I had one of my transaction stuck for quite long time. I tried some free bitcoin accelerators but it had no impact on the speed the transaction. Later the transaction got confirmed on its own. So I feel that these free BTC accelerators are just marketing gimmick to sell their paid options or to drive traffic on their sites. Do you agree with this ?
Most of them are just carp/fake accelerators that just baits users to their site to increase their traffic. There are some paid accelerators that are legit, and they do give some free "acceleration" access hourly, but you need to be extremely like to be one of those first 50 person to use their acceleratior service. For the paid services you would be actually paying more than what you would have paid if you added extra fees when making the transaction. The best thing to do is to check the current mempool and determine the fees. Based on that fee, make the transaction. You will be paying a lot, but lesser than what you will be paying when using those accelerator services.