Fly.ioLaunch computers for agents, code sandboxes, and your next app.
vs
HerokuThe AI cloud application platform, from Salesforce, for deploying, managing, and scaling your apps.
Comparison · CI/CD · weekly run Nov 3
Fly.io vs Heroku
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Heroku is the stronger AI pick in CI/CD: it has a visibility score of 0.3 versus 0 for Fly.io.
Choose Fly.io if…
- You want a free plan to start
- You need SOC 2 Type 2 or HIPAA (BAA pre-signed on HIPAA package) coverage
- Usage-based pricing suits your budget better than flat tiers
Choose Heroku if…
- You want the brand AI engines rank higher (0.3 vs 0)
- You want a lower entry price ($5 vs $38)
- You need PCI DSS Level 1 Service Provider or HIPAA or ISO 27001 or ISO 27017 or ISO 27018 or SOC 1 or SOC 2 or SOC 3 coverage
- You prefer a larger, established vendor (201–500 employees)
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Fly.io | Heroku |
|---|---|---|
| Visibility score | 0% | 0.3% |
| Change vs last week | New | New |
| Rank in CI/CD | #38 | #31 |
| Share of voice | 0% | 0.2% |
| Mentions this run | 0 | 1 |
| Positive in AI answers | — | 0% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Fly.io 0pp · Heroku 0pp over 0 weekly runs.
Engine by engine
Heroku leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
Fly.ioHeroku
Head to head in AI answers
0 engine answers name both brands
0Fly.io ranked higher
0Heroku ranked higher
Features, pricing & fit
| Dimension | Fly.io | Heroku |
|---|---|---|
| Pricing model | Usage-based | Flat tiers |
| Entry price | Free; paid from $38 / mo | $5 / mo |
| Free plan | Yes | No |
| Deployment | Operated by Fly.io on its own hardware across 18+ regions worldwide, deployed from GitHub or the fly CLI. | Fully managed cloud platform as a service (container-based) |
| Integrations | — | 150+ |
| Compliance | SOC 2 Type 2, HIPAA (BAA pre-signed on HIPAA package) | PCI DSS Level 1 Service Provider, HIPAA, ISO 27001, ISO 27017, ISO 27018, SOC 1, SOC 2, SOC 3 |
| Support | Community support (free), Paid Standard, Premium and Enterprise support tiers, Dedicated Slack channel on Premium and Enterprise | Enterprise-grade support with SLAs and onboarding for Heroku Enterprise customers |
| Founded | 2017 | 2007 |
| Headquarters | Chicago, Illinois, United States | San Francisco, California, United States (Salesforce headquarters, 415 Mission St) |
| Employees | 51–200 | 201–500 |
| Funding | Seed · $136M raised | Series A dated March 13, 2013 (amount redacted, not confirmed) |
| Best for | Developers and teams that want to ship apps, AI agents and code sandboxes without managing infrastructure. | Developers, startups, agencies and enterprises that want to deploy and scale apps without managing servers |
Plans side by side
Heroku
Eco$5per dyno per month
Basic$7per dyno per month
Standard-1X$25per dyno per month
Standard-2X$50per dyno per month
Performance-M$250per dyno per month
Performance-L$500per dyno per month
Performance-L-RAM$500per dyno per month
Performance-XL$750per dyno per month
Performance-2XL$1,500per dyno per month
Private-S$125per dyno per month
Private-M$250per dyno per month
Shield-S$150per dyno per month
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Fly.io vs Heroku”, https://slateindex.ai/compare/fly-io-vs-heroku, data of Nov 3, 2026. Licence: CC BY 4.0.