- Free tier: 25 GB of Storage, 25 Units of Write Capacity, 25 Units of Read Capacity
- Pros: A NoSQL database with both document and key-value store models, replicated with high availability. The free tier is enough to handle up to 200M requests per month.
- Limitations: One unit of read/write capacity handles one request per second (or two requests per second in the case of eventually consistent reads). Has both strongly consistent and eventually consistent reads.
- Free tier: 1$/GB per month, $0.015$/100 “heavy” requests, $0.015/500 “light” requests, first $50 per month free
- Pros: Full CouchDB hosting. Can host also static sites and javascript applications
- Limitations: Account on shared multitenant instance
- Exceeding the free tier: Credit card needed after first 30 days to charge exceeding usage
- Free tier: 20MB storage, 5 simultaneous connections
- Pros: SQL web browser for simple database inspection, secure connection over SSL, full automatic backups
- Limitations: No SLA no in-memory cache, shared server
- Free tier: 1GB storage, 10GB/month transfer, 100 simultaneous connections
- Pros: really fast can be used for real time pub/sub, libraries for multiple platforms, designed to be used directly from frontend (with security rules), integrates with Firebase Authentication
- Limitations: no backups, limited queries, complicated security rules (read the manual!)
- Free tier: 5MB MySQL database or 10MB MS SQL database
- Pros: Recent versions (MySQL 5.6, MS SQL Server 2014)
- Exceeding the free tier: The database becomes locked and a kind email is sent asking to upgrade to paid plan
- Free tier: 1GB storage/day, 50K reads/day, 20K writes/day, 20K deletes/day
- Pros: dashboard, clients available in multiple languages, fully managed (sharding and replication), ACID transactions
- Limitations: complex requests needs specific indexes (read the manual)
- Free tier: 10K rows/month, 20 simultaneous connections
- Pros: dashboard, secured
- Limitations: SLA with maximum of 4 hours of downtime/month (99.5% uptime), no in-memory cache, no expensive queries support
- Free tier: 25MB ram, 20 connections
- Pros: dashboard, secured, analytics, access via Heroku CLI
- Limitations: SLA with maximum of 4 hours of downtime/month
- Free tier: 500MB storage, daily backup
- Pros: managed on AWS, Azure or Google Cloud, data browser, monitoring
- Free tier: Start with a free 3-node replica set and 512 MB of storage / Shared RAM.
- Pros: Fast, secure, and highly available MongoDB service for any scale.
- Free tier: 1Gb storage
- Pros: Easy to deploy
- Limitations: Only support mongodb 2.4
- Free tier: 30MB, 30 connections
- Pros: managed, possibility to choose cloud provider (AWS, Azure, GCE, IBM Softlayer) and availability zones