Shutting down notice likely not legit.
We were told that "Sidekick Browser has made the difficult decision to sunset the tool by the end of 2024. Unfortunately, they did not see the growth they were hoping for and the product became unsustainable."
As a result I requested a refund (Tier 3) since they wouldn't be operational by the end of Q4 2024. I received my money back in Credits and forfeited my rights to my life-time Tier 3 license. To my surprise however, Sidekick browser is fully operational as of 01.01.2025 and asked me to "Subscribe and become a Pro" (monthly subscription) to enable the features I previously had access to.
Their "shutting down notice" seemed to be nothing more than a tactic to reduce the amount of Sumo Users with life-time access deals. Great strategy. F* this company.