MongoDB is a serverless, distributed database orientated towards documents, in other words, saving data in BSON documents instead of registries, making it much more expressive and powerful. It's got all the advantages and usages of a relational database, but being more flexible and dynamic.

The MondoDB Atlas is a database on a global cloud created with modern applications in mind, and it's distributed and safe by default, alongside being managed in AWS, Google Cloud and Azure.

PlanetScale is a MySQL-compatible, serverless database platform powered by Vitess. Get started in seconds and scale indefinitely. You can quickly learn the basics of creating and managing a database; or learn more about the concepts, like database branching, that make this platform unique.

PlanetScale is designed to be as beautiful and consistently easy to use as it is reliable. In other words, get ready for a whole new level of UX, worthy of the most important piece in your application stack.

Plans

• Shared: Free forever with a M0 cluster, with a 512MB storage capacity, and shared RAM. Also has M2 and M5 versions available with a monthly fee of $9 and $25 respectively. Great for learning and exploring about MongoDB.
  
• Serverless: For serverless applications with a variable traffic that's generally on the lower values. It requires a minimal amount of configuration. Has a free of $0.30 per read, and has extra frees according to the operations you do.
• Dedicated: For production applications that have a sophisticated workload requirement, has advanced configuration controls, with cluster prices ranging from $0.08 to to $33.26/hr.

Example Pricing

Applications with 10M reads ($2.75), 1M writes ($1.25), 1GB storage ($0.25) and 1GB data transfer ($0.015-0.10 according to traffic): $4.3 USD tops.

Free Plan

• 3 databases
• 10GB Storage
• 100 Million rows read/mo per DB
• 10 Million rows written/mo per DB

Paid Plans

The pricing for PlanetScale starts at:

• $1.25 per month per 1GB storage
• $15 per 100 Million rows read 
• $15 per 10 Million rows written

Example Pricing

Application with 10M read and 1M written calls would cost $1.5 + $1.5 + $1.25  = $4.25 USD

Onboarding

Great documentation to start off quickly, with a free plan that's very quick to access. Has a wide amount of resources and guides to learn about it.

Scalability

Automatic, and scalable both horizontally (sharding) and vertically.

Regions​

MongoDB Atlas supports  the following regions: Americas, Asia Pacific, Europe, Middle East and Africa. The choice of cloud provider and region affects network latency for clients accessing your database deployment and the cost of running the database deployment. For clusters, this choice also affects the configuration options for the available cluster tiers. The region refers to the physical location of your MongoDB database deployment.

Backup

​MongoDB Atlas, the official MongoDB cloud service, provides 2 fully-managed methods for backups:

• ​Continuous Backups, which take incremental backups of data in your cluster, ensuring your backups are typically just a few seconds behind the operational system. Atlas continuous backups allow you to restore from stored snapshots or from a selected point in time within the last 24 hours. You can also query a continuous backup snapshot.
• Cloud Provider Snapshots, which provide localized backup storage using the native snapshot functionality of the cluster's cloud service provider.

Security

​MongoDB provides various features, such as authentication, access control, encryption, to secure your MongoDB deployments. Some key security features include: Authentication, SCRAM, Role-Based Access Control, Transport Encryption, among others.

Onboarding

Start building a database in production in 5 minutes.

Scalability

Automatically done through serverless technology.

Regions

PlanetScale currently offers database deployment in three regions. Select the region closest to your application servers to reduce latency between your database and application. Deploy branches in the region closest to your location to help reduce latency when interacting with the database.

Backups

​PlanetScale provides the ability to create, schedule, and restore backups for production and development database branches. In addition to the daily default backups that PlanetScale schedules for your database branches, you can create additional manual backups. 

Security

PlanetScale is SOC 2 Type II compliant. All data is stored encrypted at rest throughout the PlanetScale platform. This helps mitigate the risk of unintentional or malicious access to user data on storage systems.

MongoDB is a document database with the scalability and flexibility that you want with the querying and indexing that you need. MongoDB’s document model is simple for developers to learn and use, while still providing all the capabilities needed to meet the most complex requirements at any scale. 

• Rich on JSON Documents
• Allows arrays and nested items as values
• Rich and expressive consulting language
• Filter and order on any field, regardless of the way it's inserted in the document
• Full ACID transactions
• Allows for combinations on inquiries
• Completely automatized
• Security Copy
• Global Clusters

PlanetScale offers the following functionalities:

• Automated Deployment
• Creation (Development)
• Queries
• For Developers
• User Management
• Continuous Integration
  
• Online support
  
• Supports SQL