I use Blocktrail API for my website and all is working fine.
I used Blockchain in the past and they are ok.
I see that many users complain that Blockchain support does not respond to new API requests.
There is a small trick I used in the past to get a fast response and an API key: after you request the API key, go to support section (https://support.blockchain.com/hc/en-us) and open a ticket. Tell them that you requested an API key but you did not get any answer. They will respond fast and if your website/app is ok, you will get your key.
Great so you are the one that used both. Can you tells us which one is better ? Easier to use ? (both in development and live). I started using Blocktrail for now and like it so far, but i don't know if maybe i should use blockchain.info because it's more popular ? (might get new features and stuff faster )
I like Blocktrail because you can use their API for gambling related websites.
Also my developer told me (I'm not a tech) that Blocktrail API is easy to implement.
Let's hope they will continue to offer a good service (Blocktrail was bought by Bitmain)