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Mobile App Testing Services

Test your digital product with our Global testers panel

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Services in numbers

Of applications have bugs due to different OS versions and display resolutions


Of our clients expand their project after 1st wave of testing


Of our clients stated that mass testing is a must have practice

How does we work?
  • You send us a request
  • We analyze your needs
  • We launch the work and vulnerability search
  • You receive the full list with all weaknesses
  • You receive the fixing instructions
Our high quality standarts
  • Presentation

    Agile approach

  • verified
  • Target

    Target audience selection

  • verified
  • Globe Grid

    Global coverage

  • verified
  • Shield

    Data quality check

They have already improved their performance

“The polls are carried out with a certain frequency in order to keep track in time; the procedure has been done for decades. We conduct them once in half a year, measure brand knowledge, brand attitude, consumer perception of price level, quality level compared to specific competitors as well as how our consumers perceive the level of service in the store, that is, we evaluate all the factors. ”


“It’s worth noting the following advantages of working with 4Service Group: – User friendliness of “Shopmetrics” platform. – A large base of mystery shoppers, thus facilitating “rotation” standards. – Flexibility and high-professionalism of the project team. As a result of our experience, UniCreditBank would like to fully recommend 4Service Group as a reliable and competent Mystery Shopping provider.”


“We started out with an open audit concept. But this concept did not reflect our real goals. In other words, the customer’s point of view was missing from the equation. And then we decided, after receiving the first results from our Russian colleagues, to start afresh with mystery shopping as a new tool to improve our sales performance.”


“A large base of mystery shoppers allows evaluating the quality of service with the coverage of the whole country. Comfortable functionality of the report-system allows producing the statistic data in the frame of each store and consultant, in addition to the questionnaire components. Such a method of data flow allows to rapidly monitor the level of service, as well as to provide prompt feedback to our employees. All of the above help us to greatly increase the level of professionalism.”

Better Business

“Quick and efficient fieldwork. Prompt responses and updates from the primary contact.”

Socar Cases

“Socar highly recommends 4Service as a reliable partner. They conduct high quality quantitative and qualitative studies and provide invaluable guidance on how to move forward.”

Get Taxi

“While working on the projects, 4Service has demonstrated it’s ability to approach the tasks with full responsibility, to perform the work properly and in time. Distinctive features of the «Scheduling Worldwide» work are its high professionalism, organization of the employees and experience in improving customer service.”

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Find bugs in mobile applications

Do users have issues you did not anticipate? These may not be bugs but instead obvious annoyances and frustrations about how the app works that developers would never see.

Find out

Android and IOS apps

Software testing is a process involved in all life cycles of its development. Mobile app testing service supplies checks and plans product requirements, preparing and making changes for the system developed. As a result, we test application to find inconsistencies with requirements and errors, and evaluate the tools which were used.

Why Web Application Testing Is Needed?

Mobile app testing companies usually involves several steps to ensure software functionality and proper functioning before users see it.

Developers create a lot of new web applications every day, and occurrence is a normal practice. However, the later these errors are detected, the higher the price of correcting them. Therefore, it is worth having ordered app testing services before its release.

The List Of Mobile Application Testing Services

In order to test app, we inspect the following aspects with purpose of comprehensive check and assessment of your product quality.

  • Intuitive interface
  • High performance
  • Data security
  • No functional defects

 What quality aspects are we testing?

Network Use

Carrying out verification with various types of network connection, change of point or type of connection.


Detection of functional defects with an emphasis on use of scripts and user paths.


Identify performance limits, battery consumption rates, and other important aspects on target devices.


Verification of work with target OS versions and mobile devices, as well as compatibility with hardware elements (cameras, microphones, sensors, GPS modules, etc.).

External Influence

Analysis of work with incoming calls, recharging, updating a third-party software application, locking the screen of smartphone, turning on / off Bluetooth, etc.


Verification of UI consistency, identification of visual defects and user interface behavior defects.


Full verification of compliance with security requirements (data encryption, passwords, false security, etc.).

The Difference Between Mobile and Web App Testing

Mobile devices are intended for use in motion, in a limited space, etc. A user browses web applications much faster, that’s why they should instantly attract his attention. Mobile application testers teach that the emphasis should be placed primarily on the adaptability of application for a mobile device:

  • how application works on different operating systems;
  • how does application send SMS, incoming and outgoing calls, location services;
  • how application works at different illumination angles.

Desktop applications are primarily tested for cross-browser compatibility and usability. There should be no dead links, the site should be user-friendly, have an attractive design and not be overloaded. Mobile app tester checks compatibility with other software.

6 Things You Didn’t Know About Your Employees

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