APP STARTUP TIME CODE
Outdated and extraneous code adds to your app launch duration.ĭefer expensive work until after the first frame is rendered: If there are any processes that are not needed for the app to launch, when possible, delay heavy tasks. Is your code up to date and is it all necessary for launch? Eliminate hidden costs by removing unused frameworks. Reduce unused assets: To start, take an assessment of what you have running at launch. But these tips will help you find the individual places where you can make small improvements and stack them up. You probably won’t find one major fix for your code that instantly delivers huge results.
Keep in mind that app launches involve numerous steps and parts. Ideally, you should be targeting a cold app launch time of 1.5-2 seconds. According to another study, 49% of users expect apps to start in 2 seconds or less. Warm launches should take less than 2 secondsīased on an analysis of the top 100 apps, 39 apps cold launch in under or around 2 seconds, and 73 in under 3 seconds.Hot launches should take less than 1.5 seconds.Cold launches should take less than 5 seconds.
APP STARTUP TIME ANDROID
The Android Developer Guide currently considers the following startup times to be maximums for acceptable performance: For a detailed breakdown, check out the article Understanding Cold, Hot, and Warm App Launch Time (not to be confused with cold, hot, and warm lunchtimes). Each refers to the state of the app in the user’s memory. There are three basic types of app launches: cold, warm, and hot. This app launch optimization guide will cover the variables that impact startup times and will help you set and reach performance goals. There are a lot of components involved in an app launch, but that doesn’t mean that reducing launch times has to be complicated. Achieving a short gap between launch and interactivity is now more important than ever before. Wasted time on behalf of your users translates into wasted business for your app and slow starts can also mean poor app store ratings or users uninstalling your app altogether. Why is app launch optimization necessary? Slow launches impact user device memory and battery life, your users’ perception of your app and brand, and your business metrics. And first impressions can mean a lot in the mobile market -launches give the user an indication of your app’s overall quality. Your app launch represents a critical moment for your users: it’s their first interaction with your app.
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