Blog

Insights from the Nami ML team on the app economy including on subscription-based apps, app growth and building better paywalls.

Android

September 15, 2024

How to Test Google Play Billing's DEFERRED Proration Mode: A Complete Guide for Developers

Google Play Billing provides several Proration Modes via the BillingFlowParams.ProrationMode API, allowing developers to manage subscription upgrades and downgrades effectively. One of the most complex modes to handle is DEFERRED, which postpones the new subscription plan until the current one expires. Testing this mode can be tricky but essential for a smooth user experience.

July 1, 2024

How to Fix "The Item You Requested is Not Available for Purchase" Error

As a developer, encountering the error message "The item you requested is not available for purchase" can disrupt the user experience and affect your app’s revenue. In this article, we will explore the various causes of this error and provide a detailed guide on how to troubleshoot and resolve it