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Technology · head to head

Redis vs Superhuman

Redis logo

Redis

Technology

The real-time data platform

From
Free
Rated
-
Full reviewWebsite
Superhuman logo

Superhuman

Technology

The fastest email experience ever made

From
$30/month
Rated
-
Full reviewWebsite

The short version

  • Only Redis has a free tier, so it costs nothing to try first.
  • Each has a real cost: Redis licensing changed from BSD to AGPL in 2025, impacting open-source usage; Superhuman high pricing compared to free alternatives like Gmail
  • They diverge on capability: Redis covers In-memory data store, Superhuman covers Blazing fast performance.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Redis and Superhuman actually diverge.

Attributes where Redis and Superhuman differ
AttributeRedisSuperhuman
Starting priceFree$30/month
Free tierYesNo
PlatformsLinux, macOS, WindowsWeb, iOS
Founded20092015

Identical on both: pricing model (Unknown), user rating (Not yet rated), category (Technology).

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 Redis

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

Only in Superhuman

  • Blazing fast performance
  • Keyboard-first design
  • AI-powered triage
  • Split inbox
  • Read statuses
  • Remind me later
  • Social insights
  • Calendar integration

Both cover

  • Encryption

What people use each for

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

Redis

  • Cachingnot Superhuman
  • Session managementnot Superhuman
  • Real-time analyticsnot Superhuman
  • Message queuingnot Superhuman
  • Leaderboardsnot Superhuman

Superhuman

  • Email managementnot Redis
  • Inbox zeronot Redis
  • Team collaborationnot Redis
  • Sales outreachnot Redis
  • Executive communicationnot Redis

Where each one falls short

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

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

Superhuman

  • High pricing compared to free alternatives like Gmail
  • Lacks unified inbox for managing multiple email accounts in a single view
  • Limited calendar functionality compared to dedicated scheduling tools
  • No native task management features

Pricing, plan by plan

Redis

Free

No published plan breakdown. See the Redis review.

Superhuman

$30/month
  • Starter$30/month
    • Email productivity
    • Superhuman AI
    • Team collaboration
  • Business$40/month
    • Auto Drafts
    • Ask AI
    • CRM integrations

Which should you pick?

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

Choose Superhuman if

  • You need blazing fast performance.
  • You work on Web, iOS.
  • You also want keyboard-first design.
Superhuman review

Questions people ask

Is Redis or Superhuman better?
Neither clearly leads. Redis starts at Free and Superhuman at $30/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Redis or Superhuman?
Redis has a free tier; the other does not. Paid plans start at Free for Redis and $30/month for Superhuman.
Does Redis or Superhuman run on more platforms?
Redis runs on Linux, macOS, Windows. Superhuman runs on Web, iOS.
Can I use Redis for free?
Yes. Redis has a free tier, so you can try it without paying. Superhuman starts at $30/month.
What is Redis best used for?
Redis is most often used for caching, session management, real-time analytics, message queuing. Of those, caching and session management are not what Superhuman is typically brought in for.
What can Redis do that Superhuman cannot?
Redis covers In-memory data store, Data structures, Pub/Sub messaging, Lua scripting. Superhuman covers Blazing fast performance, Keyboard-first design, AI-powered triage, Split inbox. Both handle Encryption.

Answered from the vendors’ own pages

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
Superhuman: How much does Superhuman cost?

Superhuman offers three plans: Starter at $30/user/month, Business at $40/user/month, and Enterprise with custom pricing. Annual billing provides approximately 16.7% savings, bringing the Starter plan to $25/month.

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
Superhuman: What email platforms does Superhuman work with?

Superhuman is compatible with Gmail and Outlook, and integrates with Google Calendar and Akiflow for calendar and task planning workflows.

Source
Superhuman: Does the Business plan include CRM integrations?

Yes, the Business plan at $40/month unlocks CRM integrations with HubSpot and Salesforce, along with advanced AI features like Auto Drafts and Ask AI.

Source
Superhuman: What happened to Superhuman after the Grammarly acquisition?

Superhuman was acquired by Grammarly on July 1, 2025. The company now operates under the Superhuman name while integrating with Grammarly's AI platform.

Source
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