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Logging · head to head

Datadog Logs vs Redis

Datadog Logs logo

Datadog Logs

Logging

Log Management and Analytics

From
$0.1/per GB ingested per month
Rated
-
Full reviewWebsite
Redis logo

Redis

Technology

The real-time data platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Redis has a free tier, so it costs nothing to try first.
  • Each has a real cost: Datadog Logs complex, multi-tiered pricing model based on ingestion, indexing, and storage; can become expensive at scale; Redis licensing changed from BSD to AGPL in 2025, impacting open-source usage
  • They diverge on capability: Datadog Logs covers Log ingestion, Redis covers In-memory data store.

Where they differ

Only the attributes on which Datadog Logs and Redis actually diverge.

Attributes where Datadog Logs and Redis differ
AttributeDatadog LogsRedis
Starting price$0.1/per GB ingested per monthFree
Pricing modelusage-basedUnknown
Free tierNoYes
PlatformsCloud (AWS, Azure, Google Cloud, Oracle Cloud)Linux, macOS, Windows
CategoryLoggingTechnology
Founded20102009

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 Datadog Logs

  • Log ingestion
  • Full-text search
  • Custom dashboards
  • Log-based metrics
  • API
  • Webhooks
  • REST
  • Web support

Only in Redis

  • In-memory data store
  • Data structures
  • Pub/Sub messaging
  • Lua scripting
  • Transactions
  • Persistence options
  • Replication
  • Clustering

What people use each for

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

Datadog Logs

  • Centralised log aggregation and analysisnot Redis
  • Multi-source log correlation with metrics and tracesnot Redis
  • Root cause analysis and troubleshootingnot Redis
  • Security monitoring and threat detectionnot Redis

Redis

  • Cachingnot Datadog Logs
  • Session managementnot Datadog Logs
  • Real-time analyticsnot Datadog Logs
  • Message queuingnot Datadog Logs
  • Leaderboardsnot Datadog Logs

Where each one falls short

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

Datadog Logs

  • Complex, multi-tiered pricing model based on ingestion, indexing, and storage; can become expensive at scale
  • Ingestion pricing of $0.10/GB can accumulate rapidly for high-volume logging environments

Redis

  • Licensing changed from BSD to AGPL in 2025, impacting open-source usage
  • All data must fit in memory, limiting scalability to available RAM
  • No built-in support for multi-tenancy
  • Limited transaction support compared to traditional databases

Pricing, plan by plan

Datadog Logs

$0.1/per GB ingested per month

No published plan breakdown. See the Datadog Logs review.

Redis

Free

No published plan breakdown. See the Redis review.

Which should you pick?

Choose Datadog Logs if

  • You need log ingestion.
  • You work on Cloud (AWS, Azure, Google Cloud, Oracle Cloud).
  • You also want full-text search.
Datadog Logs review

Choose Redis if

  • You need in-memory data store.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want data structures.
Redis review

Questions people ask

Is Datadog Logs or Redis better?
Neither clearly leads. Datadog Logs starts at $0.1/per GB ingested per month and Redis at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Datadog Logs or Redis?
Redis has a free tier; the other does not. Paid plans start at $0.1/per GB ingested per month for Datadog Logs and Free for Redis.
Does Datadog Logs or Redis run on more platforms?
Datadog Logs runs on Cloud (AWS, Azure, Google Cloud, Oracle Cloud). Redis runs on Linux, macOS, Windows.
Can I use Redis for free?
Yes. Redis has a free tier, so you can try it without paying. Datadog Logs starts at $0.1/per GB ingested per month.
What is Datadog Logs best used for?
Datadog Logs is most often used for centralised log aggregation and analysis, multi-source log correlation with metrics and traces, root cause analysis and troubleshooting, security monitoring and threat detection. Of those, centralised log aggregation and analysis and multi-source log correlation with metrics and traces are not what Redis is typically brought in for.
What can Datadog Logs do that Redis cannot?
Datadog Logs covers Log ingestion, Full-text search, Custom dashboards, Log-based metrics. Redis covers In-memory data store, Data structures, Pub/Sub messaging, Lua scripting.

Answered from the vendors’ own pages

Datadog Logs: What pricing options does Datadog offer for log ingestion and processing?

Log ingestion starts at $0.10/GB (annual billing; $0.10 on-demand). Standard indexing costs $1.70 per million events per month (annual; $2.55 on-demand). Flex Storage costs $0.05/million events stored per month (annual; $0.075 on-demand). Flex Logs Starter costs $0.60/million events stored per month (annual; $0.90 on-demand).

Source
Redis: Is Redis open source?

Redis was open source under the BSD license since its inception in 2009 and has remained open source. However, in 2024-2025, Redis Labs changed licensing to source-available and AGPL, prompting the creation of Valkey, a BSD-licensed open-source fork.

Source
Datadog Logs: What retention options are available and how does it affect pricing?

Standard indexing offers 15-day retention with options for 3 to 30+ days. Flex Storage supports flexible retention up to 15 months. Flex Logs Starter includes bundled compute for retention of 3-15 months.

Source
Redis: What is Redis used for?

Redis is an in-memory data structure store used primarily as a cache, database, and message broker. It provides high-speed data access for real-time applications, sessions, leaderboards, real-time analytics, and other use cases requiring fast data retrieval.

Source
Datadog Logs: Is there a cost to forward logs to external systems?

Yes, log forwarding costs $0.25/GB outbound per destination for routing logs to external systems.

Source
Datadog Logs: What discounts are available for high-volume customers?

Multi-year and volume discounts are available for customers processing 3B+ events per month.

Source
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