
Đã đóng
Đã đăng vào
Thanh toán khi bàn giao
I want to launch a lightweight Android app that helps teenagers sharpen their calculation speed. The core of the project is a bank of 500 multiple-choice questions covering mixed operations—addition, subtraction, multiplication, and division , square, cube , percentage all shuffled together. There will be also a payment [login to view URL] speed math tricks. Here is what I need delivered: • A clean, tap-friendly Android interface that feels engaging to teens. • All 500 questions stored locally so the app works offline. • Randomised order and answer shuffling each session to keep practice fresh. • A simple timer and score display so users can track both accuracy and speed. • A summary screen that shows total correct answers, average time per question, and a quick restart option. • Exportable source code (Android Studio / Kotlin or Java) along with an installable APK. Acceptance criteria: the APK installs without crashes on recent Android versions, every one of the 500 mixed-operation questions appears at least once in a full cycle, scores calculate correctly, and the timer functions accurately. If you have experience building small educational apps and can keep the interface polished yet minimal, I’ll be happy to work closely with you and provide the full question set in CSV or JSON—whichever you prefer.
Mã dự án: 40301457
50 đề xuất
Dự án từ xa
Hoạt động 25 ngày trước
Thiết lập ngân sách và thời gian
Nhận thanh toán cho công việc
Phác thảo đề xuất của bạn
Miễn phí đăng ký và cháo giá cho công việc
50 freelancer chào giá trung bình ₹54.762 INR cho công việc này

Hi there, I’ve reviewed your Android app requirements and would love to collaborate on your project. With 5+ years of experience in native Android development, I specialize in building high-performance, user-friendly apps with clean UI, optimized architecture (MVVM/MVI), and seamless API integration. I’ll start with a clear project roadmap, provide regular progress updates, and ensure the app is thoroughly tested for stability and performance before launch. Let’s connect to discuss your app idea in detail — I’m ready to bring your vision to life! Best, Bhargav Android Developer | Kotlin & Java Expert
₹56.250 INR trong 7 ngày
7,0
7,0

I can build your lightweight Android math practice app with 500 offline questions, randomized sessions, timer, scoring, and a clean teen-friendly UI. You’ll receive the APK and complete Android Studio source code (Kotlin/Java) with easy data import from CSV or JSON.
₹56.250 INR trong 7 ngày
5,5
5,5

As an experienced Senior Full-Stack Developer, my journey has been shaped by a deep commitment to creating engaging and impactful applications. I’ve developed numerous educational apps and have even created mobile applications that incorporate AI-powered features - so designing intriguing ways to engage young users is something I excel at. I'm confident that this experience will bring substantial value to your project on the Android platform. In addition to being skilled with Android Studio, your bullet points map closely to my expertise areas, such as ensuring offline compatibility, implementing randomized question orders, and maintaining accurate timing and scoring systems. Through JSON or CSV, I can seamlessly synchronize the questions you provide into the app. Efficiency is an asset I pride myself on, so I'll ensure your answers appear in a full cycle with accurate scoring mechanisms. Leveraging my solid backend knowledge with Node.js and Laravel, working with timer functions and multiple-choice setups would not be an issue at all. I believe in building projects for scalability, allowing your app to evolve as your user base grows. Taking care of deployment complexities is entirely within my scope; hosting setups (like AWS or Google Cloud) wouldn't be a challenge either. In conclusion, partnering with me offers distinct advantages.
₹49.999 INR trong 7 ngày
5,2
5,2

Hi, I came across your project "Teen Speed Math Android App" and I'm confident I can help you with it. About Me: I'm a agency owner with over 8+ years of experience in Mobile App Development, Android, Android App Development, Android Studio, Mobile Development. , and I understand exactly what’s needed to deliver high-quality results on time. Why Choose Me? - ✅ Expertise in required Technologies and 1 year post deployment free support - ✅ On-time delivery and excellent communication - ✅ 100% satisfaction guarantee Let’s discuss your project in more detail. I’m available to start immediately and would love to hear more about your goals. Looking forward to working with you! Best regards, Deepak
₹70.000 INR trong 15 ngày
5,3
5,3

Greetings, I have read the project description I have been working on a similar project in recent time "App Development" I am interested in the work open a chat to discuss requirements in details.
₹50.000 INR trong 7 ngày
4,8
4,8

My name is Neha and for over 9+ years, I've poured my passion for development into creating high-quality websites and mobile apps, with a focus on E-commerce and CMS-based projects. As an experienced Android and Mobile App Developer, I'm confident that I can deliver on all aspects of your Teen Speed Math app - from a clean and engaging interface to a robust backend capable of storing the 500 multiple-choice questions locally so users can access them offline. What sets me apart is my appreciation for design that marries aesthetic appeal with simplicity - an attribute that'd be valuable in the creation of an engaging and intuitive app for teens. As with my previous projects, I guarantee an interface that teenagers will not just find easy to use but one that they'll love coming back to. In addition to my technical skills, I also want to assure you of my commitment to professionalism and client satisfaction. This means transparent communication, adherence to deadlines, thorough testing to meet your acceptance criteria, delivery of the source code (Android Studio/Kotlin or Java), and an installable APK for both functional needs and future-proofing purposes. What's more, my affordable pricing range combined with a three-month free support package further underlines my resolve to help transform your ideas into a reality. Let's make this impactful app together!
₹56.250 INR trong 7 ngày
5,3
5,3

Hello, I’m Karthik, a Mobile & Full-Stack Developer with 15+ years of experience building educational apps and lightweight Android applications. I can develop your Teen Speed Math Android app with a clean, engaging interface designed specifically for quick practice and smooth interaction. Key features I will implement: • 500 mixed-operation questions (addition, subtraction, multiplication, division, squares, cubes, percentages) stored locally for offline use • Randomized questions and shuffled answers each session • Timer and live score tracking for speed and accuracy • Summary screen showing total correct answers, average response time, and restart option • Simple payment integration for unlocking premium content if required • Smooth UI optimized for teens and fast tapping The app will be built using Kotlin in Android Studio, ensuring clean, well-structured code. I will deliver the complete source code, APK, and documentation, and ensure it runs smoothly on recent Android versions. I’ve built several education and quiz-based apps, so I understand how to balance engaging UI with lightweight performance. Happy to review your CSV/JSON question dataset and start immediately. Best regards, Karthik Android App Developer | EdTech Apps 15+ Years Experience ?
₹70.000 INR trong 7 ngày
5,1
5,1

Hi, there. I will develop your Teen Speed Math Android app using Kotlin with a clean, tap-friendly interface designed for teenagers, ensuring smooth offline performance. The app will include all 500 questions stored locally, with randomized question order and answer shuffling each session to keep practice engaging and dynamic. I will implement a simple timer, score tracking, and a summary screen showing total correct answers, average time per question, and a quick restart option. The payment interface will be integrated securely, and the app will be tested to ensure all calculations, scores, and timers function correctly on recent Android versions. I have built 8+ educational Android apps with offline question banks of 300–600 entries, achieving smooth UX and accurate scoring under 2-second response times per interaction. Full source code, Android Studio project, and a working APK will be delivered for easy deployment. If this sounds good, connect in chat and we can start. Thanks, Jaroslav Caprata
₹40.000 INR trong 5 ngày
4,0
4,0

Hi, I can build this as a lightweight Android app with a smooth, teen friendly interface and fully offline question flow. I would implement the app in Kotlin using Android Studio, with all 500 questions stored locally in JSON or Room so it works without internet. Each session can randomize both question order and answer positions, while the app tracks score, accuracy, timer, and average response time correctly. I can also add a simple payment screen if you want it connected to Google Play Billing or kept as a placeholder for the first version. You will receive clean source code, an installable APK, and a structure that makes it easy to add more questions or difficulty levels later. I focus on keeping the UI polished, fast, and simple so it feels engaging without becoming cluttered. I have experience building mobile applications with structured logic and user friendly flows, and I can start immediately once you share the question set in CSV or JSON.
₹50.000 INR trong 7 ngày
2,0
2,0

Hello, I see you want to create a lightweight Android app specifically designed to help teenagers improve their speed in math calculations. Your focus on a clean, tap-friendly interface that keeps teens engaged is clear, and you want the app to work offline with 500 mixed-operation questions shuffled each session. You need a polished app with a timer, score display, and summary screen that accurately tracks performance, plus a payment interface. Ensuring the APK installs smoothly on recent Android versions and that all questions appear in each cycle are important acceptance criteria. The source code must be exportable, preferably in Kotlin or Java. I have built several educational apps using Android Studio and Kotlin where I implemented offline question banks, randomization of quizzes, and real-time scoring with timers. I delivered clean, user-friendly interfaces optimized for touch and engagement, similar to what you require for teens. My experience with local data storage and smooth app performance will ensure your app runs flawlessly offline. I can complete your app within 3 weeks, allowing time for testing on multiple devices and integrating your question set. Let’s discuss how you’d like to share the questions and any other details to get started.
₹41.250 INR trong 7 ngày
1,4
1,4

You need a fast, engaging Android app that helps teens practice speed math without distractions, and I can build a clean, polished solution that runs smoothly on all modern devices. I’ll develop it in Kotlin using Android Studio with a tap-friendly interface designed for young users. All 500 questions will be stored locally for full offline access, with smart randomization so each session feels fresh. The app will include a live timer, instant score tracking, and a clear results screen showing accuracy and average response time, plus quick restart. I can also integrate a secure in-app payment feature if you plan premium content. You’ll receive a stable APK and well-structured source code, fully tested for performance, scoring accuracy, and proper question cycling. Ready to start as soon as you share the dataset. Syed
₹54.850 INR trong 6 ngày
0,6
0,6

Coming from an extensive background in mobile app development, I truly appreciate the significance of educational apps in shaping young minds. With my expertise in Android, Java, and Software Architecture, I'm confident about delivering your Teen Speed Math Android app to offer the engaging and snappy experience you desire. Having catered to diverse clients globally, I understand your need for local storage that enables offline functionality fruition. The 500-question bank will be implemented to ensure each question appears at least once during a full cycle. In addition, a timer and score display will provide not only accuracy tracking but speed as well – essential for any self-improvement journey. In line with your requirements, I will include a summary screen that exhibits total correct answers, average time per question, and a quick restart option. It's important to note that my solutions have had a 100% client satisfaction rate due to my dedication not only in delivery but also post-deployment support. All these skills make me your ideal candidate for this project – ready and excited to collaborate with you!
₹50.000 INR trong 7 ngày
0,0
0,0

Hello, Hope you are doing well. I have experience of 6+ years of in Mobile Applications Development and I have previously made many applications with Interactive Designs and Functionalities. I have reviewed your requirement. I will definitely design & develop a fully responsive & user-friendly application. However, I would like to dig more into your requirements to develop a unique application as per your desires App development:- Olx App Taxi App Dating App. Educational App Multivendor App. Hotel and Restaurant Booking App. Doctors/ hospital management App. Please have a look at my portfolio link : https://www.freelancer.com/u/khushiArt Best Regards Khushbu
₹37.500 INR trong 20 ngày
0,0
0,0

I can build this lightweight Android app for sharpening calculation speed with a clean and engaging interface designed for teenagers. I will implement the full 500-question offline question bank, randomized questions and answer options for every session, a timer with real-time score tracking, and a summary screen showing accuracy and average response time. The app will be optimized to run smoothly on recent Android versions and will include a simple payment interface if required. The project will be delivered with clean, well-structured Android Studio source code (Kotlin/Java) and a working APK. I can also integrate the question set from CSV or JSON and ensure that all 500 questions appear across practice cycles with correct score calculations. I have experience building lightweight mobile applications with clean UI and reliable performance, and I can keep the app minimal, fast, and user-friendly for teenagers. Looking forward to working with you.
₹40.000 INR trong 3 ngày
0,0
0,0

Hi, I’d love to help you build this lightweight, engaging Android speed-math app for teenagers. The concept is clear, practical, and very scalable. Summary screen with: Total correct answers Accuracy percentage Average time per question Quick restart button Math Coverage Addition Subtraction Multiplication Division Squares Cubes Percentages Mixed & shuffled automatically Payment Integration Secure in-app purchase or Stripe-based payment flow (depending on monetization model) Clean upgrade/unlock mechanism Bonus Section for speed math tricks (clean formatted tips screen) Structured architecture so you can easily expand to levels later ⚙️ Technical Approach Kotlin (preferred) + Android Studio MVVM architecture for clean, maintainable code Local question bank via JSON or Room Database Fully exportable source code Signed APK ready for testing or Play Store upload ✔ Acceptance Criteria Assurance APK installs and runs smoothly on recent Android versions All 500 questions cycle properly (no repetition bias) Accurate scoring logic Precise timer functionality Fully tested before delivery If you share the question set (CSV or JSON), I can structure the data model immediately and begin development. Looking forward to collaborating on this educational app. Best regards,
₹56.250 INR trong 7 ngày
0,0
0,0

Hi, I saw your requirement for a mobile application. I can help you develop the app with a clean UI and smooth performance. I have experience in mobile app development and can build the app according to your requirements. I will also provide proper testing and support. If you share the full details of the project, I can start immediately. Looking forward to working with you. Thank you.
₹60.000 INR trong 7 ngày
0,0
0,0

Hello, I would be happy to help you build this Speed Math Android application. I have solid experience in Android and Flutter app development and have successfully developed and deployed multiple applications on the Google Play Store. I specialize in building lightweight, smooth, and user-friendly apps that perform reliably on modern Android devices. For your project, I can create a clean and engaging interface designed specifically for teenagers. The app will store all 500 questions locally so it works completely offline. Each session will randomize the question order and shuffle answer options to keep practice sessions fresh and challenging. I will implement an accurate timer, real-time score tracking, and a detailed summary screen that displays correct answers, total attempts, and average time per question. The app will also include the payment interface and sections for speed math tricks as requested. You will receive the complete Android Studio source code (Kotlin/Java as preferred) along with a fully tested APK. I will ensure the app installs smoothly on recent Android versions and meets all the acceptance criteria. I can also share demo apps I have built and published on the Play Store to demonstrate the quality of my work. I am confident I can deliver a polished, stable, and engaging learning app. I look forward to collaborating with you. Best regards, Vinod
₹45.000 INR trong 7 ngày
0,0
0,0

Hello, I’m Mpumelelo Mabena. I can create a lightweight, user-friendly Android app tailored to teens for sharpening calculation speed. My skill set positions me well to execute this successfully. Your need for a clean, tap-friendly interface with offline access to 500 mixed-operation questions and seamless randomization fits perfectly within my expertise in AI automation and app development. While I am new to Freelancer, I have strong real-world experience and have completed multiple successful projects off the platform. Could you share your timeline or priority features so I can tailor the development process accordingly?
₹39.750 INR trong 30 ngày
0,0
0,0

Hi, I've built educational Android apps before and your brief is well thought-out — the offline-first approach, randomised question order, and timer-based scoring are exactly the right features for a teen audience. Let me tell you how I'd build this. **My proposed stack: Kotlin + Android Studio + SQLite/Room** - Kotlin is the modern Android standard — clean, readable, and easy to maintain - All 500 questions stored in a local SQLite database via Room ORM — fully offline, instant load - Questions and answer options shuffled per session using Fisher-Yates algorithm - Timer runs per-question (configurable) with a visual countdown - Score + accuracy tracked in real-time, summary screen after each session - Payment interface integrated via Razorpay (best for Indian users, no USD conversion friction) **App screens I'll build:** 1. Home / Dashboard — start quiz, view high scores, access speed math tricks 2. Quiz Screen — question + 4 MCQ options, timer, live score 3. Summary Screen — total correct, accuracy %, avg time per question, restart button 4. Speed Math Tricks — static content screen with useful calculation shortcuts 5. Payment Screen — unlock premium content or remove ads via Razorpay **Question bank:** I'll import your CSV/JSON directly into the Room database. No manual entry needed. Deliverables: - Full Android Studio project source code - Signed installable APK ready for Play Store - Brief README for future updates *Timeline: 2-3 weeks*
₹50.000 INR trong 15 ngày
0,0
0,0

am a results-driven Video Editor and Mobile Application Developer with 5+ years of experience in creating compelling visual stories and high-performance mobile apps. I specialize in turning raw footage into cinematic content (YouTube, Social Media, Ads) and developing robust Android/iOS apps.
₹56.250 INR trong 7 ngày
0,0
0,0

Phaphamau, India
Thành viên từ thg 3 15, 2026
₹12500-37500 INR
£250-750 GBP
£250-750 GBP
₹12500-37500 INR
$250-750 USD
₹600-1500 INR
₹600-1500 INR
₹12500-37500 INR
$100-535 USD
$250-750 USD
$15-25 USD/ giờ
₹12500-37500 INR
$250-750 USD
₹600-1500 INR
₹1500-12500 INR
£10-15 GBP/ giờ
$30-250 USD
$10-30 USD
₹600-1500 INR
$750-1500 AUD
$8-15 USD/ giờ