The Importance of Testing on Multiple Devices

Author: HLundgaard
https://commons.wikimedia.org/wiki/File:Mobile_devices_DSC_0988.JPG

Mobile apps are being developed on a daily basis. The differentiators between apps are often minuscule. What typically sets them apart are functionality and usability. Yet, to get the product on the market as quickly as possible, oftentimes QA testing is left to simulators and emulators or testing only on a few devices versus testing on all types of real devices. But a product that is not completely up to user standards can lead to many bad reviews and significant loss of sales.

So what are the problems with only testing on a small number of devices or simulators/emulators? Here are three common ones:

No Real-World Situations

Emulators/simulators can be programmed to test certain circumstances, i.e. how the app performs using WiFi. Real devices, on the other hand, allow testers to see how the app actually performs on the device in these actual situations. For example, the app may perform fine with a strong WiFi signal, but may falter in a car with a spotty connection.

Does It Display Correctly?

The app may look quite different on a device than what the developer intended. But, if you only have a few devices available, then you won’t be able to see how the app appears – for example – on different Android devices or versions of iOS.

How Does It Respond to Interruptions?

When users access apps on their devices, they’ll also receive text messages, calls and other notifications. It’s hard to replicate these situations on a handful of devices.

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