Yes! If you start with the yearly access and then decide to upgrade to lifetime access, you can upgrade and only pay the difference. So if you already paid $89 for yearly access, you'd only pay another $160 to upgrade to lifetime ($249 minus $89). You'll see an option in your Elegant Themes dashboard that lets you upgrade. However, this only applies if your yearly membership is still active. You cannot get this deal if your yearly membership has expired.