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Design & Development

App Development

We build stable, high-performance, retention-focused iOS/Android apps, prioritizing crash-free rates and a fast experience.

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Metrics we optimize
Crash-free▲
Load Time▼
Retention▲
ANR▼

An app's success isn't measured by its features alone, but by its stability, speed and smoothness. Crashes, freezes (ANRs) and slow launches directly hurt retention.

At Peax, we build mobile apps that put performance and stability first, continuously measuring quality with analytics and crash monitoring to create an experience that supports retention.

Our approach

iOS & Android development

Scalable apps with native quality.

Performance & stability

A fast, crash-free experience.

Analytics & crash monitoring

Infrastructure that measures quality continuously.

Measurement & SKAN integration

Accurate attribution setup.

CI/CD & QA

A safe, fast release cycle.

Maintenance & growth

Sustainable development.

Metrics we focus on

We build apps against quality and retention metrics:

Crash-free RateShare of sessions without a crash.
ANR RateFreeze rate.
Load TimeLaunch and load speed.
RetentionHow many users stick around.
App SizeApp download size.
SatisfactionStore rating.

Frequently Asked Questions

How does your app development process work?

It starts with a needs analysis. After the architecture and technology decisions, development moves forward with CI/CD and QA discipline. We set up analytics and crash monitoring from day one and ensure accurate attribution through measurement and SKAN integration. After launch, we keep monitoring performance data and continue maintenance and growth work; we treat development as a continuous cycle, not a one-time delivery.

Do you build for both iOS and Android?

Yes. We build scalable apps with native quality for both iOS and Android. We decide on the platform and technology together, based on your product's target audience, budget and roadmap. Our priorities are the same on both platforms: fast launch, a smooth experience and a high crash-free rate. Store compliance and release management are also within our scope.

Do you provide post-launch maintenance and support?

Yes. Maintenance and growth are an ongoing part of the service. With crash monitoring and analytics in place, we measure quality continuously and prioritize and fix crashes, freezes and performance issues based on data. We keep up with OS updates and store policy changes, and ship new features in planned release cycles aligned with your product roadmap.

Which metrics do you use to track app quality?

Crash-free rate, ANR rate, launch and load time, app size, retention and store rating are our core quality indicators. We track these metrics release by release, so we can see clearly how an update affects stability or speed. Because crashes and slow launches directly hurt retention, we read technical quality metrics alongside growth metrics.

Key terms for this service

Guides that explain the metrics in our reports, with formulas and worked examples:

Ready to build a stable, fast app?

Let's talk about your app needs in terms of performance and retention on a free 15-minute call.

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