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Mobile App Development

Mobile App Maintenance & Scaling Services

Mobile App Maintenance & Scaling

Quecko provides the engineering support necessary to keep your mobile apps running at peak performance. From updating codebases for new iOS and Android releases and fixing critical bugs to refactoring legacy systems, profiling memory usage, and scaling backend APIs, we ensure your app stays modern and scales with your user growth.

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400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
What We Build

Comprehensive App Maintenance & Scaling

01

OS Compatibility Updates

Reviewing and updating codebases annually for new iOS and Android version compliance, replacing deprecated APIs, and optimizing layouts for new devices.

02

Crash Prevention & Bug Resolution

Setting up monitoring tools (Crashlytics, Sentry), tracking anomalies in real-time, profiling stack traces, and deploying fast, clean bug fixes.

03

Performance & Memory Profiling

Auditing application footprints. We resolve memory leaks, optimize garbage collection loops, compress assets, and improve local query execution.

04

API & Backend Scaling

Optimizing backend gateways to handle mobile traffic spikes, refactoring database queries, implementing caching strategies (Redis), and setting up CDNs.

05

Security & Dependency Patching

Auditing third-party libraries and SDK dependency trees, patching vulnerabilities, and updating encryption modules to maintain data safety.

06

Feature Modernization & Refactoring

Code refactoring to replace legacy patterns with modern syntax (e.g., migrating from UIKit to SwiftUI, or upgrading native bridges to JSI/Turbomodules).

The Challenge

Launching your app was just the beginning. The real battle is keeping it alive.

Mobile platforms are moving targets. Every year, Apple and Google launch new OS versions, deprecate older APIs, update store guidelines, and introduce new screen aspect ratios. If you ignore your app, it will slowly degrade—loading times will increase, memory leaks will cause crashes on newer devices, and security flaws will expose user data. If your app experiences a sudden surge in traffic, a poorly scaled database or inefficient network polling logic can crash your entire backend. What's needed is systematic maintenance and optimization. Quecko provides the engineering oversight, monitoring tools, and codebase updates necessary to protect your software investment.

Execution Blueprint

From Day 1 to Day 90: What App Maintenance & Scaling Execution Looks Like

01Day 1–15

Health Audit & Setup

Integrating performance monitors, analyzing current crash logs, auditing database queries, and mapping codebase technical debt.

02Day 16–45

Remediation & Refactoring

Patching security vulnerabilities, resolving memory leaks, rewriting slow API queries, and executing initial stability releases.

03Day 46–75

OS & Library Compliance

Updating codebases to target current SDK versions, replacing deprecated layout APIs, and validating layout scaling.

04Day 76–90

Scaling & Automated Pipeline

Establishing automated UI and unit testing, optimizing build distributions via CI/CD, and setting up ongoing maintenance schedules.

Technology

Technologies We Master

Tools, frameworks, and protocols we use to build secure and scalable solutions.

Monitoring & Analytics

Firebase CrashlyticsFirebase Crashlytics
SentrySentry
DatadogDatadog
DynatraceDynatrace

Profiling Tools

Xcode InstrumentsXcode Instruments
Android Studio ProfilerAndroid Studio Profiler
LeakCanaryLeakCanary

Platform Updates

Swift/SwiftUISwift/SwiftUI
Kotlin/Jetpack ComposeKotlin/Jetpack Compose
React NativeReact Native
FlutterFlutter

CI/CD Automation

BitriseBitrise
FastlaneFastlane
GitHub ActionsGitHub Actions
JenkinsJenkins

Backend Scaling

Redis (caching)Redis (caching)
PostgreSQL/MySQL query tuningPostgreSQL/MySQL query tuning
AWS Auto-scalingAWS Auto-scaling

Vulnerability Scanners

SnykSnyk
DependabotDependabot
SonarQubeSonarQube
Our Edge

We Keep Your Apps Fast and Safe While You Focus on Growth.

We don't ignore warnings. We track down memory leaks and rare concurrency exceptions to maintain a crash-free rate above 99.9%.

Crashlytics Specialists

We don't ignore warnings. We track down memory leaks and rare concurrency exceptions to maintain a crash-free rate above 99.9%.

Zero-Downtime Migration

We know how to modernize active applications. We execute database updates and API migrations without interrupting the user experience.

Proactive Compatibility Testing

We test on developer beta OS releases months before public launch, ensuring your app is ready for day-one device updates.

250+ Products Shipped

We bring deep system maintenance experience to mobile, ensuring codebases remain clean, secure, and ready to scale.

Our Work

Our Projects

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Social Proof

“The work Quecko has done has been absolutely brilliant. Extremely responsive, reliable, and fast — we can throw last minute requests in and they'll get them done by the end of the day.”

Tom Blears

Chief Executive Officer, Bitcast
Engagement

How We Collaborate

Monthly Maintenance Pod

Dedicated part-time or full-time developers and QA monitor, update, and patch your app monthly.

Scale and Modernization Sprint

A focused project to profile, optimize API database queues, compress assets, and upgrade legacy layouts.

Emergency Rescue Sprint

Dedicated support to resolve critical production crashes, database blockages, or App Store compliance rejections.

FAQ

Frequently Asked Questions

We integrate monitoring SDKs like Firebase Crashlytics or Sentry. When a crash occurs in production, the SDK captures the device details, OS version, and stack trace, sending it securely to our dashboard so our developers can write a patch.

Apple and Google release major OS updates every fall. These updates change system behaviors, deprecate old APIs, and introduce new security policies. Without updates, the app will eventually encounter layout bugs, background service failures, or get flagged as out of date by the store reviewers.

Yes. By refactoring slow database queries, setting up Redis caching for heavy endpoints, and placing media assets on CDNs (CloudFront), we can significantly reduce app loading latency and server loads without modifying the mobile app itself.

We verify updates in isolated developer branches. We run automated regression tests and check package dependency trees using tools like Snyk to ensure updates do not introduce security vulnerabilities or conflict with other modules.

Blogs

Latest Stories from Quecko

Ready to optimize, secure, and scale your existing mobile application?

From OS compatibility updates and memory leak resolutions to database query scaling and automated CI/CD pipelines — Quecko keeps your mobile apps running at peak performance.

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