There is no legitimate single "link" that provides a free Flightradar24 premium account without an exchange of data or a trial period. Websites or links claiming to offer "free premium accounts" are typically fraudulent and may contain malware.

In extreme cases, commercial users reselling “premium links” have faced fines under the Computer Fraud and Abuse Act (CFAA) in the US.

: You can apply for an ADS-B receiver kit from Flightradar24. If they need coverage in your area, they will send you the antenna and equipment at no cost.

Try the official trial. If you love it, budget for it. If not, explore free alternatives. Your digital safety is worth far more than a few extra flight filters.