Fly.io vs Substack
A detailed comparison of Fly.io and Substack in 2026. Compare pricing plans, features, and find out which development service is right for you.
Fly.io
Deploy app servers close to your users globally
Fly.io is a developer tools and infrastructure service that provides deploy app servers close to your users globally. Founded in 2017 and headquartered in Chicago, Illinois, Fly.io offers 3 pricing plans. It offers a free tier as well as paid plans starting from $29/month. Key features include Global deployment, Edge computing, GPU machines, Managed Postgres. Fly.io is a popular choice for users looking for quality development subscriptions.
Substack
Platform for independent newsletter writers
Substack is a news and media service that provides platform for independent newsletter writers. Founded in 2017 and headquartered in San Francisco, California, Substack offers 2 pricing plans. It offers a free tier as well as paid plans starting from $undefined/month. Key features include Newsletter platform, Podcasts, Chat, Notes. Substack is a popular choice for users looking for quality news subscriptions.
Feature Comparison
Side-by-side comparison of features and capabilities
| Feature | Fly.io | Substack |
|---|---|---|
| Starting Price | Free | Free |
| Plans Available | 3 | 2 |
| Year Founded | 2017 | 2017 |
| Headquarters | Chicago, Illinois | San Francisco, California |
| Global deployment | ||
| Edge computing | ||
| GPU machines | ||
| Managed Postgres | ||
| Autoscaling | ||
| Private networking | ||
| Newsletter platform | ||
| Podcasts | ||
| Chat | ||
| Notes | ||
| Community | ||
| Monetization |
Pricing Comparison
Compare all available plans and pricing tiers
Fly.io Pricing
Substack Pricing
Frequently Asked Questions
Is Fly.io or Substack better in 2026?
Both Fly.io and Substack are excellent development services. Fly.io offers Global deployment and Edge computing, while Substack features Newsletter platform and Podcasts. The best choice depends on your specific needs and budget.
How much does Fly.io cost compared to Substack?
Fly.io starts at $29/month, while Substack starts at $Free/month. Both offer multiple pricing tiers to fit different budgets.
Can I track both Fly.io and Substack subscriptions?
Yes! TrackMySubscriptions lets you track all your subscriptions in one place, including Fly.io and Substack. Get renewal alerts, spending analytics, and never miss a payment — 100% free.
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Track Both Services in One Dashboard
Whether you choose Fly.io, Substack, or both — track all your subscriptions in one place with smart alerts and analytics.