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PostgreSQL vs Redis comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 14, 2025

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

PostgreSQL
Ranking in Vector Databases
11th
Average Rating
8.4
Reviews Sentiment
7.7
Number of Reviews
125
Ranking in other categories
Open Source Databases (2nd)
Redis
Ranking in Vector Databases
3rd
Average Rating
8.8
Reviews Sentiment
5.7
Number of Reviews
23
Ranking in other categories
NoSQL Databases (5th), Managed NoSQL Databases (9th), In-Memory Data Store Services (1st), AI Software Development (17th)
 

Mindshare comparison

As of January 2026, in the Vector Databases category, the mindshare of PostgreSQL is 5.7%, up from 4.1% compared to the previous year. The mindshare of Redis is 5.4%, up from 5.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vector Databases Market Share Distribution
ProductMarket Share (%)
Redis5.4%
PostgreSQL5.7%
Other88.9%
Vector Databases
 

Featured Reviews

AC
Senior Assosiate Consultant at Applied Materials
Real-time data capture optimizes database performance but Views create problems
One of the most valuable features is real-time data capture; it optimizes database performance. I think using real-time data capture reduces job running time and the amount of data sent at once with batch loads. Replicating the same data daily isn't optimal, so real-time reception improves application performance and reduces latency.
KG
Database Admin and Architect at D-EDGE Hospitality Solutions
Performance shines with seamless session caching and minimal configuration
The best features of Redis, from my personal perspective, are the performance, which is very quick, and it's very simple to implement. Since I started using Redis, I feel that the product is saving me some performance tuning time. It's very easy, I have few parameters to tune, and it seems to have performance without a lot of working on the performance, compared to Cassandra, where you have to configure the memory and many other settings. The integration capability of Redis is excellent. Redis is very affordable because it's free.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The solution is quite stable."
"PostgreSQL is stable. It's available, stable, and reliable."
"It's a useful solution, that can be widely used."
"The product is very similar to the SQL Server."
"It is a pretty comprehensive database system. Its performance is good, and it does what it is supposed to do. It also integrates very well."
"It has completely met our needs. It works, and it is robust. We haven't had any problems with what PostgreSQL does for us and the way it does it. That's why we've been using it for so long. We understand it, and it does the job."
"The system can perform faster analysis by providing it with a lot of memory. Speed is crucial for analytics. Currently, the main reason we haven't adopted Elasticsearch is that we lack the necessary expertise to manage it."
"We use the solution to store tables. It is stable and performs well."
"The solution's technical support team is good...The solution's initial setup process was straightforward."
"What I like best about Redis is its fast and easy use. It has interesting algorithms like HyperLogLog and provides useful features. It's also good for implementing scalable rate limiting."
"The solution is fast, provides good performance, and is not too expensive."
"It is particularly efficient for cloud-based storage and operations."
"The ability to fetch and save data quickly is valuable."
"I use Redis mostly to cache repeated data that is required."
"The best thing about Redis is its ability to handle large amounts of data without frequently hitting the database. You can store data in temporary memory, especially for high-volume data."
"The most valuable features of Redis are its ease of use and speed. It does not have access to the disc and it is fast."
 

Cons

"The price could be better."
"The interface climate could be better."
"It still needs to be more mature and have some backup feature. We are normally dealing with Oracle's data, and we have very strong online tools to back up the data and do other things. PostgreSQL still needs to do more in this area as well as in the high availability area. There are many external tools that you can use for PostgreSQL's high availability, but there is no embedded tool within PostgreSQL for high availability. It could have a feature similar to Oracle for working on a distributed system. It can have some scripts to improve the monitoring and some tools to do performance analysis. We have a workaround for most of such requirements except for the support for a distributed system, which is very difficult to have. This area should be included in the core of the database itself."
"The search option is not very good."
"Integration with other platforms could be improved."
"PostgreSQL’s performance could be improved."
"The pricing could be better."
"There could be a plugin to distribute the data on servers for the product."
"The solution's pricing for a local installation is very expensive."
"Redis could be improved by introducing a GUI to display key-value pair database information, as it is currently a CLI tool with no visual representation."
"The only thing is the lack of a GUI application. There was a time when we needed to resolve an issue in production. If we had a GUI, it would have been easier."
"I would prefer it if there was more information available about Redis. That would make it easier for new beginners. Currently, there is a lack of resources."
"There are some features from MongoDB that I would like to see included in Redis to enhance its overall efficiency, such as the ability to perform remote behaviour. MongoDB is more efficient in handling updates than deletions and is quicker in processing updates, but it can be slower regarding deletions. This can sometimes pose a challenge, especially when dealing with large datasets or frequent data manipulations that involve deletions. In such cases, I often rewrite columns or update values instead of directly deleting data, as it can be more efficient."
"If we use a lot of data, it will eventually cost us a lot."
"Redis should have an option to operate without Docker on a local PC."
"For the PubSub feature, we had to create our own tools to monitor the events."
 

Pricing and Cost Advice

"It is open-source. If you use it on-premise, it is free. It also has enterprise or commercial versions. If you go for the cloud version, there will be a cost, but it is lower than Oracle or Microsoft."
"It is an open-source platform."
"PostgreSQL is a free and open-source database."
"PostgreSQL is open-source, so if capable admins are available then the setup cost can be $0."
"The community version of Postgre is basically free."
"Affordable solution."
"We do not pay for licensing."
"This solution can offer a cheaper choice for customers since it is open-source."
"Redis is an open-source solution. There are not any hidden fees."
"The tool is open-source. There are no additional costs."
"Redis is not an overpriced solution."
"Redis is an open-source product."
"We saw an ROI. It made the processing of our transactions faster."
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Financial Services Firm
11%
Comms Service Provider
10%
Manufacturing Company
6%
Financial Services Firm
26%
Computer Software Company
10%
Comms Service Provider
8%
University
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business57
Midsize Enterprise26
Large Enterprise46
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise3
Large Enterprise8
 

Questions from the Community

How does Firebird SQL compare with PostgreSQL?
PostgreSQL was designed in a way that provides you with not only a high degree of flexibility but also offers you a cheap and easy-to-use solution. It gives you the ability to redesign and audit yo...
What do you like most about PostgreSQL?
It's a transactional database, so we use Postgres for most of our reporting. That's where it's helping.
What is your experience regarding pricing and costs for PostgreSQL?
The tool is free of cost. For now, it's not about making money. But once we perfect it, we can offer it to customers willing to pay for support and other services. Most of my deployments are free.
What do you like most about Redis?
Redis is better tested and is used by large companies. I haven't found a direct alternative to what Redis offers. Plus, there are a lot of support and learning resources available, which help you u...
What needs improvement with Redis?
The disadvantage of Redis is that it's a little bit hard to have too many clusters or too many nodes and create the clusters. The sync between the nodes is easier to implement with Couchbase, for e...
What is your primary use case for Redis?
Redis is used for a part of a booking engine for travel, specifically for the front part to get some sessions and information about the sessions. If a customer or user is using the sites in differe...
 

Comparisons

 

Also Known As

No data available
Redis Enterprise
 

Overview

 

Sample Customers

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Find out what your peers are saying about PostgreSQL vs. Redis and other solutions. Updated: December 2025.
881,082 professionals have used our research since 2012.