A license, not ownership
You almost never buy software; you buy a license to use it under conditions. That is normal, but read what the license actually allows: how many devices, whether it is transferable, and whether the maker can revoke it. A license that can be pulled at any time means the software you paid for is never fully yours.
Ask for: Check how many devices and users the license covers, whether it transfers if you sell your device, and on what grounds it can be revoked.
Broad use restrictions and anti-modification terms
Watch for bans on reverse engineering, benchmarking, sharing, or using the software in certain ways, sometimes including uses you would reasonably expect. Some terms even restrict publishing a review or comparison. The restriction can reach further than the software's actual function.
Ask for: Check that the restrictions do not block normal, expected use, and be cautious of clauses that forbid criticism or benchmarking.
Data collection and telemetry
Many EULAs grant the maker permission to collect usage data, telemetry, and sometimes your content, and to share it. This is where a free or one-time-purchase app can quietly become a data business. The consent is buried in the accept click.
Ask for: Check what data is collected and shared, whether you can opt out, and whether your own files or content are included.
Termination that can cut off your access
Look for clauses letting the maker terminate your license for vague reasons, with no refund, cutting off access to software or content you paid for. For subscription and cloud-tied software, termination can mean losing your data too.
Ask for: Check the grounds for termination, what happens to your data and purchases if it happens, and whether you can export your content first.
Sweeping warranty disclaimers and liability caps
EULAs typically disclaim all warranties (the software is provided 'as is') and cap the maker's liability at little or nothing, often the price you paid. If the software fails or causes damage, these clauses are designed to leave you with the loss.
Ask for: Check the liability cap, and note that some consumer-protection rights cannot be waived where you live, whatever the EULA says.
Forced arbitration and class-action waivers
Many EULAs require disputes to go to private arbitration and waive your right to join a class action. This can make it impractical to challenge the maker over a small loss shared by many users. It is one of the most consequential clauses and the least read.
Ask for: Check whether there is an arbitration clause and a class-action waiver, and whether you can opt out, since some give a short window to do so.