Your app’s signature is a certification method where you can prove that you can sign an APK with the same signature as the app you are trying to certify. When uploading your app on Catappult. It is required that you use the same signature as the package in Google Play. For more information on why this is important, click here.
If your app has the Google Play signature, please follow the steps below to download the APK with the Google Play signature and upload it onto our platform:
Open your Google Play Console. Select your app in the App list, in the All apps menu.
In the menu on the left, select Internal testing (inside the Testing menu).
In the top right corner, press the “Create New Release” button.
In the App bundles section, upload your .apk or .aab file.
In the Release details section, write the name of the release.
After the upload is finished, press the "Save" button that appears in the bottom right corner.
After it is saved, go to the menu on the left and select App bundle explorer.
Go to the Downloads tab.
Scroll down and, in the search bar on the Device-specific APKs section, search for the devices listed below. For each of them, download the APK files:
- OPPO Find X2
- Xiaomi MI 9 SE
- Samsung Galaxy A10
- Samsung Galaxy Tab A7
After downloading all the APKs from your Google Play Console, go to your Catappult Console.
In the left menu, go to Manage Apps and select Add App. Upload all downloaded files in the Files section - you can upload all 4 files at once.
What is this for?
This process is required if your app is on Google Play and signed with the Google Play signature. To upload your app on Catappult, your app’s signature has to be the same on Google Play and on our platform.
I have my app on Google Play but I use my own signature, do I need to do this?
No. If your app is on Google Play but you have your own signature, you do not need to do this process. You can upload your package’s files directly onto our platform. This is only needed if you use the Google Play signature.
Why do I download the .apk for 4 different devices only?
The specific devices mentioned above (OPPO Find X2, Xiaomi MI 9 SE, Samsung Galaxy A10, Samsung Galaxy Tab A7) are enough for you to cover all device-specific APKs you may need. You don’t have to download all the available devices and you can use different devices if you would like to. This is just our recommendation.
My app does not have splits, do I have to download a different APK for each device?
No. The process is the same either you have .obb files or not. However, if your app does not have any splits, instead of downloading each device-specific APK, you download the “Distribution APK” in the Assets section.
My app has .obb files, do I need to do anything to them?
No. There is no need to do anything.
My app has IAPs, how do I sign and use the One-Step Payment (OSP) billing method?
If your app has In-App purchases, you have to follow the OSP procedure before uploading your file in the Google Play Console. The file you upload on Google Play to get the Google Play signature has to already have OSP billing method integrated.
Updated 4 months ago