There are some people and organisations you can never keep out. It doesn't matter what software you use.
You may stand a good chance of keeping the average snooper out, and for that you need to trust the software provider. So it ultimately comes down to who you trust more to keep your stuff moderately secure.
If you don't want anyone (but yourself) to have access to your information then don't store it digitally.
So who do you trust more, Google or random people on the Internet? Neither are an ideal choice, because there isn't one.
You may stand a good chance of keeping the average snooper out, and for that you need to trust the software provider. So it ultimately comes down to who you trust more to keep your stuff moderately secure.
If you don't want anyone (but yourself) to have access to your information then don't store it digitally.
So who do you trust more, Google or random people on the Internet? Neither are an ideal choice, because there isn't one.