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Comparison

Upsun (formerly Platform.sh) vs Heroku

Upsun (formerly Platform.sh) and Heroku both land on Depends.

Heroku

heroku.com

Depends
Confidence: Medium

Buy Heroku if you want zero-ops deploys and will pay a premium for convenience, especially on Rails, Django, Node, or with Salesforce.

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Upsun (formerly Platform.sh) versus Heroku
CompareUpsun (formerly Platform.sh)Heroku
VerdictDependsDepends
Best forTeams scaling AI coding agentsRails/Django/Node teams wanting zero-ops deploys
Who it's not forSolo devs or tiny teams shipping simple sitesHobbyists wanting a free tier . eliminated in 2022
PrivacyNo known public vulnerabilities found in the sources reviewed.¹ISO/SOC/HIPAA/PCI compliant, but a 2022 attack using stolen OAuth tokens exposed customer credentials.
Support quality24x7 engineers claimed; no user feedback foundMultiple complaints, including breach-report handling
Public sentimentNo independent user reviews of Upsun surfaced; the reviews found cover the software-factory category or competitor.⁵Reviewers still praise the effortless deploys but increasingly complain about price, support, and whether Heroku has fallen behind newer platforms.12
Biggest gotchaPricing pages exist but no dollar figures surfaced; agent runs could compound costs¹Consumption pricing stacks up: dynos plus add-ons plus managed data services; enterprise tier rising

Pick Upsun (formerly Platform.sh) when

  • Teams scaling AI coding agents
  • Platform engineering orgs needing governed agent workflows
  • Multi-region production apps
  • Compliance-sensitive dev teams

When Upsun (formerly Platform.sh) is not a fit

  • Solo devs or tiny teams shipping simple sites
  • Anyone needing transparent pricing upfront
  • Buyers without real agent workloads yet . hype risk
  • Teams wanting a plain $10/month hosting plan

Pick Heroku when

  • Rails/Django/Node teams wanting zero-ops deploys
  • Salesforce-centric shops (Heroku Connect)
  • Startups to mid-size SaaS prioritizing speed
  • Teams avoiding DevOps hiring

When Heroku is not a fit

  • Hobbyists wanting a free tier . eliminated in 2022
  • Cost-sensitive teams; plain VMs, Railway, or Render cost far less
  • Solo devs hosting one simple app . overkill
  • Teams needing deep infrastructure control or Kubernetes-style config

Sources

  1. Product security pageplatform.sh
    official
  2. Upsun launches Upsun Dispatch (blog)upsun.com
    official
  3. Don't build the autonomous AI factory firstupsun.com
    official
  4. Upsun Launches Upsun Dispatch . TechDogstechdogs.com
    news
  5. Factory AI Reviews . G2g2.com
    review
  6. AI software factory tools in 2026 . Hashnodehashnode.com
    review
  7. Running a Software Factory at Uber Scaleuber.com
    review
  8. Building an AI-Powered Software Factory (Twin Sun case study)zenml.io
    review
  9. How to Build an AI Software Factory . Firecrawlfirecrawl.dev
    review
  10. Upsun (formerly Platform.sh) . LinkedInfr.linkedin.com
    official
  11. Salesforce Heroku Reviews . G2g2.com
    review
  12. Heroku Reviews . Gartner Peer Insightsgartner.com
    review
  13. Heroku Reviews . Trustpilottrustpilot.com
    review
  14. Heroku announces plans to eliminate free plans . TechCrunchtechcrunch.com
    news
  15. Salesforce buys Heroku for $212M . TechCrunchtechcrunch.com
    news
  16. Heroku admits customer credentials stolen . BleepingComputerbleepingcomputer.com
    security