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App Engine offers you a choice between two Ruby language environments. Both
environments have the same code-centric developer workflow, scale quickly and
efficiently to handle increasing demand, and enable you to use Google's proven
serving technology to build your web, mobile and IoT applications quickly and
with minimal operational overhead. While the two environments have a lot in
common, they differ in a few important ways.
Application can scale to 0 instances when there is no
traffic. Most cost-effective for applications that have significant periods
where they are not serving traffic
You can run an App Engine application in two environments, the
standard environment and the flexible environment. See a summary
of differences between the two environments.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],[],[[["\u003cp\u003eApp Engine offers two Ruby environments, Standard and Flexible, both sharing a code-centric workflow and efficient scaling capabilities.\u003c/p\u003e\n"],["\u003cp\u003eThe Standard environment includes a free tier and the ability to scale down to zero instances, ideal for applications with intermittent traffic, while the Flexible environment does not have a free tier and is tailored for applications with consistent traffic.\u003c/p\u003e\n"],["\u003cp\u003eThe Standard environment offers faster deployment times, while the Flexible environment allows for runtime image customization and the use of custom machine types for CPU and memory configuration.\u003c/p\u003e\n"],["\u003cp\u003eBoth Standard and Flexible environments utilize the Ubuntu OS for running applications.\u003c/p\u003e\n"]]],[],null,["# Ruby on Google App Engine\n\nApp Engine offers you a choice between two Ruby language environments. Both environments have the same code-centric developer workflow, scale quickly and efficiently to handle increasing demand, and enable you to use Google's proven serving technology to build your web, mobile and IoT applications quickly and with minimal operational overhead. While the two environments have a lot in common, they differ in a few important ways. \n\nChoose your preferred environment\n---------------------------------\n\n### Standard environment\n\n- [Free tier](/appengine/pricing)\n\n- Application can scale to 0 instances when there is no\n traffic. Most cost-effective for applications that have significant periods\n where they are not serving traffic\n\n- Fast deployment time\n\n- Runtime image cannot be customized\n\n- Ubuntu OS\n\n[View Docs](/appengine/docs/standard/ruby/runtime) \n\n### Flexible environment\n\n- No free tier. Application always has a minimum number of running instances.\n Most cost-effective for applications that serve traffic continuously\n\n- Longer deployment time\n\n- Runtime image can be customized\n\n- Use custom machine types to configure CPU count and memory size\n\n- Ubuntu OS\n\n[View docs](/appengine/docs/flexible/ruby/runtime) \n\nChoosing an environment\n-----------------------\n\nYou can run an App Engine application in two environments, the standard environment and the flexible environment. See a summary of differences between the two environments.\n[Learn more](/appengine/docs/the-appengine-environments)"]]
