AssemblyFlow
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Install AssemblyFlow from the Microsoft Store.

One click from the Store — no SmartScreen warnings, no antivirus quarantines, automatic updates. Free forever for congregations of 50 or fewer; subscribers paste the license blob from their welcome email on first launch.

v1.3.0 · released June 6, 2026

AssemblyFlow for Windows

Worship planner, projection engine, stage display, and web remote — install in one click from the Microsoft Store.

Get it from Microsoft Store
Search "AssemblyFlow" in the Microsoft Store app on Windows, or open the Store link above to install. Signed by Microsoft, updates automatically.
Version1.3.0
ReleasedJune 6, 2026
Download size~140 MB
PlatformWindows 10 / 11 · 64-bit
Published byStraight Truth Press LLC
AssemblyFlow icon
System requirements

Runs on the church laptop you already have.

Operating system

Windows 10 / 11

64-bit. Windows 10 build 17763 (October 2018 Update) or newer; Windows 11 fully supported.

RAM

4 GB minimum

8 GB recommended if you regularly project large sermon PowerPoints.

Disk space

500 MB

For the app itself. Plus room for your song library, theme images, and CCLI logs as they grow.

Displays

2 outputs

One for Projection, one for Stage Display. Both can be the same laptop with HDMI splitters.

Network

LAN only

Internet needed only to fetch ESV / NIV / NASB; everything else is offline.

Optional · NDI SDK

For broadcast

Installed separately if you want NDI output to vMix, OBS-NDI, or hardware switchers. See the help docs.

Installation

From install to first slide in three minutes.

Open the Microsoft Store listing

Click the Store link above, or open the Microsoft Store app on Windows and search for AssemblyFlow. Hit Install — Windows downloads and installs the signed package for you. No SmartScreen warnings, no antivirus prompts.

Launch from the Start menu

Once installed, AssemblyFlow appears in your Start menu. Click it. The 85-song hymnal is unpacked and pre-rendered to PNGs on first launch — this takes about 90 seconds on an SSD. You'll see "85 songs loaded" in the toolbar when it's done.

First-launch dialog: congregation size

AssemblyFlow asks how many members your congregation has. Pick the option that fits:

  • 50 or fewer members — AssemblyFlow is free forever. No license key, no expiration, no nag. Select this and you're done.
  • 51 or more members — paste the license blob from your purchase email (the long string of letters and numbers), click Activate, and you're live. Haven't subscribed yet? Pick a plan and we'll email your license within 24 hours — the app keeps working in the meantime.

macOS & Linux — coming later.

AssemblyFlow currently supports Windows 10 and 11 only. Mac and Linux builds are on the roadmap. If a Mac or Linux build would unblock your church, drop us a line at support@assemblyflow.net — knowing who's waiting helps us prioritize.

Read the docs

Comprehensive help is also built into AssemblyFlow — press F1 anytime after install. Online: getting-started, shortcuts, CCLI, NDI setup.

Open the help docs →

Need a license?

Pick Standard, Church, or Multi-campus. We email your license blob within 24 hours of subscribing.

Subscribe →

Stuck on something?

Real humans, usually replying the same business day. Tell us what version of Windows you're on and what you saw.

support@assemblyflow.net