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Full cycle development of mobile apps.

With experienced cross-functional team based in Europe, we build mobile experiences that stand the test of time.

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Services

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From concept to app in highest quality.

From concept to app in
highest quality.

Make your new idea a reality or improve already existing app for iOS or Android. With our extensive expertise and dedication to quality, we develop apps that exceed expectations.

Personalized research

We aim to understand your needs and perform personalized research to deliver practical insights.

User-centric design

Human Interface Guidelines or Material Design, we ensure that our apps are built around the user.

iOS App Development

Building intuitive, high-performing apps for Apple devices using the latest tools and APIs.

// iOS
import UpssterLabs

func createApp() -> some View {
  UpssterLabs.launch("iOS", locale: "Plovdiv")
  return Text("Crafted with care by Upsster Labs")
}

func refreshApp() -> some View {
  UpssterLabs.update("iOS", "features")
  return Text("Upsster Labs: Always evolving")
}

Android App Development

Creating fast, responsive apps for Android with modern frameworks and best practices.

// Android
import upssterlabs.UpssterLabs

fun createApp(ctx: Context): View {
  UpssterLabs.launch("Android", "Plovdiv")
  return TextView(ctx).apply { 
    text = "Crafted with care by Upsster Labs" 
  }
}

fun refreshApp(ctx: Context): View {
  UpssterLabs.update("Android", "features")
  return TextView(ctx).apply { 
    text = "Upsster Labs: Always evolving"

Backend Development

Developing robust backend to solve different tasks, enable custom functionality, and integrate AI models.

Maintenance

Supporting apps after launch to ensure flawless operation and full functionality in new OS releases.

Features

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Great apps are made of well-implemented features.

Every function is a stroke in a painting of an app, engineered to make a difference. With our extensive experience in many features and components, no challenge is too big.

User Authentication & Secure Login
Allow your users to sign up and log in quickly, securely, and effortlessly with modern authentication methods like email, phone, biometrics, or social media accounts.
See all features
Real-Time Push Notifications
Engage your audience with timely, relevant, and highly personalized notifications that drive retention and user action.
See all features
In-App Purchases & Subscriptions
Seamlessly integrate purchases, premium content access, or subscription models to unlock new revenue streams directly inside your app.
See all features
Advanced Search & Intelligent Filtering
Empower users to find exactly what they need instantly with dynamic search, smart filtering, and personalized suggestions.
See all features
Chat & Messaging Systems
Enable users to communicate instantly with real-time, private, or group messaging powered by modern chat technology.
See all features
Social Sharing & Viral Growth Tools
Turn every user into an ambassador with easy-to-use social sharing features that expand your app’s reach organically.
See all features
Communities, Forums & User Groups
Build a sense of belonging with in-app communities, discussion forums, or member groups that foster deep user engagement.
See all features

User Authentication & Secure Login
Allow your users to sign up and log in quickly, securely, and effortlessly with modern authentication methods like email, phone, biometrics, or social media accounts.
See all features
Real-Time Push Notifications
Engage your audience with timely, relevant, and highly personalized notifications that drive retention and user action.
See all features
In-App Purchases & Subscriptions
Seamlessly integrate purchases, premium content access, or subscription models to unlock new revenue streams directly inside your app.
See all features
Advanced Search & Intelligent Filtering
Empower users to find exactly what they need instantly with dynamic search, smart filtering, and personalized suggestions.
See all features
Chat & Messaging Systems
Enable users to communicate instantly with real-time, private, or group messaging powered by modern chat technology.
See all features
Social Sharing & Viral Growth Tools
Turn every user into an ambassador with easy-to-use social sharing features that expand your app’s reach organically.
See all features
Communities, Forums & User Groups
Build a sense of belonging with in-app communities, discussion forums, or member groups that foster deep user engagement.
See all features

Offline Mode & Data Caching
Keep your app functional even without an internet connection, delivering seamless experiences under any condition.
See all features
Custom Admin Panels & CMS Systems
Control your app’s content, users, promotions, and analytics with powerful, easy-to-use back-end dashboards.
See all features
Loyalty Programs, Badges & Reward Systems
Reward loyal users with personalized recognition, achievement badges, and points systems that drive deeper engagement.
See all features
QR Code Features (Scanning & Generation)
Use QR codes to seamlessly link the real world to your app for promotions, quick actions, or sharing.
See all features
Augmented Reality (AR) Experiences
Wow your users with immersive, interactive AR features that blend digital objects into the real world.
See all features
AI-Powered Personalization & Automation
Use artificial intelligence to create smarter, more responsive apps that learn and adapt to user behavior.
See all features
Dark Mode and Theme Personalization
Give users control over how they experience your app with stylish dark mode and customizable themes.
See all features

Location Services & Smart Mapping
Integrate real-time maps, geolocation tracking, route optimization, or location-based features to enhance user interaction and experiences.
See all features
Multi-language Localization
Expand your reach worldwide by delivering personalized, localized experiences for users in any language.
See all features
Integrated Payment Systems
Allow your users to pay easily and securely with integrated cards, wallets, subscriptions, invoicing, and marketplace transactions.
See all features
Photo & Video Editing Tools
Empower users to create and customize stunning visual content directly inside your app with built-in editing capabilities.
See all features
Live Streaming & Video Playback
Enable users to broadcast live events, attend sessions, or enjoy high-quality on-demand video experiences inside your app.
See all features
Content Scheduling & Automation
Allow users to plan posts, releases, or actions ahead of time with smart scheduling and automation features inside the app.
See all features

Recent projects

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Spine app.

Spine is a free social network for holistic health, spirituality, and personal growth. Share thoughts, voice memos, or events, connect with like-minded people, discover healing services, and explore inspiring podcasts - all in one supportive, filter-free community.

Spine app.

Records app.

Records is an iOS music player app focused on playing full albums. Its interface is designed to be immersive and user-friendly, highlighting album art and allowing users to navigate through a purely visual experience.

About

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What makes us great is
our team.

We are based in Plovdiv, Bulgaria. With years of working together, we have overcome many challenges. Our experience helps us solve problems and achieve great results.

Teodora approaches every project with a strong focus on both user experience and visual design. Her work centers on transforming complex ideas into intuitive mobile products that are functional, engaging, and enjoyable to use.
Teodora
UI/UX Designer
Passionate about technology and product innovation, David founded Upsster Labs to help businesses turn ideas into successful mobile applications. His expertise spans native iOS and Flutter development, with a strong focus on performance, scalability, and long-term product quality.
David
Founder, Lead iOS Developer
Evel specializes in building reliable, user-focused mobile applications. Combining strong technical expertise with attention to product quality, he plays a key role in delivering Android and Flutter solutions that are built to perform and designed to last.
Evel
Lead Android Developer

Teodora approaches every project with a strong focus on both user experience and visual design. Her work centers on transforming complex ideas into intuitive mobile products that are functional, engaging, and enjoyable to use.
Teodora
UI/UX Designer
Passionate about technology and product innovation, David founded Upsster Labs to help businesses turn ideas into successful mobile applications. His expertise spans native iOS and Flutter development, with a strong focus on performance, scalability, and long-term product quality.
David
Founder, Lead iOS Developer
Evel specializes in building reliable, user-focused mobile applications. Combining strong technical expertise with attention to product quality, he plays a key role in delivering Android and Flutter solutions that are built to perform and designed to last.
Evel
Lead Android Developer

More about us

FAQs

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You asked, we answered.

Still have questions? Feel free to reach out to us, and get answers to any questions regarding app development.

New

Full cycle development of mobile apps.

Full cycle development of mobile apps.

Full cycle development of mobile apps.

Get in touch

From concept to app in highest quality.

From concept to app inhighest quality.

Personalized research

User-centric design

iOS App Development

Android App Development

Backend Development

Maintenance

Great apps are made of well-implemented features.

Great apps are made of well-implemented features.

User Authentication & Secure Login

See all features

Real-Time Push Notifications

See all features

In-App Purchases & Subscriptions

See all features

Advanced Search & Intelligent Filtering

See all features

Chat & Messaging Systems

See all features

Social Sharing & Viral Growth Tools

See all features

Communities, Forums & User Groups

See all features

User Authentication & Secure Login

See all features

Real-Time Push Notifications

See all features

In-App Purchases & Subscriptions

See all features

Advanced Search & Intelligent Filtering

See all features

Chat & Messaging Systems

See all features

Social Sharing & Viral Growth Tools

See all features

Communities, Forums & User Groups

See all features

Offline Mode & Data Caching

See all features

Custom Admin Panels & CMS Systems

See all features

Loyalty Programs, Badges & Reward Systems

See all features

QR Code Features (Scanning & Generation)

See all features

Augmented Reality (AR) Experiences

See all features

AI-Powered Personalization & Automation

See all features

Dark Mode and Theme Personalization

See all features

Location Services & Smart Mapping

See all features

Multi-language Localization

See all features

Integrated Payment Systems

See all features

Photo & Video Editing Tools

See all features

Live Streaming & Video Playback

See all features

Content Scheduling & Automation

See all features

Spine app.

Spine app.

Spine app.

Records app.

Records app.

Records app.

What makes us great isour team.

What makes us great isour team.

Teodora

David

Evel

From concept to app in
highest quality.

What makes us great is
our team.

What makes us great is
our team.