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Lambda (AWS Serverless) vs Tailscale

Lambda (AWS Serverless) logo

Lambda (AWS Serverless)

Software

Run code without thinking about servers

From
Free
Rated
-
Tailscale logo

Tailscale

Software

Zero-trust mesh VPN built on WireGuard with identity-based access

From
Free
Rated
-

The short version

  • Each has a real cost: Lambda (AWS Serverless) billed on two axes at once, $0.20 per million requests plus $0.0000166667 per GB-second of duration, so memory settings change the bill as much as traffic does; Tailscale requires active configuration and management; cannot be deployed passively like consumer VPNs

Where they differ

Only the attributes on which Lambda (AWS Serverless) and Tailscale actually diverge.

Attributes where Lambda (AWS Serverless) and Tailscale differ
AttributeLambda (AWS Serverless)Tailscale
Pricing modelusage-basedfreemium
PlatformsWeb, ApiLinux, macOS, Windows, iOS, Android, API, Web
Founded2014Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Lambda (AWS Serverless)

  • Function-as-a-Service
  • Event-driven execution
  • Auto-scaling
  • Pay-per-use
  • Multiple languages
  • Concurrency limits
  • Dead Letter Queues
  • Environment variables

Only in Tailscale

Nothing recorded that Lambda (AWS Serverless) does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Lambda (AWS Serverless)

  • Event-driven functions without managing serversnot Tailscale
  • API backends behind API Gatewaynot Tailscale
  • Processing S3, DynamoDB, SQS and Kinesis eventsnot Tailscale
  • Scheduled jobs without a always-on instancenot Tailscale
  • Edge compute through Lambda@Edgenot Tailscale

Tailscale

  • Remote team access to internal services without VPN concentratorsnot Lambda (AWS Serverless)
  • Hybrid cloud connectivity across AWS, Azure, GCP, and on-premises networksnot Lambda (AWS Serverless)
  • CI/CD pipeline access to internal infrastructure (databases, Kubernetes clusters)not Lambda (AWS Serverless)
  • Zero-trust access to SSH, Kubernetes, and databases without bastion hostsnot Lambda (AWS Serverless)
  • Mobile and IoT device management in enterprise environmentsnot Lambda (AWS Serverless)
  • Temporary contractor and third-party access controlnot Lambda (AWS Serverless)

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Lambda (AWS Serverless)

  • Billed on two axes at once, $0.20 per million requests plus $0.0000166667 per GB-second of duration, so memory settings change the bill as much as traffic does
  • Provisioned concurrency, used to avoid cold starts, is charged separately at $0.0000041667 per GB-second whether or not the function runs
  • Ephemeral storage beyond the included 512 MB is metered
  • Lambda@Edge costs $0.60 per million requests, three times the standard request rate
  • VPC use and cross-region data transfer carry EC2 charges on top

Tailscale

  • Requires active configuration and management; cannot be deployed passively like consumer VPNs
  • Device posture policies and JIT access tiers are locked behind Premium subscription (£18/month), raising per-user costs for enterprises
  • Limited support for legacy protocols and non-modern operating systems (Windows 7, older Android versions)
  • Centralised control plane operated by Tailscale (hosted in US); no self-hosted control plane option for air-gapped or sovereign deployments
  • Cannot replace full VPN functionality for accessing legacy IP-based services; only applicable to modern infrastructure

Pricing, plan by plan

Lambda (AWS Serverless)

Free
  • Free TierFree
    • 1M free requests/month
    • 400,000 GB-seconds/month
    • Always free

Tailscale

Free
  • PersonalFree
    • Up to 6 users
    • Unlimited devices per user
    • 1,000 ephemeral resource minutes per month
  • Standard$8/month
    • Unlimited users
    • Unlimited devices
    • 1,000 ephemeral resource minutes per month
  • Premium$18/month
    • Unlimited users and devices
    • 10,000 ephemeral resource minutes per month
    • 300 ACL groups
  • EnterpriseFree
    • Custom pricing
    • Unlimited resources
    • Advanced security features

Which should you pick?

Choose Lambda (AWS Serverless) if

  • You need function-as-a-service.
  • You want to start without paying.
  • You work on Web, Api.
  • You also want event-driven execution.

Choose Tailscale if

  • You want to start without paying.
  • You work on Linux, macOS, Windows, iOS, Android, API, Web.

Questions people ask

Is Lambda (AWS Serverless) or Tailscale better?
Neither clearly leads. Lambda (AWS Serverless) starts at Free and Tailscale at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Lambda (AWS Serverless) or Tailscale?
Lambda (AWS Serverless) starts at Free and Tailscale at Free.
Does Lambda (AWS Serverless) or Tailscale run on more platforms?
Lambda (AWS Serverless) runs on Web, Api. Tailscale runs on Linux, macOS, Windows, iOS, Android, API, Web.
Can I use Lambda (AWS Serverless) for free?
Both have a free tier, so you can try either at no cost before committing.
What is Lambda (AWS Serverless) best used for?
Lambda (AWS Serverless) is most often used for event-driven functions without managing servers, api backends behind api gateway, processing s3, dynamodb, sqs and kinesis events, scheduled jobs without a always-on instance. Of those, event-driven functions without managing servers and api backends behind api gateway are not what Tailscale is typically brought in for.
What can Lambda (AWS Serverless) do that Tailscale cannot?
Lambda (AWS Serverless) covers Function-as-a-Service, Event-driven execution, Auto-scaling, Pay-per-use.

Answered from the vendors’ own pages

Tailscale: Is Tailscale free?

Tailscale Personal tier is free forever for up to 6 users. Standard (£8/month per user) adds team features, Premium (£18/month per user) adds security controls, and Enterprise tiers are custom priced.

Source
Tailscale: Does Tailscale route all traffic through a central gateway?

No. Tailscale creates direct encrypted connections between devices using WireGuard. It only proxies traffic when direct peer connections are not possible (some restrictive NAT scenarios). This reduces latency and eliminates VPN gateway bottlenecks.

Source
Tailscale: Can I host Tailscale on-premises?

No. Tailscale provides a hosted control plane only. For fully self-hosted mesh networking, consider WireGuard with manual key management or Netmaker. Tailscale Enterprise can provide custom deployments for specific requirements.

Source

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