Insufficient Storage - This device doesn’t have enough space to download “Your App”.


Aren't you tired of seeing this message after spending large amounts of internet data for the app you like and you end up by getting this insufficient storage message? This will surely make you lose your calm and coolness. Right? Previously, mobile devices were loaded with a limited amount of battery, internal and external storage, limited RAM, limited processing power, and limited data pack as well. Everything was limited and insufficient to quench our desire and thirst of roaming in the world of internet and electronic devices.

Since you are reading this article, there are two possibilities. Either you’re a normal user (reader) who faces this above problem - just like me or an Android app developer who has the power to not let users face this issue by just reducing an android app during Android app development lifecycle.

But, this article is all about how you can optimize or reduce your Android APK size during Android app development. Therefore, if you are a beginner or experienced android app developer, these techniques and ways will surely help you develop a normal and standard android application that will not require more space.

Android App Size That Matters

In this mobile-driven world, the popularity of mobile applications has been increasing immensely day by day. And because of this reason, it also increases the demand of app developers who develop Android and iOS-based applications for both platforms. But having a good experience in Android and iPhone app development, we have seen that not every Android or iOS application stands up to the mark and gets successful. In other words, we can say that not every smartphone user prefers every application. 

But you know why? What are the actual reasons behind this? Well, we have figured out that as per the report by Google, if an app-size is more than 150 MB, which was earlier 100 MB, the chances of its installation is going to be lowered by 30%. Also, for every 6 MB expansion in size, the install conversion rate could drop by 1%. As per the research, 65% of people would not install the app if they find out an app is too large. They will avoid such apps due to high consumption of internet data and also stored more space.

Now, Google has come up with a better solution. It has come up with Android App Bundle, and this allows you to install apps without even downloading essential elements which are anyway present in other apps on the Play Store, thus helps in decreasing size, almost by 35%, as believed by Google.

So, now the question is, what if your android app requires more space? And you know, if your app occupies more space, then people would not prefer to download it at all. You can understand the fact that no user wants to go through the trouble after spending much data for just one app.

Reasons that will help you understand why the large size of an android application exists these days?

  •  Highly growing demand of end-users
  •  Increasing users’ expectations
  •  Multiplication of custom DpI application categories

Side effects of the large size of an android app

Due to the large size of an app, it consumes a lot of mobile internet data as many people don’t have Wi-Fi connectivity.

  • Large size apps never run smoothly
  • It affects the internal memory and storage capacity of mobile phones.
  • It slows down your device.

Are you falling into this category who have been facing such issues while uploading your android app? Because as an Android app developer, it’s necessary to understand the user’s choice and develop an app that fits their requirements. Somewhat, it’s very crucial for every Android developer to keep the size of an application as little as possible. Hence, it’s essential to develop an app that works effectively and doesn’t occupy too much space.

 tips to reduce app size

So, now let’s have a look to reduce android app size or APK size during Android app development.

1. Image Optimization

Higher resolution images are always the best and first choice for attracting users towards the website. Since the latest mobile device comes with a good camera resolution, the image size might as well be reduced by diluting the resolution. In case, you don’t want to lose your image quality, then you have to convert your .jpg or .png images to .webp.

Utilizing images without reducing the size may affect the app quality. Rather than uploading or using the original image in your app, convert your .jpg and .png images to web format. For png files, you can also use tools like pngcrush or Zopflipng. For jpg files, you can use tools like packJPG and Guetzli. You can also use vector graphics as it makes an image simple and utilizes space.

2. Removing Dead Code

The size of the APK file is directly related to the load speed of your app, and the memory it occupies and the power it consumes. So, any unused or inappropriate code kept for the sake of keeping would only add to the junk. This is why the removal of dead code or code elimination is required for your app to stay active and energized all time, all day.

This code removal will enhance the quality of source code and lower the need to maintain code size, thus manifesting a healthy app, overall.

3. Reuse Your Resource

Reusing is really better and simpler than removal. It’s an amazing way to utilize your resources in various manners. It gives you a smooth scrolling performance. It can help you reduce the final size of your Android APK. You can eliminate those resources that are only a rotated equivalent of another resource.

Suppose, you may have tactful resources to characterize varieties in an image pertaining to tints, shades and direction. However, you could utilize the same resources for other images. 

4. Multiple APK Files Support

Some APKs consist of content that gets downloaded but is barely ever utilized. For example, add-ons like additional languages are not always needed, however, are downloaded anyhow. This occupies the additional spaces in your storage and enlarges the app.

However, this trouble has made the developer's mind working towards better solutions to download only certain parts of an app beneficial to the users. Unfortunately, it’s not possible to download a useful part of an APK. 

But to make it work nearer to these solutions, you can upload the app over Google Play store via Android App Bundle which allows Google to enable optimized APKs on the basis of device configuration. For this, you can divide one app into multiple APKs. After this, users can get only those APKs which are beneficial for them as per their device configuration.

5. Avoid Enumerations

Enums are dubious. A single one can be easily added anywhere in the range from 1.0 to 1.4 KB to the classes.dex file of an application. These can consume a whole lot of high speed if there are complex frameworks or shared libraries.

So, how can you overcome this problem? Well, with the use of ProGuard, you can convert the enums into integers and the end result is a reduced size app.

Final Thoughts

Well, these are just simple techniques that you can implement in your Android app during the Android app development phase. This will surely help you understand how you can reduce your app size or APK file and increase efficiency.

Being an Android app developer, these methods you should keep in your mind while developing an app. By reducing the app size, you are encouraging more people to download it on their smartphones. This is the reason, being a top mobile app development company, for the last 10 years, we have successfully developed and deployed more than 300 applications for our customers. Our Android app developers are knowledgeable, experienced and versatile to apply these tactics for an app to reduce the app size as much as possible.

For a better app, make a smaller app!!! :)

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