[BaaS] Backend as a service for free

*image from http://www.netmera.com/

After I blog about Free push notification and then dig deeper for other alternative competitor I suddenly found that it's plenty a lot more free Backend as a service (BaaS) out there with also provide not just million of push notification but also free cloud service and else!

Vender	Push Noti per month	API calls per month	Storage	E-mails	Users
Appcelerator	5M	5M	20GB	100,000/month	∞
Kinvey	1M	∞	∞	?	100
Stackmob	1M	∞	Amazon S3 5GB	200/day	∞
Parse	1M	1M	1GB (10MBx500files) +500 images	200/day	∞
Backendless	200,000	∞	2GB (∞Object)	?	100
apiOmat	?	?	?	?	1,500
TEMBOO	?	1K	512MB/month	?	?
App42	1M	1M	1GB limit, 1GB/month	?	∞
netmera	1M	∞	5GB	?	?
GoInstant	-	?	2GB (imit 10GB transfer)	?	100 concurrent connections
Yahoo	-	?	?	?	5,000 concurrent connections
Firebase	-	?	100 MB Data (imit 5GB transfer) 1GB Hosting (limit 100GB transfer)	?	50 Connections

I will collect all BaaS here for reference and compare, I did try all of them and my suggestion (for now) is Parse.com which is just has been take over by Facebook after I try it for 2 days ;p

The good thing for this all services is they all support REST/RESTful API and JSON which really mean Flash/AIR dude can be use their API without any headache.

And like always, any suggestion for other competitor is open and welcome! :)

PS : I'll try keep this table comparison accurate as possible, but for real life use please recheck for pricing plan at service provider page.

UPDATE 1 : as Nick Collins mention, I just add backendless to the list, if you didn't push notification that much and want minor adjust for each $ you spend, this one is perfect for you :)

UPDATE 2 : Thanks Morgan Bickle for correction via comment below, Kinvey has "unlimited" storage for free, so it's a good time for us to fill it up though! ;)

UPDATE 3 : Thanks Mark Piller for clarify and Philipp Schäfer for info, i just add apiOmat to the list, they limit on 3 modules didn't say anyway they have limited to use...

UPDATE 4 : App42 has Flash support! @see Push Notification in Flash, but it only FREE for 3 Months for Non-Indie Developers.(Any individual or a studio with yearly revenue (turn-over) less than $100 K.)

UPDATE 5 : netmera is look really promising, i'm now using Parse but really tempting much more push  notification features from them.