We build beautiful, intuitive mobile applications that help you stay organized, healthy, and positive every day.
Each app is crafted with attention to detail, focusing on user experience and beautiful design.
Subscription Tracker
Never miss a payment again. Track all your subscriptions, get reminders before billing, and see your spending analytics at a glance.
Positive Mindset Widget
Start each day with intention. Get one curated affirmation daily, right on your home screen. Journal your thoughts and save your favorites.
Bill Calculator
Split bills like a pro. Calculate tips instantly, split among friends, and share results. Supports multiple currencies and rounding options.
Hydration Tracker
Stay hydrated and watch your plant grow! Track daily water intake, get smart reminders, and maintain healthy habits with gamification.
twentythree Dev is a solo development studio passionate about creating mobile applications that solve real problems. We believe in clean design, intuitive interfaces, and apps that just work.
Every app we build is crafted with Flutter, ensuring beautiful, native performance on both Android and iOS. We focus on what matters most: helping you be more organized, healthier, and happier.
Every line of code is written with care
Built around your daily needs
Optimized for performance
Have questions, feedback, or just want to say hi? We'd love to hear from you. Reach out and we'll get back to you as soon as possible.
"Building apps that make a difference, one line of code at a time."