My kids are ages 4 almost 5 and 3 almost 4 and I have been working with them on learning their letters, basic spelling and sight words. Reading Eggs is geared towards the ages of 3-12 so it's a perfect time to start them on the program. It sounds like a great way for them to begin the process of learning to read.
If you want to know more about Reading Eggs and what it has to offer than I have a deal for you. The online program is a subscription only program, did I mention they have over 500,000 subscribers that you can pay for in multiple ways. They have lesson packs you can subscribe to, or you can subscribe to monthly or yearly access to the site! As a matter of fact, right now if you head on over to Reading Eggs you can receive a Free Two-Week Trial Offer. No credit card required. So what are you waiting for? Head on over and try it out. I know I will be!