AdSpark – Custom iOS & Android App Development Agency

What We Can Do For You

Services we can help you with

From idea to App Store – we build and launch mobile apps tailored to your audience and goals.

UI/UX Design

We design clean, intuitive, and modern user interfaces that enhance user experience and drive engagement across iOS and Android platforms.

App Development

Our team builds scalable, high-performance iOS & Android apps tailored to your business needs, using the latest technologies and best practices.

App Store Optimization

We help your app rank higher in the App Store and Google Play through advanced ASO strategies, keyword research, and creative optimization.

Analytics & Monetization

Track key metrics, understand user behavior, and maximize revenue with smart analytics and custom monetization strategies integrated into your app.

Maintenance & Support

We provide continuous updates, performance enhancements, and technical support to ensure your app remains reliable and up to date.

AI Features & Automation

Integrate AI-driven tools into your app — from smart recommendations to background automation — to deliver more value to your users.

Featured Case Study

AI Photo Enhancer Case Study

We partnered with a client to design, develop, and launch a cutting-edge photo enhancer app powered by AI. Our team delivered a smooth user experience, integrated dynamic AI filters, and implemented an ASO strategy that brought the app to the top 50 in its category.

Within 2 months of launch, the app saw increased retention, positive reviews, and steady revenue growth across iOS and Android.

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To achieve these results, we followed a streamlined development process. The initial phase focused on in-depth market research, competitor analysis, and identifying the most requested AI-enhancement features. Based on our findings, we crafted a UI/UX design that balanced performance with simplicity, ensuring users could enhance photos with minimal effort.

Once the design was finalized, our development team built the app using native technologies for iOS and Android. We integrated advanced AI models for real-time enhancement and compression, while also ensuring fast load times and offline functionality.

In parallel, we implemented a robust App Store Optimization (ASO) strategy. This included keyword research, optimized metadata, localized listings, and A/B testing of creative assets. As a result, the app ranked in the top 50 for multiple keywords within weeks of launch.

After launch, we continued to monitor analytics, user behavior, and feedback. We iterated quickly, releasing bi-weekly updates that improved retention and reduced churn. Additionally, we tested several monetization models and implemented a freemium approach, which significantly increased LTV without sacrificing user experience.

43% %

Retention after 2nd week

Top Top 50

Ranked in App Store category

Featured Case Study

Translate App Boosts Engagement

We worked with our client to build a lightning-fast image translation app using OCR and AI-powered recognition. Users can take a photo or upload an image to instantly translate text into their preferred language – with full offline support and camera-native integration.

The app was optimized for travelers, students, and international users, offering 100+ languages and seamless UI in both iOS and Android. With built-in analytics, we tracked usage patterns to fine-tune conversion flows and session lengths.

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To improve onboarding and retention, we implemented a clean step-by-step tutorial that auto-detects user language and guides them through the app’s core features within the first session. This increased first-day engagement by over 35%.

We also ran A/B tests on button placements, camera integration speed, and translation results screen layout – all of which contributed to improved usability and reduced bounce rates.

On the backend, we integrated advanced OCR libraries with language-specific preprocessing logic to improve accuracy for complex scripts like Japanese, Arabic, and Georgian. Updates were rolled out weekly based on feedback and performance logs.

As a result, the app maintained a 4.7+ average rating across platforms and reached over 100,000 downloads within the first 3 months of launch.

58 %

Increase in daily active users

100 +

Supported languages

Featured Case Study

Secure Authenticator App

We developed a lightweight yet powerful 2FA & MFA app designed to help users protect their digital accounts through time-based one-time passwords (TOTP) and biometric security. The goal was to make enterprise-grade authentication tools accessible to everyday users.

From design to deployment, we focused on speed, simplicity, and reliability. Users can add accounts via QR scanning, manual key entry, and cloud backups, while enjoying clean UI/UX built for daily use.

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To ensure the highest level of reliability, we performed extensive testing across 15+ device configurations, including edge-case scenarios like offline mode and corrupted token syncs.

Security was enhanced with on-device encryption, biometric unlock (Face ID / Touch ID), and optional PIN fallback. We also added export/import functionality to ease device migration without compromising security.

The app was designed to work entirely offline, storing tokens securely on the device, with no data transmitted to external servers. Despite the minimal footprint, we achieved excellent performance even on low-end devices.

User feedback helped us iterate fast — we prioritized clarity in token labeling, dark mode support, and backup reminders. After launch, the app reached over 50,000 installs organically and became one of the top-reviewed 2FA apps in its category.

99 %

Crash-free sessions

4.8 ★

Average rating on iOS & Android

About Us

We build apps that solve real problems.

We’re a mobile app agency specializing in iOS & Android development — from initial concept to App Store launch. Our mission is to help startups and businesses create apps that are not just beautiful, but scalable and profitable.

At AdSpark, we combine intuitive design, powerful engineering, and smart marketing to turn ideas into successful digital products. Whether you're launching your first app or scaling an existing one — we’re here to help.

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AdSpark by the Numbers

We build mobile apps that scale.

From product strategy to app store launch, our work delivers results. These numbers reflect our dedication to performance, UX, and long-term user value.