7 Common Challenges in Mobile App Testing


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Mobile app testing is a complex domain from the desktop app and website testing. It is smart to pay attention to mobile app testing given the growing numbers of mobile users. Mobile apps can be used on-the-go and give quick information for everyday use. According to Statista study, there are 2.7 billion smartphone users across the world today. With this large number of users, it is obvious that mobile apps should be thoroughly tested before releasing them into the market.

Here are some of the common challenges faced during mobile app testing:

1. Screen Size

Screen sizes of mobile devices vary. Apple’s screen sizes range from 3.5’’ to 12’’. Android screen sizes range from 2,6’’ to 6’’. These changes occur whenever any new model is launched. Apps have to be tested to ensure they work across these different screen sizes. Testers must check the performance of different layouts and elements against different pixel densities and aspect ratios.

2. OS Fragmentation

Different mobiles have different operating systems which are upgraded often. Fragmentation is a big issue for Android which has 11 different OS. 93% of iOS devices are using version 9 or 10, so Apple’s OS fragmentation is a smaller issue than Android. Regardless, testers are faced with the challenge of testing mobile apps for multiple operating systems.

3. Battery

Mobile apps can be demanding on batteries. They consume a lot of power. Using multiple apps as people often do drains battery life faster. A mobile application testing company must factor in power consumption by mobile apps while designing their testing processes.

4. Changing user requirements

Mobile app upgrades are frequent as user requirements change. Mobile features go through continuous feature upgrades. Agile processes are best suited for developing mobile apps as changes can be put into every sprint. With all these changes, new bugs are detected that must be fixed. Testing challenges grow because of the rapidly changing environment of mobile apps development.

5. Mobile apps types

Some mobile apps are responsive, others are not. Mobile apps can be native, web apps or hybrid, containing both elements. The installation and functionality of these apps are different. These variations mean mobile apps have to be tested in different ways. One generic testing procedure will not work for all mobile apps.

6. Mobile networks

People move from place to place, and internet networks change. In underground places, network signals are weak. During boarding and flight takeoffs, the network may be off entirely, requiring the mobile app to work offline for features like ticket access, etc. Testers have the challenge of testing mobile apps under different networks.

7. Usability

Usability is the foundation of mobile apps’ success. A well-designed app has an attractive and intuitive interface. Content is easy to access. Navigation is smooth. Images adjust to screen size. Users can interact easily with the app via finger touching and tapping options. A mobile app testing company should make sure all elements of the interface are working efficiently for the user’s comfort.

If mobile app testing companies can tackle these challenges, they can deliver a high-quality product to the market.


  1. With the modernization of mobile applications testing basics, everyone has very high expectations from the mobile apps and even a small bug or mistake is not acceptable. Would like to add that with the users getting more informed and intelligent, the apps built should keep up with the pace and fully tested!!

  2. Mobile Testing is a fascinating subject. The Biggest challenge in Mobile Testing is to incorporate negative scenarios and high performance of API integration. After many years of experience in mobile testing, I learned if you are not showing proper validation or error message. Many times users get confused and delete the app. Just think about one of the API is down, and App is not showing an error message, In this case, App is going to crash. The crash is the worst thing to expect. To provide crash-free sessions, up to 99.99% is the biggest challenge for the entire team.


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