Hey there Jonathan,
Let me try to address each of your questions:
I just found your product tonight and was wondering can this be used as a full AV/Internet Security product without installing any other AV product?
Yes, it can be. The anti-virus part is definitely something we cover with the cloud anti-virus engines (more on this below) and the optional offline AV. The internet security, while I'd like to say yes to as well, is highly subjective depending on your expectation. We do not scan and safeguard your browsing directly - meaning we won't tell you whether a site is dangerous or malicious. However, with Application Whitelisting, any threats (i.e. untrusted files) that manage to enter your system via the web, like a drive-by download and tries to run behind your back will always be blocked.
I was worried about it being cloud based so what happens when your server goes down or my PC's goes offline?
We typically do our best to have our servers up all the time but we do maintenance/upgrades (which we try to announce ahead of time) and the occasional emergency maintenance. During those times you will have the optional offline anti-virus - you can choose between a free option or one powered by Avira. Application control and whitelisting also work while offline so any untrusted applications will still run without your permission which you can either rely on the offline AV for diagnosis, a third-party AV which you already have working with SecureAPlus, or simply block all threats till the servers are back up.
Essentially, with Application Whitelisting still working (your whitelist is kept locally after all), you have full control on what runs due to the block first approach.
do you offer licenses (on the premium features) for multiple PC's or does 1 license work on all my PC's in my house (home user)?
We have multi-PC licenses in the store - currently, there are packages for 1,3 & 5 devices which you can avail either a 1-year or 3-year license.
Is it fast? I just installed Bit Defender as "everyone" says they are the best but they slowed down my stuff too much for my liking.
This is highly subjective. Upfront, our initial full system scan is slow. This is because we create your initial whitelist and we try to ensure that your baseline system is secure. Once the full system scan is completed, a full system scan should be very fast - less than a minute for typical systems but of course this can be longer depending on your internet connection speed and the number of files you have (especially new ones). Also keep in mind to disable the optional offline AV if you're planning to use a third-party offline AV (i.e. BitDefender, Windows Defender, Kaspersky) alongside SecureAPlus - Application Whitelisting and the Cloud AV works well with others, just not the offline AV.
If you would like to try things out, especially the Premium features for multiple device management, you can go for a
Premium Trial (once per device) and if you'd like to try the Add-Ons (i.e. that offline AV powered by Avira), you can make a purchase and return it within a month if it proves unsatisfactory via the
Moneyback Guarantee.
I hope that you found this helpful in making your decision.