You can try Zoho. It offers a pretty comprehensive range of products, most of which are free for a limited number of users/projects/whatever. Also Microsoft officelive has web pages, email, etc. for your domain.
I use ZoHo has well, and they are coming out with better mobile applications which will be a great plus too.
Microsoft Outlook domains.live.com will provide you with free 500 email IDs and it is the best alternative one can think off at the moment.
They doesn't offer this solution anymore. That's why I prefer ZOHO. It has SO many CRM integrations and if you only have a small business (uo to 3 accounts) most of the services are free. Nice work ZOHO.
I use ZoHo has well, I prefer you to use Zoho: It is free for individual users, and many of the apps as well.
YES, their are many option you can use other stores for apps just type play stores on google it will give you list
Here is the link for Zoho Docs in the App store: https://play.google.com/store/apps/details?id=com.zoho.docs&hl=en You can also search for "zoho" in https://play.google.com/store to find all the Zoho apps (mail, docs, crm etc )