Rakuten Linkサポーター

Rakuten Linkサポーター is a supportive application designed for Rakuten Mobile users to start free calls seamlessly using the Rakuten Link app. Instead of incurring charges through the default Phone app, this extension automatically detects such calls, stops them, and transfers the number to Rakuten Link, helping users save on call costs.

While some emergency and special numbers dial directly through the Phone app, Rakuten Linkサポーター ensures nearly all eligible calls utilize Rakuten Link's free calling feature. Note that this app is not official Rakuten Mobile software. For FAQs and future feature requests, users can visit the support page or contact the developer on Twitter.