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Severalnines vs Aiven

Severalnines and Aiven both land on Depends.

Aiven

aiven.io

Depends
Confidence: Medium

Buy it if you run serious multi-service data infrastructure . Kafka plus databases across clouds . and want it managed.

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Severalnines versus Aiven
CompareSeveralninesAiven
VerdictDependsDepends
Best forTeams running many open-source databases across hybrid environmentsTeams running Kafka plus databases across clouds
Who it's not forSolo founders or small teams with one or two managed cloud databasesAnyone needing just one small database
PrivacyNo known public vulnerabilities found in the sources reviewed.¹Active security program . TLS enforcement, DPA, compliance pages and published CVE advisories; no breaches reported in reviewed sources.10
Support qualityNo user evidence foundNo user review evidence found
Public sentimentNo independent user reviews were found in the sources reviewed.G2 reviewers praise simplicity and breadth, while Reddit threads debate whether it beats cheaper native cloud or Supabase options.²
Biggest gotchaPricing hidden behind trial and sales; no tiers published on reviewed pages14Hourly per-service billing multiplies quickly across Kafka, databases and tiers⁷

Pick Severalnines when

  • Teams running many open-source databases across hybrid environments
  • Air-gapped or compliance-heavy shops
  • Service providers launching managed DBaaS (CCX)
  • Platform teams standardizing Postgres, MySQL, MongoDB ops

When Severalnines is not a fit

  • Solo founders or small teams with one or two managed cloud databases
  • Anyone wanting published pricing before talking to sales
  • Non-technical teams wanting zero-ops database hosting
  • Shops already comfortable inside AWS RDS or Cloud SQL

Pick Aiven when

  • Teams running Kafka plus databases across clouds
  • Data engineering teams wanting managed open source
  • Multi-cloud shops avoiding single-vendor lock-in
  • Realtime/AI data pipelines

When Aiven is not a fit

  • Anyone needing just one small database
  • Single-cloud teams . native RDS or Cloud SQL is simpler
  • Non-technical teams wanting zero ops
  • Tiny projects . cheaper free tiers exist elsewhere

Sources

  1. Severalnines Product Security Pageseveralnines.com
    security
  2. Aiven Products | 385 Reviews on G2g2.com
    review
  3. Aiven for Apache Kafka Reviews | G2g2.com
    review
  4. Thoughts on Aiven vs cloud vendor services? | Reddit r/devopsreddit.com
    review
  5. Is Aiven PostgreSQL better than Supabase? | Reddit r/PostgreSQLreddit.com
    review
  6. Aiven . official siteaiven.io
    official
  7. Aiven Plans and Pricingaiven.io
    official
  8. Introducing Developer Tier for Aiven for PostgreSQLaiven.io
    official
  9. Security, Privacy & Compliance | Aivenaiven.io
    security
  10. Aiven CVE-2025-49844 Redis/Valkey changelogaiven.io
    security
  11. How Much Did Aiven Raise? | Clayclay.com
    news
  12. Aiven Revenue 2025 | GetLatkagetlatka.com
    news
  13. Aiven for PostgreSQL Reviews | SoftwareAdvicesoftwareadvice.com
    review
  14. severalnines.comseveralnines.com
    review