Issues Detection is Easy.

Remediation is Hard.
We are fixing that.

Issues Detection is Easy.

Remediation is Hard.
We are fixing that.

Issues Detection is Easy.

Remediation is Hard.
We are fixing that.

The developer observability platform for Android and Kotlin Multiplatform apps. Understand production issues, diagnose root causes and scale your mobile apps with AI-native remediation

The developer observability platform for Android and Kotlin Multiplatform apps. Understand production issues, diagnose root causes and scale your mobile apps with AI-native remediation

The developer observability platform for Android and Kotlin Multiplatform apps. Understand production issues, diagnose root causes and scale your mobile apps with AI-native remediation

Trusted by leading companies to speed up issue resolution and reduce downtime

From Detection to Accurate Remediation

From Detection to Accurate Remediation

Other tools collect logs and traces. We capture runtime data at the architecture level. That's why our AI fixes are accurate, not generic.

Runtime Data

Thanks to Koin's embeeded instrumentation we capture component resolution, timing, scopes and lifecycle automatically. No manual traces needed.

Architecture Visibility

Dependency graphs, modules, component, relationships, resolution chains. We map how your app is wired so when something breaks we know exactly where and why.

Fix Patterns Knowledge Base

Accurate fixes require understanding Kotlin, Android component lifecycles and best practices. We ahve 9 years of accumulated patterns.

Powered by Koin — the #1 dependency injection framework for Android

25%

all native Android apps

20M+

montly downloads

130

countries · #1 USA

How Kotzilla works (3 steps)

How Kotzilla Works
(3 steps)

Automatic Issue Detection

Kotzilla analyzes your apps for crashes, slow startups, and performance issues.


Kotzilla analyzes your apps for crashes, slow startups, and performance issues.

Fix with Contextual Prompts

Generate prompts with root cause details to fix issues using your AI code assistant.

Validate Fixes & Monitor

After fixes, Kotzilla tracks runtime data and alerts you if regressions occur

Real problems. Real fixes.

See how teams use Kotzilla.

Real problems. Real fixes.

See how teams use Kotzilla.

Kotzilla gives Android and KMP teams full visibility into production issues and the context to fix them with or without AI

Crash reporting

Unified crash reporting across all KMP targets, including iOS with fully desymbolicated stack traces. One SDK configuration.

Performance Monitoring

Identify slow startups, ANRs, and frozen screens. Correlate them with blocking ViewModels or heavy components resolutions.

Improve Maintainability

Visualize Koin dependency graphs while ensuring real-time compile safety for maintainable and runtime-safe code.

Accelerate Fixes with AI

Generate contextual prompts for Copilot, Claude, or other AI assistants to pinpoint root causes and apply fixes faster right in your IDE.

Full Production Visibility

Get real-time insights on components, threads, and memory to quickly detect and understand app issues and crashes.

Fast Root Cause Analysis

Full session, component, and performance context to quickly resolve production issues and minimize user impact.

0

%

Lower monitoring costs

with essential runtime data capture

0

%

Reduced cost of fixes

by catching issues during development

0

x

Faster MTTR in production

with contextual AI-assisted resolution

Why Android developers are 
moving beyond Firebase

Why Kotlin Developers Are Switching from Firebase

Firebase Performance Monitoring has limits. Here's why Koin developers are choosing Kotzilla for deeper, actionable insights into performance issues and crashes.

Features

Kotzilla

Firebase

Components & Dependency Graph View

Components & Dependency Graph View

Built-in for Koin

Built-in for Koin

Not automatic (manual traces required)

Not automatic (manual traces required)

Thread Visibility & Performance

Thread Visibility & Performance

Built-in (main and background threads)

Built-in (main and background threads)

Limited (manual traces required)

Limited (manual traces required)

Root Cause Analysis

Root Cause Analysis

Dashboards for issues and root cause analysis
tools

Dashboards for issues and root cause analysis
tools

Not directly supported

Not directly supported

User Sessions Performance View

User Sessions Performance View

Graphical timeline, session-specific, real-time

Graphical timeline, session-specific, real-time

May be delayed or partial

May be delayed or partial

Instrumentation Effort

Instrumentation Effort

Minimal (automatic + API optional)

Minimal (automatic + API optional)

Moderate to high for custom traces

Moderate to high for custom traces

Crash Reporting in Context

Crash Reporting in Context

Unified crash & performance data with full session context

Unified crash & performance data with full session context

No unified view with Crashlytics

No unified view with Crashlytics

Cross Platform Support

Kotlin-only (Android + KMP using Koin)

Broad (Android, iOS, web)

Cross Platform Support

Kotlin-only (Android + KMP using Koin)

Broad (Android, iOS, web)

Cross Platform Support

Kotlin-only (Android + KMP using Koin)

Broad (Android, iOS, web)

Fix issues with AI

Fix issues with AI

Contextual prompts for any AI-code assistant, for all issues

Contextual prompts for any AI-code assistant, for all issues

“Generate AI Insights” available for Crashlytics only

“Generate AI Insights” available for Crashlytics only

Trusted by Koin developers worlwide

Real teams, concrete results, from faster startups to fewer crashes in production.

Ferdinand S.

Android Team Manager @Automotive Industry

“Combines the advantages of open source software and professional support with an excellent customer service”

Sébastien Balard

Senior Dev Android/iOS @Libertyrider

“I found no other tool to independently monitor our SDKs deployed to third-party applications. It is crucial to get independent data to understand our SDKs' users challenges."

Laurent Paquot

Senior Android Engineer @Worldline

“We had already started simplifying parts of the app, and with the Kotzilla Platform, we could clearly see the benefits. User sessions are stable and responsive, with optimal performance and a smoother overall experience. Enabling the Kotzilla SDK in the release build made a big difference. We'll keep monitoring regularly as we grow."

Romain Zanon

Technical Leader @Canal+

“Kotzilla helped us improve startup times by over two seconds on some low-memory devices, even after applying Android's Baseline Profiles. We can also monitor multiple applications under the same package name separately, which gives us much clearer insights."


The Kotzilla Platform 

The Kotzilla Platform 

The AI-native observability platform built on Koin. Detect, understand, and fix production issues across Android, Kotlin Multiplatform, and Compose Multiplatform with a single SDK

Koin IDE Plugin

Visualize Koin dependency graphs, navigate your code, detect issues early and fix them directly in Android Studio or IntelliJ with AI-Prompts. Works for both Koin DSL and Koin Annotations usages.

Visualize Koin dependency graphs

Detect config errors, performance issues, and crashes before runtime

Generate contextual prompts for Copilot, Claude, or other AI assistants

Execute prompts directly in Android Studio to get accurate fixes faster

Integrate seamlessly with Kotzilla Console for additional analysis

Kotzilla SDK

A lightweight SDK with Koin-level visibility that powers accurate contextual prompts by collecting runtime crash and performance data, all with minimal overhead.

Lightweight and efficient app performance and crash monitoring

Uses Koin containerization for smart and relevant data collection

Gathers detailed performance metrics automatically

Powers contextual AI prompts for both console and IDE workflows

Minimal integration overhead

Kotzilla Console

A web platform to monitor crashes, performance bottlenecks, and architectural issues with visual insights, AI-assisted fixes and dashboards to track issues, regressions, and overall app health

Automatically detects ANRs, crashes, slow screens and components

Architecture diagrams with runtime data for root cause analysis

Graphical views for fast investigation and analysis

Performance and regression analysis reports

Accelerate root cause analysis and resolution with AI guidance

Fix crashes, ANRs, frozen screens and slow app startups with Kotzilla

Built for Koin. Get full visibility and accurate AI-powered fixes of production issues with a simple setup of the Kotzilla SDK.

No credit card required

Cancel anytime

Fix crashes, ANRs, frozen screens and slow app startups with Kotzilla

Built for Koin. Get full visibility and accurate AI-powered fixes of production issues with a simple setup of the Kotzilla SDK.

Fix crashes, ANRs, frozen screens and slow app startups with Kotzilla

Built for Koin. Get full visibility and accurate AI-powered fixes of production issues with a simple setup of the Kotzilla SDK.

The developer observability platform for Android & Kotlin Multiplatform apps. From detection to accurate remediation.

Powered by Koin

The developer observability platform for Android & Kotlin Multiplatform apps. From detection to accurate remediation.

Powered by Koin

The developer observability platform for Android & Kotlin Multiplatform apps. From detection to accurate remediation.

Powered by Koin

Trusted by Kotlin Teams

See how mobile development teams are using Kotzilla to improve their app performance

Ferdinand S.

Android Team Manager @Automotive Industry

“Combines the advantages of open source software and professional support with an excellent customer service”

Sébastien Balard

Senior Dev Android/iOS @Libertyrider

“I found no other tool to independently monitor our SDKs deployed to third-party applications. It is crucial to get independent data to understand our SDKs' users challenges."

Laurent Paquot

Senior Android Engineer @Worldline

“We had already started simplifying parts of the app, and with the Kotzilla Platform, we could clearly see the benefits. User sessions are stable and responsive, with optimal performance and a smoother overall experience. Enabling the Kotzilla SDK in the release build made a big difference. We'll keep monitoring regularly as we grow."

Romain Zanon

Technical Leader @Canal+

“Kotzilla helped us improve startup times by over two seconds on some low-memory devices, even after applying Android's Baseline Profiles. We can also monitor multiple applications under the same package name separately, which gives us much clearer insights."