AssemblyFlow

AssemblyFlow plans worship services, projects words on screens, and runs stage display from a Windows app. Built with a cappella singing in mind, it offers drag-and-drop service orders, autosaving, templates, undo, and seven service item types. It includes 85 shape-note hymns and accepts custom lyrics and bulk imports from ChordPro, OnSong, and plain text files. Projection can use multiple monitors and themed backgrounds; stage display shows current and upcoming slides, timers, and private notes. BSV, KJV, and ASV scriptures are available offline, while ESV and api.bible translations require external API keys and are cached locally. Livestream options include OBS Browser Source, OBS WebSocket controls, NDI output, and a virtual webcam for Zoom and Teams. A web remote works on church Wi-Fi and can be installed as a PWA on iOS and Android. Service data stays on the church computer, and the app works offline after activation without cloud sync or telemetry. The free plan is for congregations of 50 or fewer members; paid plans start at $20/mo.

AssemblyFlow brings service planning, projection, stage display, and livestream options into a Windows app. Check the scripture API-key requirement and the free plan's congregation-size limit when considering it.

AssemblyFlow is aimed at local congregations, particularly those planning a cappella worship services. It may suit teams needing projection, stage display, livestream tools, or a church Wi-Fi remote.

AssemblyFlow is a Windows-based worship planning and presentation app for congregations, especially those focused on a cappella singing. It combines service planning, projection, stage display, and livestream connections; its local-first design suits churches that want their service data kept on church equipment.

The main trade-off is operational scale: the free plan is restricted to congregations of 50 or fewer members and one operator, while multi-room and multi-campus use requires a paid tier.

Overview

AssemblyFlow brings the service order, projected content, stage display, and livestream tools into one application. Its offline operation after activation and local storage can appeal to churches that do not want service data dependent on cloud sync. That same design is less suited to teams looking for a shared cloud workspace.

The maker says projection continues uninterrupted during a service if billing fails or a subscription lapses, and licenses are validated offline. Those are practical protections for software used in a live service. Support is by email; paid plans include email support within 24 hours.

Key features

Planning and music

Drag-and-drop service orders, templates, autosaving, undo, and seven service item types cover common planning needs while leaving room for different service formats. The 85 included shape-note hymns serve the app’s a cappella focus. Custom lyrics and bulk imports from ChordPro, OnSong, and plain text files make it more useful to congregations with their own song libraries.

Projection, stage display, and streaming

Multiple-monitor projection, themed backgrounds, and standby, blackout, and logo screens give operators control over what appears between or during slides. Stage display can show current and upcoming slides, timers, and private notes, helping presenters keep track of what the audience does not see. OBS Browser Source, OBS WebSocket controls, NDI output, and a virtual webcam for apps such as Zoom and Teams provide several routes into livestream setups.

Scripture and remote control

BSV, KJV, and ASV are bundled for offline use. ESV and api.bible translations require external API keys, so churches relying on those translations should account for setup beyond installing the app. A web remote works on church Wi-Fi and can be installed as a PWA on iOS and Android, giving operators a mobile control option without changing the local data model.

Reporting and data

AssemblyFlow logs projected songs and exports date-range CSV reports for CCLI reporting, with usage data kept locally. The maker says service data is stored on the church computer and that the app has no cloud sync or telemetry. This favors local control, but is not a fit for congregations that need cloud-based sharing of service data.

Pricing

The free plan costs nothing and includes the full app for the main worship assembly with one operator, for congregations of 50 or fewer members. It is a useful way for a small church to use the core app, but the member cap and single-operator limit rule it out for larger congregations and concurrent teams.

Standard costs $20 a month, or $200 a year billed $200/yr — save $40 vs. monthly. It covers the main worship assembly, sanctuary and livestream, OBS / YouTube / Zoom integration, unlimited songs and services, and one operator at a time. This is the practical upgrade for churches that exceed the free-plan member limit or need livestream use, but it does not add concurrent operators or access for other rooms and activities.

Church costs $40 a month, or $400 a year billed $400/yr — save $80 vs. monthly. It adds any room, class, or activity, multiple simultaneous operators, and web remote with role permissions. Choose it when several people or ministry spaces need to work at once; the additional scope is unnecessary for a single-operator main-assembly setup.

Multi-campus costs $80 a month, or $800 a year billed $800/yr — save $160 vs. monthly. It adds unlimited physical campuses, NDI broadcast across LAN, hardware switcher integration, and priority email support. It is aimed at organizations with multi-campus production needs, rather than a single-site church that can use Church.

Platforms

AssemblyFlow is available for Android, iOS, web, and Windows. The core app is described as a Windows app, while the mobile and web options support remote access. Its offline operation after activation can suit a church computer used for services, but the setup is not positioned as a cloud-synced team tool.

Who it's for

AssemblyFlow is best for local congregations that want service planning, projection, stage display, and livestream connectivity together, particularly a cappella groups that can use its shape-note collection. It is also a sensible candidate for churches that prefer local data storage and offline operation. Churches needing shared cloud planning, more than one operator on the free plan, or support for multiple rooms should weigh the paid tiers or compare other options.

Pros and cons

• Integrated service workflow: Planning, projection, stage display, and livestream outputs sit within one app, reducing the need to assemble separate tools for those tasks.
• Useful local safeguards: Local storage, offline operation after activation, and continued projection through a billing lapse suit live-service reliability and data-control priorities.
• Song flexibility: Shape-note hymns, custom lyrics, and bulk imports accommodate both the intended a cappella use and outside song collections.
• Free plan has a narrow ceiling: The 50-member maximum and one-operator restriction make it unsuitable for larger congregations or teams working concurrently.
• Scripture setup can require extra work: ESV and api.bible translations depend on external API keys, unlike the bundled offline translations.
• No cloud sync: Churches wanting shared cloud access to service data may prefer a different workflow.

Alternatives

For a broader comparison, browse Worship Planning Software. OnStage is worth considering if a small team values its free Starter plan’s five-member, five-events-per-month limits, reminders, chat, annotations, and PDF song import. WorshipTools Presenter is an alternative for teams that want a free plan with 500 MB cloud storage, 10 users, and 15 items per service, alongside support for Windows, Linux, and macOS.

Planning Center offers free Calendar and People plans and may suit churches looking for those specific tools; its free Services plan covers five team members. ServeFlow: Worship Planner is a free iPhone and iPad option for churches seeking an iOS- and macOS-based alternative. c-SPOT is a free, open-source choice for readers who want a broad set of platform options, including self-hosting.

WorshipTeam.com is a paid alternative with a 5-user group subscription at $14 a month, for teams comparing a lower stated entry price. Ministry Order is another paid option. Planning may suit a solo planner who wants unlimited helper accounts, teams, services, and file storage for $15 a month.

Verdict

Choose AssemblyFlow if your congregation wants an offline-capable, locally stored worship workflow that connects planning, projection, stage display, and livestream production, especially for a cappella services. Look elsewhere if cloud sync is essential or if the free plan’s size and operator caps do not fit; larger teams should budget for Church or Multi-campus rather than treating the free tier as a full-scale option.