Might not be available on all accounts but lifetime plex offers are few and far between so worth trying this if you have a normal account. Adds features like local sync so you can sync your media to the plex app for watching offline e.g. when travelling.
Enter "PLEXFORLIFE" for a massive 37% off the usual price of £94.99.
This promotion code is valid only for new Plex Pass subscriptions and cannot be applied to existing subscriptions or for subscription plan upgrades.