jo-duchan

    jo-duchan/tapflow

    Self-hosted iOS & Android simulator streaming for the whole team

    android
    developer-tools
    mobile
    ios
    self-hosted
    testing
    android-emulator
    app-testing
    appetize-alternative
    browserstack-alternative
    emulator
    TypeScript
    MIT
    1.6K stars
    168 forks
    1.6K GitHub watchers
    Updated Nov 5, 2026
    View on GitHub

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    Where it stands

    Rank, growth pace and release cadence relative to everything GStars tracks.

    5 releases in the last 90 days, the latest 4 days ago, with 24 contributors on GitHub.

    Use Cases & Benefits

    • Provides self-hosted streaming of iOS simulators and Android emulators accessible via browser for mobile QA teams.
    • Keeps all builds, streams, and recordings on your own infrastructure, avoiding third-party cloud uploads and recurring costs.
    • Use for enabling non-developers like product managers and designers to test mobile apps without installing toolchains.
    • Use for running centralized mobile QA sessions with real-time device interaction streamed over LAN or internet securely.
    • Use for integrating simulator control and session screenshots into CI/CD pipelines and AI-agent workflows via REST API.

    Should you depend on it?

    License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.

    License

    MIT

    Permissive: commercial use, modification and redistribution are allowed with attribution.

    Community files

    • README: present
    • Contributing guide: present
    • Code of conduct: present

    Watch-outs

    No watch-outs from GStars' checks.

    General guidance from repository metadata, not legal advice. How we score

    From the README

    A self-hosted Appetize / BrowserStack alternative for mobile QA teams

    No WebDriverAgent  ·  2-line setup  ·  MIT

    Streams over H.264 with a zero-buffer decoder (no MSE) — latency measurements ↗

    v0.x, actively developed — backward-compatible by default; breaking changes are rare and always noted in the changelog. Roadmap →

    Mobile QA usually depends on access to simulators, emulators, or physical devices — and that access is uneven across a team.

    For mobile developers it means opening Xcode or Android Studio on a Mac. For everyone else, it often means asking a mobile developer every single time:

    Backend developer — "How do I install the sandbox build to check what was deployed?"

    Product manager — "I keep installing and removing versions just to compare behavior."

    Designer — "I need to check the layout across screen sizes, but I don't have the right devices."

    Physical devices add their own overhead — OS-version coverage, availability, charging, storage, handoff. Cloud simulator services solve access, but they require uploading internal builds to a third-party service and paying for remote devices while your own Macs can already run the same simulators.

    We hit this exact problem, so we built tapflow.

    Excerpt from the jo-duchan/tapflow README on GitHub (MIT license). © its authors.Read the full README on GitHub

    Compared with peers in Android

    Fastest-growing repositories GStars tracks in this cohort for the week of Nov 1, by 7-day star growth

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    jo-duchan/tapflow1.6K—654 days ago
    Category median23.3K+80545—

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