1) How did you recruit users for your closed test? For example, did you ask friends and family or use a paid testing provider?

I recruited testers using my personal and professional networks, including friends, family, and colleagues. I also reached out to relevant online communities and social media groups to connect with potential users who match my target audience.

2) How easy was it to recruit testers for your app?

Moderate.

3) Describe the engagement you received from testers during your closed test.

I requested active participation from testers and explained the app's key functions and features in detail. Testers thoroughly tested the main functions, identifying bugs and errors while providing feedback on UI/UX improvements. Reflecting on this feedback allowed me to enhance the app's stability and usability, resulting in a better final product. Additionally, since the app's functionality is simple, I confirmed that the usage patterns were consistent between the testers' scenarios and actual use cases.

4) Provide a summary of the feedback you received from testers. Include how you collected the feedback.

I collected feedback via phone calls and SNS. Overall, the feedback was positive. During this process, a few minor bugs and areas for improvement were identified, which were addressed to improve the app's completeness.
1. Fixed issue where app list data was cut off.
2. Improved loading speed.

5) Who is the target audience for your app?

This app is designed to easily check detailed information (version, size, permissions, etc.) of apps installed on the device. The primary target audience is Android developers and engineers who need to quickly and accurately query specific app data for development and analysis tasks.

6) Describe the value your app provides to users.

1. Efficient App Management and Analysis
Developers and engineers frequently need to check the version, installation size, and update history of apps under test or system apps. This app allows users to easily view all detailed information of installed apps in one place, enabling efficient management without complex settings or multi-step processes.

2. Providing Critical Data for Troubleshooting
App versions and sizes play a crucial role in analyzing performance issues or resolving crashes. For instance, if a specific app update causes issues, this app allows users to quickly identify version information to pinpoint the cause and fix it. It is particularly useful for developers or QA teams managing multiple apps simultaneously.

7) How many installs do you expect in the first year?

0 - 10,000

8) What changes did you make to your app based on what you learned during your closed test?

1. Fixed Cut-off Data in App List Scrolling
- Resolved an issue where the last item was not visible when scrolling through the app list, ensuring all items are displayed correctly.

2. Improved App List Loading Speed
- Addressed the slow loading speed when fetching the installed app list during initial startup. Through data optimization, the loading time was significantly reduced, enhancing the user experience.

9) How did you decide that your app is ready for production?

Through the closed test, I verified the app's key functions and fixed discovered bugs, significantly improving stability and performance. I specifically confirmed compatibility across various Android devices and completed optimization to meet the needs of the target user group (Android developers and engineers).

Test results showed that all features function normally and operate stably without crashes. Furthermore, reflecting feedback to improve the interface has enhanced the user experience. Based on this, I have determined that the app is ready for launch.

1) Please proceed with the update via 'Manage track' under 'Active tracks' in the 'Closed testing' menu on the left.

2) Do not update by creating a new track using 'Create track'!

3) Do not change the signing key!

• When updating the app, you must use the same signing key (Keystore) that was originally used.
• Updates will fail if the signing key is changed, so please leave the 'Change signing key' menu below unchanged.