Pricing

Start free. Upgrade when it matters.

Free includes enough to ship a real indie app. Paid plans add more projects, unlimited locales, more environments and faster support.

Free

€0

Ship your first app

  • 1 project
  • 1,000 string keys per project
  • 3 locales per project
  • 2 environments per project
  • 3 seats
  • Community support
  • A/B testing in staging

Pro

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€29€14.50/mo

2026 Promo for new subscribers

For a growing product

  • 10 projects
  • 5,000 keys per project
  • Unlimited locales
  • 5 environments per project
  • 5 seats
  • Email support, 48h
  • 50 A/B experiments in production

Team

Save 50%
€99€49.50/mo

2026 Promo for new subscribers

For a shipping team

  • 100 projects
  • 10,000 keys per project
  • Unlimited locales
  • 10 environments per project
  • 20 seats
  • Email 24h + shared Slack
  • 500 A/B experiments in production

Annual billing includes two months free.

Included on every plan

Signing, SDK verification, offline fallback, CLI, MCP and SDKs are included from day one. Core delivery is not an enterprise upsell.

Ed25519 signed bundlesSDK verificationICU validationEvery SDKHTTPS / TLSCDN-first deliveryOffline fallbackCLI + MCP

FAQ

Questions before you hand strings to an agent.

Is this just AI translating JSON files?

No. AI can draft translations anywhere. AirStrings adds the production layer around it: keys, environments, signed bundles, CDN delivery, SDK verification and rollback.

Is this priced for indies?

Start free with 3 seats and 3 locales. Pro is a flat €29 per month and Team is a flat €99 per month when you need more room.

What happens when users are offline?

SDKs serve strings from a verified disk cache after the first fetch. With nothing cached, they fall back to key names instead of crashing your UI.

What if I outgrow it or leave?

The SDKs are MIT-licensed, and cached bundles keep working on devices. Your source strings can live in your project workspace, so you are not trapped if you leave.

Free plan · No credit card

Let your agent ship the next string.

Create a free project, install the CLI and ask your assistant to make a safe copy change end to end.