples: coloring books, music games, animation tools.

  4. Puzzle & Logic Games: Memory games, matching games, problem-solving tasks. Help improve cognitive skills and focus. Brian has build Honeycomb Math which is a math crossword puzzle, helping children in solving mental math questions.

  5. Behavioral or Emotional Learning Apps: Teach emotional intelligence, empathy, social behavior, and mindfulness. Example: apps for deep breathing or identifying emotions.

  6. Physical Activity Apps: Encourage movement and exercise. Often use AR or the camera to get kids active.

  7. Parental Control Companion Apps: Help parents monitor usage or guide their child’s digital experience.

  8. Children’s Life Memories: Capturing the moments that matter most. From a child’s first drawing to memorable classroom activities, keeping track of these precious memories can be overwhelming. Brian has worked on a project specifically designed to help parents, caregivers, and teachers easily capture, store, and organize children’s life moments all in one secure app. Whether it’s daily school photos, milestone achievements, or shared classroom experiences, the app allows users to store photos, notes, and memories in an organized and shareable way perfect for tracking growth and creating digital keepsakes.


As a senior Flutter developer, I’ve found that most apps written in Flutter take anywhere from one week to a few months to develop.

For core functionality, it’s rare for a project to extend beyond six months. Of course, ongoing work such as new feature additions, maintenance, and bug fixes can continue after the initial launch. However, from idea to launch, the typical development timeline ranges between 1 week and 6 months, depending on the app’s complexity and scope.

Any app development that is done by Brian Kayfitz for your company is owned by you. Typically NDA is signed prior to a first meeting, to ensure your app idea stays yours.  

Yes, if your app is written in a native language such as Objective-C, Kotlin, or Swift or in a cross-platform framework like Unity or Flutter Brian can add new features. He can also troubleshoot and resolve any bugs or issues your users may be experiencing to ensure the highest app quality. For a senior app developer, no problem is too big or too small to handle.

If you have incomplete code, features that need to be added to an existing app, or code that hasn’t been written in a clean, maintainable way, Brian can help.

As a Flutter expert, Brian can perform in-depth code reviews to identify issues, finalize development, and improve your app’s structure and performance. As a Flutter mentor, he can also guide your team on best practices to ensure long-term stability.

Whether you’re looking to launch your children’s app or resolve issues in your existing kids app, Brian an experienced senior app freelancer can help you move forward with confidence.

  • Same quality as any native technology such as Swift or Kotlin.
  • Reduce time of development by having one code based for iOS, Android and the Web. 
  • Reduce costs with cross platform mobile app development.