Google App Engine Cost

[Stesca com]

I am looking into the Google AppEngine for deploying one application. The price calculator is painting a very scary picture, so I decided to ask this here.

My question is from all of you who have deployed their applications onto the AppEngine and have load from moderate to heavy and the instances run 24/7.

What is your average cost per month :

1. Only AppEngine
2. Full solution with Cloud SQL, Storage & Firebase etc.

I would highly appreciate your help.

[Joshua Smith]

I more than a dozen App Engine apps (using cloud datastore and standard (not flex) GAE), and in my experience, the only non-negligible costs are:

1. Instances

2. Datastore reads

Instances tracks your request rate. For example, I have a very traditional web/db python app, and it usually has about 1 F1 instance per 0.1 requests/sec. (So if the request rate reached 0.5rps, then I'd have 5 instances.) This app has several hundred daily users, and it almost never needs more than one instance. (The first instance is free.) The only time my request rate goes up is when a bot ignores the crawl-delay in my robots.txt, or when somebody's calendar widget goes bonkers and starts hammering my ICS handler. I have alerts set up against budget, so when this happens I can investigate and block them with a firewall rule.

As for datastore reads, that's ridiculously hard to predict. It depends so much on what your app does, and how aggressively you cache frequently-accessed stuff. But looking at all my apps together, instances are usually half the bill, and datastore reads is the other half. So here's a quick estimator for monthly cost, based on my experience.

$ = 2 * ( ( floor(10 * RPS) - 1 ) * $36 )

RPS is requests per second, and you are probably over-estimating that by an order of magnitude.

-Joshua

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[Mohammad I (Cloud Platform Support)]

Hello,

To get a better understanding on costs for App Engine or for full solution with Cloud SQL, Storage & Firebase etc. you can select Google Cloud Platform Sales and select "I want to talk to sales" and write down your queries and a Google Cloud Platform Sales representative will get back to you. There are also option for chat and phone call to talk with Cloud Platform Sales representative. Hope it will resolve your concern. 

[Stesca com]

Very helpful, thank you. Can you tell me how many actual requests on average are you getting per second?

[Joshua Smith]

Example 1: www.mytowngovernment.org is a site where about a dozen towns in MA post all their meetings. 

Example 2: Company analytics site, gather usage data from a hundred web & native apps totaling about 2000 engagement hours / week:

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