Google App Engine Pricing

Free

Features included are

-Dynamic scaling
-Java Runtime
-Python Runtime
-Go Runtime

Tools

-Google Plugin for Eclipse
-Code upload/download
-Graph History
-Request Logs
-Developer Access Control

Hosting

-On-demand Frontend Instances <-> 28 free instance hours
-High Replication Datastore <-> 1GB
-Outgoing Bandwidth <-> 1GB
-Incoming Bandwidth <-> 1GB

APIs

-Datastore API<-> 50k free read/write/small
-Blobstore API <-> 5GB
-Email API <-> 100 recipients
-XMPP API <-> 10k stanzas
-Channel API <-> 100 channels opened
-Image Manipulation API
-Shared Memcache
-Dedicated Memcache<-> No free Quota
-Users API
-Task Queue
-Files API
-URL Fetch API
-Cron
-SNI SSL Certificates <->No free quota
-SSL Virtual IPs <->No free quota
-Pagespeed Bandwidth <->No free quota

Starts at$150/account/month

Click Here for Advanced calculation

Features included are

-Dynamic scaling
-Java Runtime
-Python Runtime
-Go Runtime
-Usage based pricing
-Infinitely scalable
-SLA
-Operational support

Tools

-Google Plugin for Eclipse
-Code upload/download
-Graph History
-Request Logs
-Developer Access Control

Hosting

-On-demand Frontend Instances <-> 28 free instance hours
-High Replication Datastore <-> 1GB
-Outgoing Bandwidth <-> 1GB
-Incoming Bandwidth <-> 1GB

APIs

-Datastore API <-> 50k free read/write/small
-Blobstore API <-> 5GB
-Email API <-> 100 recipients
-XMPP API <-> 10k stanzas
-Channel API <-> 100 channels opened
-Image Manipulation API
-Memcache API
-Users API
-Task Queue
-Files API
-URL Fetch API
-Cron