I am building remiind.cc, random email reminder for your ideas.

All my tech stack is in AWS, this is my cost:

Around $5 / month.

To be clear, remiind.cc has < 100 users, and it's a simple web app. All I want to say is, it's cheap to start a SaaS.

This is my tech stack

Frontend:

• reactjs as framework;

• S3 to host static files;

• CloudFront as CDN;

• Route53 for domain name;

Backend:

• Lambda functions + API Gateway for API and cron jobs;

  • I use claudiajs to build and deploy the API;

• DynamoDB for data storage;

• S3 for file storage;

• loops.so for email (I am still on the free plan).

I hope to pay more to AWS and loops, which means I will also earn more :)