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Momento vs Redis

Momento: Managed Valkey and serverless cache/pub-sub from ex-DynamoDB engineers, plus self-hosted Valkey tooling. Redis: The in-memory data structure server that became the default cache, now with search, JSON and vectors built in.

key differences

  • Licensing: Momento is proprietary (Proprietary service (SDKs Apache-2.0)); Redis is open source (copyleft) (Tri-license: AGPLv3, RSALv2 or SSPLv1 (Redis 8+)).
  • Momento is built for larger datasets (≤ 1 PB) than Redis (≤ 10 TB).
  • Transactions: Momento offers none ACID; Redis offers limited.
  • Only Redis has transactions, secondary indexes, full-text search, vector search, geospatial.
  • Momento has a serverless option; Redis does not.

choose momento for

  • +Caching for spiky media and live-event traffic
  • +Real-time pub/sub to browsers and mobile apps
  • +Outsourcing large Valkey fleet operations

best at · Cache, Pub/Sub, Sessions

choose redis for

  • +Application and database query caching
  • +Session storage and user tokens
  • +Rate limiting and distributed locks
  • +Leaderboards and counters

best at · Cache, Sessions, Queue

MomentoManaged Valkey and serverless cache/pub-sub from ex-DynamoDB engineers, plus self-hosted Valkey tooling.
RedisThe in-memory data structure server that became the default cache, now with search, JSON and vectors built in.
overview
Primary model
Key-Value
Key-Value
Also supports
–
Document, Vector, Time-Series, Search Engine
Type
Managed service
Database engine
Status
Active
Active
Developer
Momento Inc.
Redis Ltd.
First release
2022
2009
Latest version
–
8.10.3 (Oct 26, 2026)
License
ProprietaryProprietary service (SDKs Apache-2.0)
Open source (copyleft)Tri-license: AGPLv3, RSALv2 or SSPLv1 (Redis 8+)
Free tier
✓
✓
popularity
WhichDB Score
9.0
84.3
Rank
#319
#2
GitHub stars
60
77.1K
Stack Overflow questions
–
25.4K
scale & guarantees
Comfortable data size
Large (≤ 1 PB)
Medium (≤ 10 TB)
Horizontal scaling
Native
Native
Multi-region
None
Active active
ACID
None
Limited
Consistency
Eventual
Eventual
Schema
Schemaless
Schemaless
Architecture
Serverless, Distributed, In memory
In memory, Single node, Primary replica, Distributed, Client server
deployment
Self-hosted
✓
✓
Vendor-managed cloud
✓
✓
Serverless
✓
—
Embedded
—
—
Edge
—
—
Clouds
AWS, Google Cloud
AWS, Google Cloud, Azure, DigitalOcean, Heroku, Render
capabilities
Transactions
—
✓
Joins
—
—
Secondary indexes
—
✓
Full-text search
—
✓
Vector search
—
✓
Geospatial
—
✓
JSON
—
✓
Change data capture
—
—
Triggers
—
—
Stored procedures
—
✓
Materialized views
—
—
TTL / expiry
✓
✓
Pub/Sub
✓
✓
Columnar storage
—
—
In-memory
✓
✓
Durable persistence
—
✓
Compression
—
—
Encryption at rest
—
—
Role-based access
✓
✓
Time travel
—
—
Branching
—
—
Online schema changes
—
—
Streaming ingest
—
✓
Offline sync
—
—
Runs in WebAssembly
—
—
interfaces
Query languages
Momento SDK API, Redis commands (RESP)
Redis commands (RESP), Lua, Redis Query Engine (FT.*)
Client languages
JavaScript, Python, Go, Java, C#, Rust, PHP, Ruby
Python, Java, JavaScript, Go, C#, Rust, Ruby, PHP
Best for
Cache, Pub/Sub, Sessions
Cache, Sessions, Queue, Pub/Sub
Add more to this comparisonNot sure either fits? Try smart match

Momento vs Redis: FAQ

What is the difference between Momento and Redis?

Momento: Managed Valkey and serverless cache/pub-sub from ex-DynamoDB engineers, plus self-hosted Valkey tooling. Redis: The in-memory data structure server that became the default cache, now with search, JSON and vectors built in. Licensing: Momento is proprietary (Proprietary service (SDKs Apache-2.0)); Redis is open source (copyleft) (Tri-license: AGPLv3, RSALv2 or SSPLv1 (Redis 8+)). Momento is built for larger datasets (≤ 1 PB) than Redis (≤ 10 TB). Transactions: Momento offers none ACID; Redis offers limited.

When should I choose Momento over Redis?

Choose Momento for caching for spiky media and live-event traffic; real-time pub/sub to browsers and mobile apps; and outsourcing large Valkey fleet operations. Choose Redis for application and database query caching; session storage and user tokens; and rate limiting and distributed locks.

Is Momento or Redis more popular?

Redis ranks #2 on the WhichDB Score (84.3/100) and Momento ranks #319 (9.0/100). Popularity is not fit: check the requirements that matter for your project.

Are Momento and Redis open source?

No. Momento is proprietary, closed-source software. Yes. Redis is open source. License: Tri-license: AGPLv3, RSALv2 or SSPLv1 (Redis 8+).