Kong Reviews
Kong Reviews

Bluesky tech stack

Bluesky is open social media, built on the AT Protocol. It runs on React Native, Expo, AT Protocol, GrowthBook and 2 more, read from its public repo bluesky-social/social-app.

A microblogging network with custom feeds, moderation you can choose and portable accounts. Free, on the web, iOS and Android from one React Native codebase.

Social & community · web, ios, android · https://bsky.app · 18,361 GitHub stars, MIT (2026-10-28) · App Store 3.9 from 13,801 ratings (2026-10-28)

Built with

Mobile

  • React Native (package.json: react-native)
  • Expo (package.json: expo; eas.json)

Backend

  • AT Protocol (package.json: @atproto/api)

Analytics

  • GrowthBook (.env.example: EXPO_PUBLIC_GROWTHBOOK_CLIENT_KEY)

Monitoring

  • Bitdrift (.env.example: EXPO_PUBLIC_BITDRIFT_API_KEY)
  • Sentry (package.json: @sentry/react-native)

This page as Markdown

What do I use to build this?
And how much will it cost?What do you want to build?

Describe it in a sentence, like “an app that tracks the beans in my pantry”. You get what to build it with, what it runs on, and what it costs now and as it grows, with a source for every price.Describe it and press Plan. You get what to build it with, what it runs on, and what it costs now and as you grow, after the credits you qualify for.

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Prices read from each vendor’s own pricing page

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  • Clerk
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  • Cloudflare
  • PostHog

317 services listed across 36 categories. 70 priced in full, plan by plan.

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Already built? Find what to keep and what to change.

What you actually pay, next to what you planned.

See what real products are built on.

Recordings of the actual app. Inputs are illustrative; Billing shows an example account.

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I’m building a booking app for yoga studios with sign-in, payments and email reminders. What should it run on, and what will it cost at 20,000 users?

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No vendor pays to be listed or ranked higher, and there are no referral links.

Every price change is public: who changed what, when and why.

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Import a CSV, upload a text-based PDF, paste an invoice or enter an amount. Recurring subscriptions add completed months automatically.

Supported OpenAI, Anthropic, Vercel, Stripe, AWS and DigitalOcean connections sync completed months nightly. Billing access depends on the provider; personal Claude API keys cannot read organization costs.

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When receipt forwarding is enabled, send receipts to your private billing address and review the service, month and amount in Billing. It reads the email body, not attachments; upload PDFs separately.

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