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Better Stack vs Fly.io

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Better Stack compared with Fly.io
DetailBetter StackFly.io
What it doesThe AI SRE observability stack at a fraction of your current costs Computers for agents
StageEstablished Established
FoundedNot given Not given
Based inNot given Not given
Pricing modelNot given freemium
PricingFree tier includes 10 monitors, 1 status page, 100,000 exceptions per month, and basic alerts. Responder licenses start at $29-34/month including unlimited phone/SMS. Telemetry bundles (Nano $25-38, Micro $100-150, Mega $210-315, Tera $420-630/month) provide logs, traces, and metrics retention. Addi Free tier available. Machines billed by the second based on CPU and RAM preset; Sprites metered by CPU-hour and GB-hour for active use; Managed Postgres plans from $38/month. Support tiers from free community to $199/month Premium or Enterprise from $2,500/month. HIPAA compliance available at $99/mo
Key features
  • eBPF-based service map with network flow visualization
  • OpenTelemetry-native instrumentation with no code changes
  • AI SRE agent for agentic root cause analysis
  • Smart incident merging for batch alerts
  • Session replay with 2x speed playback
  • Playwright-based transaction monitoring
  • Unlimited phone call alerts and SMS
  • SQL and drag-and-drop log querying
  • Custom CSS and JavaScript status pages
  • MCP server for LLM workflow integration
  • Machines
  • Sprites
  • Private Networking
  • Zero Downtime Deploys
  • Sprites Connectors
  • Granular Routing
  • Monitoring
  • Sprite Block Device
What makes it different
  • 30x cheaper than Datadog with predictable pricing
  • Agentic AI SRE for automated incident investigation
  • No sampling or 80x more data ingestion for same cost
  • 60-day money-back guarantee
  • Sentry-compatible at 1/6th the price
  • Agents get their own Linux computer that checkpoints state automatically
  • Machines boot in under a second and run close to users globally
  • Same primitives scale from side project to production without rewriting infrastructure
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)91 no change since last check83 no change since last check
Trust Flow (Majestic)5239
Citation Flow (Majestic)6157
Referring domains (Majestic)1619110844

5 details filled in for both companies.

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