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Developer Tools · head to head

GNAT Pro vs Redis

GNAT Pro logo

GNAT Pro

Developer Tools

Software development environments and toolchains for Ada, C/C++ and Rust

From
On request
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: GNAT Pro no pricing published on website; requires contacting AdaCore directly for quotes; Redis licensing changed from BSD to AGPL in 2025, impacting open-source usage

Where they differ

Only the attributes on which GNAT Pro and Redis actually diverge.

Attributes where GNAT Pro and Redis differ
AttributeGNAT ProRedis
Starting priceOn requestFree
Pricing modelquoteUnknown
Free tierNoYes
PlatformsWebLinux, macOS, Windows
CategoryDeveloper ToolsTechnology
FoundedUnknown2009

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 GNAT Pro

Nothing recorded that Redis does not also cover.

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.

GNAT Pro

  • Building certified avionics software meeting DO-178B/C standardsnot Redis
  • Developing automotive embedded systems with ISO-26262 compliancenot Redis
  • Integrating Ada, C/C++, and Rust components in single codebasenot Redis
  • Managing software supply chain vulnerabilities and SBOMsnot Redis
  • Supporting long-lived software systems spanning decadesnot Redis

Redis

  • Cachingnot GNAT Pro
  • Session managementnot GNAT Pro
  • Real-time analyticsnot GNAT Pro
  • Message queuingnot GNAT Pro
  • Leaderboardsnot GNAT Pro

Where each one falls short

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

GNAT Pro

  • No pricing published on website; requires contacting AdaCore directly for quotes
  • Vendor indicates per-user, per-year subscription model but does not disclose specific costs

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

GNAT Pro

On request

No published plan breakdown. See the GNAT Pro review.

Redis

Free

No published plan breakdown. See the Redis review.

Which should you pick?

Choose GNAT Pro if

Nothing in the data separates GNAT Pro from Redis on the points above - pick on price and on how each one feels to use.

GNAT Pro 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 GNAT Pro or Redis better?
Neither clearly leads. GNAT Pro starts at On request and Redis at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GNAT Pro or Redis?
Redis has a free tier; the other does not. Paid plans start at On request for GNAT Pro and Free for Redis.
Does GNAT Pro or Redis run on more platforms?
GNAT Pro runs on Web. 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. GNAT Pro starts at On request.
What is GNAT Pro best used for?
GNAT Pro is most often used for building certified avionics software meeting do-178b/c standards, developing automotive embedded systems with iso-26262 compliance, integrating ada, c/c++, and rust components in single codebase, managing software supply chain vulnerabilities and sboms. Of those, building certified avionics software meeting do-178b/c standards and developing automotive embedded systems with iso-26262 compliance are not what Redis is typically brought in for.
What can GNAT Pro do that Redis cannot?
Redis covers In-memory data store, Data structures, Pub/Sub messaging, Lua scripting.

Answered from the vendors’ own pages

GNAT Pro: How much does GNAT Pro cost?

GNAT Pro pricing is not published on the website. Customers must request a pricing quote by contacting AdaCore directly or speaking with a GNAT Pro expert.

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
GNAT Pro: What is GNAT Pro licensing model?

GNAT Pro is sold on a per-user, per-year basis with no license locks. Customers can request pricing for their specific needs.

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
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