Systems | Development | Analytics | API | Testing

Advanced iOS push notifications: scaling APNs in production

The Apple Push Notification Service (APNs) allows developers to send real-time alerts and data to Apple devices. But it can create a number of problems as your app scales including silent throttling, deep link errors and push payload incompatibility. This post will help you proactively avoid these issues. You’ll learn about: This guide is intended for developers already using push notifications or planning to operate notification systems at scale.

Logs told me something broke. Traffic showed me what.

Here’s a problem I run into constantly: something breaks in production, I can see the 500 errors in my logs, but I can’t reproduce it locally. The trace shows me the dependency graph but not the actual request that failed. This is especially painful in microservices. I was looking at a CNCF example the other day (a simple demo app, like 4 pods) and it already had so many cross-service dependencies that understanding what broke required looking at the whole system at once.

What is MCP (Model Context Protocol)?

MCP (Model Context Protocol) is an open standard that lets AI agents connect to external tools and data sources in a consistent, secure way. We can think of the MCP as a USB-C port for AI agents. This open protocol from Anthropic (the guys who built the Claude chatbot) enables AI applications to plug into external tools without any custom glue code.

Presenting The Bugfender MCP: Use Your AI Agent to Find and Fix Bugs

You asked for it. We built it. Our new MCP server means you can debug directly inside your AI coding tool using real app data from Bugfender. You can use it to: It works with Cursor, Claude Code, Codex and Gemini CLI. This article will show you how to install the Bugfender MCP server, which tools your agent can access, and how the companion skills help you fix bugs faster.

SwiftData Tutorial: Swift Data Storage for iOS Apps

Since its debut in June 2023, SwiftData has fundamentally changed how Apple developers approach persistence. Devs the world over love it for its versatility, its declarative ease and its powerful querying system. But if you’re new, SwiftData can take some getting used to. Failures can feel less transparent and relationships can play out differently to how you might expect. So in this tutorial we’ll show you how SwiftData works and how to.

How to Optimize iOS Push Notifications in Production

Push notifications are one of the most powerful retention tools in mobile. iOS opt-in rates average 40–45%, and apps that use push effectively can triple their long-term retention. However poorly timed, poorly crafted alerts can drain our open rates, leading to opt-outs and disengagement. When designing iOS push notifications, we need to think about engagement and retention, not just impressions.

UIKit: The Complete Guide for iOS Developers

UIKit is Apple’s primary framework for building user interfaces on iPhone and iPad. If you’ve read that it’s about to be deprecated, don’t believe the reports. In 2026 UIKit remains as integral to production apps as it’s ever been. In this guide we’ll focus on how UIKit actually works. The lifecycle timing, the navigation structure, the memory management and (our favorite) the production debugging. You’ll find it useful if you’re.

PHP Debugging: How to Find and Fix PHP Errors

PHP applications are often tricky to debug. A combination of loose typing, complex logic and a lack of runtime visibility can make it hard to catch errors before they reach our users. But if you’re using PHP, there’s no need to stress. This guide will equip you to understand why PHP applications break, return the wrong data or behave differently across environments. We’ll cover logs, runtime checks, Xdebug, IDE tools, request debugging, and production visibility.

Xcode Guide: What It Is and How to Get Started

Xcode is the default development environment for building apps on Apple platforms. If you’re creating iOS, macOS, watchOS, or tvOS apps, you’ll end up in Xcode – whether you planned to or not. Xcode is powerful, reliable and intuitive. But it’s also opinionated. Learning how it expects you to work is often the difference between feeling productive and stuck.