Softwr

Database & Data Management · head to head

DynamoDB vs TiDB

DynamoDB logo

DynamoDB

Database & Data Management

Fast, flexible NoSQL database service for any scale

From
On request
Rated
-
Full reviewWebsite
TiDB logo

TiDB

Database & Data Management

Open source distributed HTAP database for elastic scale and real-time analytics

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only TiDB has a free tier, so it costs nothing to try first.
  • Each has a real cost: DynamoDB noSQL-only; does not support complex relational queries or SQL joins; TiDB not 100% MySQL-compatible, requiring verification before migration
  • They diverge on capability: DynamoDB covers Single-digit Millisecond Latency, TiDB covers MySQL Compatible.

Where they differ

Only the attributes on which DynamoDB and TiDB actually diverge.

Attributes where DynamoDB and TiDB differ
AttributeDynamoDBTiDB
Starting priceOn requestFree
Pricing modelusage-basedfreemium
Free tierNoYes
PlatformsAWSCloud, AWS, Azure, Google Cloud Platform, Self-managed
CategoryDatabase & Data ManagementUnknown
Founded20062015

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in DynamoDB

  • Single-digit Millisecond Latency
  • Serverless
  • Auto-scaling
  • Global Tables
  • Point-in-time Recovery
  • Encryption
  • Streams
  • Lambda

Only in TiDB

  • MySQL Compatible
  • HTAP Workloads
  • Horizontal Scaling
  • Strong Consistency
  • High Availability
  • Real-time Analytics
  • Elastic Scaling
  • MySQL

Both cover

  • Web support

What people use each for

The jobs each tool is most often brought in to do.

DynamoDB

  • High-scale, variable-workload applicationsnot TiDB
  • Mobile and IoT device backendsnot TiDB
  • Real-time analytics and dashboardsnot TiDB
  • Multi-region, globally distributed applicationsnot TiDB

TiDB

  • Transaction processingnot DynamoDB
  • Data storagenot DynamoDB
  • Application backendnot DynamoDB
  • Reportingnot DynamoDB
  • Data analyticsnot DynamoDB

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

DynamoDB

  • NoSQL-only; does not support complex relational queries or SQL joins
  • Limited query flexibility; requires thinking in terms of keys and indexes rather than ad-hoc queries

TiDB

  • Not 100% MySQL-compatible, requiring verification before migration

Pricing, plan by plan

DynamoDB

On request

No published plan breakdown. See the DynamoDB review.

TiDB

Free
  • ServerlessFree
    • 5GB storage
    • 50M request units
    • Free forever tier
  • Dedicated$250/month
    • Dedicated resources
    • SLA guarantees
    • Enterprise support

Which should you pick?

Choose DynamoDB if

  • You need single-digit millisecond latency.
  • You work on AWS.
  • You also want serverless.
DynamoDB review

Choose TiDB if

  • You need mysql compatible.
  • You want to start without paying.
  • You work on Cloud, AWS, Azure, Google Cloud Platform, Self-managed.
  • You also want htap workloads.
TiDB review

Questions people ask

Is DynamoDB or TiDB better?
Neither clearly leads. DynamoDB starts at On request and TiDB at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, DynamoDB or TiDB?
TiDB has a free tier; the other does not. Paid plans start at On request for DynamoDB and Free for TiDB.
Does DynamoDB or TiDB run on more platforms?
DynamoDB runs on AWS. TiDB runs on Cloud, AWS, Azure, Google Cloud Platform, Self-managed.
Can I use TiDB for free?
Yes. TiDB has a free tier, so you can try it without paying. DynamoDB starts at On request.
What is DynamoDB best used for?
DynamoDB is most often used for high-scale, variable-workload applications, mobile and iot device backends, real-time analytics and dashboards, multi-region, globally distributed applications. Of those, high-scale, variable-workload applications and mobile and iot device backends are not what TiDB is typically brought in for.
What can DynamoDB do that TiDB cannot?
DynamoDB covers Single-digit Millisecond Latency, Serverless, Auto-scaling, Global Tables. TiDB covers MySQL Compatible, HTAP Workloads, Horizontal Scaling, Strong Consistency. Both handle Web support.

Answered from the vendors’ own pages

TiDB: Is TiDB MySQL-compatible?

Yes, TiDB speaks the MySQL protocol, so existing MySQL clients, ORMs, and drivers work without modification. However, TiDB is not 100% MySQL-compatible.

Source
TiDB: How does TiDB scale?

TiDB provides automatic horizontal scaling with compute and storage scaling independently. It splits compute (TiDB servers) from storage (TiKV) to allow adding nodes without data replication.

Source
TiDB: Does TiDB support analytics workloads?

Yes, TiDB is an HTAP database with TiFlash columnar engine providing analytics capabilities alongside transactional processing on the same data without separate pipelines.

Source
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