# License

- [Surge 购买前常见问题](https://kb.nssurge.com/surge-knowledge-base/zh/license/pre-sale.md)
- [Surge iOS 授权相关问题](https://kb.nssurge.com/surge-knowledge-base/zh/license/ios-faq.md)
- [Surge iOS 功能订阅更新说明](https://kb.nssurge.com/surge-knowledge-base/zh/license/ios-fus.md)
- [Surge Mac 授权相关问题](https://kb.nssurge.com/surge-knowledge-base/zh/license/mac-faq.md)
- [Surge Mac 维护更新订阅说明](https://kb.nssurge.com/surge-knowledge-base/zh/license/mac-fus.md): 本文系统阐述了 Surge Mac 维护更新订阅模式的规则与用户权益，供参考与查阅。


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