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AssemblyFlow
assemblyflow.net
What it is
AssemblyFlow plans worship services, projects lyrics and other text onto screens, and provides a stage display through a Windows app. Service orders can be arranged by dragging items, with autosaving, templates, undo, and seven item types. The app includes 85 shape-note hymns and accepts custom lyrics or bulk imports from ChordPro, OnSong, and plain text. Projection supports multiple monitors, themed backgrounds, and standby, blackout, and logo screens; the stage display shows current and next slides, timers, and private notes. Bundled BSV, KJV, and ASV scriptures work offline. ESV and api.bible translations require external API keys and can be cached locally. For streaming, it offers OBS browser-source and WebSocket options, NDI output, and a virtual webcam for apps such as Zoom and Teams. A web remote works on church Wi-Fi and can be installed on iOS or Android. The maker says data remains on the church computer and the app works offline after activation, without cloud sync or telemetry. A free plan covers congregations of 50 or fewer members; paid plans start at $20/mo.
Spec sheet
- What it does
- AssemblyFlow combines worship-service planning, projection, livestream output, and stage display in one Windows application.Read 15 Oct 2026 · assemblyflow.net
- Purpose
- AssemblyFlow plans worship services, projects words on screens, and runs stage display from a Windows app.Read 4 Oct 2026 · assemblyflow.net
- Audience
- The maker says AssemblyFlow was built with a cappella singing in mind and describes tools for local congregations.Read 4 Oct 2026 · assemblyflow.net
- Privacy
- The maker says the desktop app has no telemetry, phone-home behavior, analytics, or transmitted user data.Read 15 Oct 2026 · assemblyflow.net
- Support
- Support is provided by email, with the support page promising replies within two business days.Read 15 Oct 2026 · assemblyflow.net
- Company
- AssemblyFlow is built and maintained by Straight Truth Press, which describes itself as a one-person ministry.Read 4 Oct 2026 · assemblyflow.net
- API caching
- Bible API responses are cached locally so previously fetched verses work offline.Read 15 Oct 2026 · assemblyflow.net
- Bible API limits
- The documented ESV key allows 5,000 verses per day and api.bible Starter allows 5,000 calls per month for non-commercial use.Read 15 Oct 2026 · assemblyflow.net
- Bible translations
- BSV, KJV, and ASV are bundled offline; ESV and api.bible translations require external API keys.Read 15 Oct 2026 · assemblyflow.net
- Broadcast outputs
- The feature list names NDI output for vMix and Wirecast plus a virtual webcam for Zoom and Teams.Read 15 Oct 2026 · assemblyflow.net
- CCLI reporting
- Song projections are logged with CCLI metadata and can be exported as a CSV for reporting periods.Read 15 Oct 2026 · assemblyflow.net
- Company funding
- The maker states that the project has no venture funding and is funded through subscriptions for larger churches.Read 15 Oct 2026 · assemblyflow.net
- Company size
- Straight Truth Press says AssemblyFlow is maintained by a one-person ministry.Read 15 Oct 2026 · assemblyflow.net
- Custom song imports
- Users can create songs or bulk-import TXT, ChordPro, OnSong, Markdown, and related text formats.Read 15 Oct 2026 · assemblyflow.net
- Data storage
- Services, songs, backgrounds, caches, settings, and CCLI logs are stored under the user's Documents/AssemblyFlow folder.Read 15 Oct 2026 · assemblyflow.net
- Hymns and songs
- The app includes 85 shape-note hymns and supports custom lyrics plus bulk import of ChordPro, OnSong, and plain text files.Read 4 Oct 2026 · assemblyflow.net
- Independent catalog availability
- AppAgg records the Windows application as free to obtain.Read 15 Oct 2026 · appagg.com
- Independent catalog company location
- AppAgg describes Straight Truth Press LLC as a Texas-based ministry publisher.Read 15 Oct 2026 · appagg.com
- Independent catalog description
- AppAgg describes AssemblyFlow as worship-presentation software aimed at Churches of Christ and small-to-mid Protestant congregations.Read 15 Oct 2026 · appagg.com
- Independent catalog language
- AppAgg lists English as the supported language.Read 15 Oct 2026 · appagg.com
- Independent catalog platform
- AppAgg lists AssemblyFlow as a Windows productivity application published by Straight Truth Press LLC.Read 15 Oct 2026 · appagg.com
- Independent catalog release date
- AppAgg records the first release as June 10, 2026.Read 15 Oct 2026 · appagg.com
- Independent catalog size
- AppAgg lists the Windows package size as 100 MB.Read 15 Oct 2026 · appagg.com
- Independent catalog update date
- AppAgg records the latest update as August 25, 2026.Read 15 Oct 2026 · appagg.com
- Independent review availability
- AppAgg shows zero user comments and says its users have not rated AssemblyFlow.Read 15 Oct 2026 · appagg.com
- License validation
- Subscription licenses are cryptographically signed and validated offline without contacting a license server.Read 15 Oct 2026 · assemblyflow.net
- Limit: click tracks
- Click-track support is not included in version 1.x and has no promised delivery date.Read 15 Oct 2026 · assemblyflow.net
- Limit: desktop operating systems
- The maker says Mac and Linux desktop versions are not available in the 1.x line; only the browser remote works there.Read 15 Oct 2026 · assemblyflow.net
- Limit: synchronization
- Service data does not sync natively between machines; the maker suggests placing the local data folder on OneDrive, Dropbox, or a file share.Read 15 Oct 2026 · assemblyflow.net
- Livestream integration
- An /obs HTTP endpoint can be added to OBS as a Browser Source, with resolution presets for common streaming outputs.Read 15 Oct 2026 · assemblyflow.net
- Livestream integrations
- The app offers an OBS Browser Source endpoint, OBS WebSocket controls, NDI output, and a virtual webcam for apps including Zoom and Teams.Read 4 Oct 2026 · assemblyflow.net
- OBS control
- AssemblyFlow can connect to OBS over WebSocket to switch scenes, control streaming and recording, adjust audio, and create scenes automatically.Read 15 Oct 2026 · assemblyflow.net
- Offline and data storage
- The maker says service data is stored on the church computer and the app works offline after activation, with no cloud sync or telemetry.Read 4 Oct 2026 · assemblyflow.net
- Offline operation
- The app runs on the church laptop and continues operating offline after activation.Read 15 Oct 2026 · assemblyflow.net
- PowerPoint support
- Dropped PPT or PPTX files are rendered through PowerPoint COM into projection slides.Read 15 Oct 2026 · assemblyflow.net
- Projection
- Projection is borderless and fullscreen with multi-monitor support, themed backgrounds, transitions, standby, blackout, and logo screens.Read 15 Oct 2026 · assemblyflow.net
- Projection and stage display
- Projection supports multiple monitors, themed backgrounds, and standby, blackout, and logo screens; stage display shows current and upcoming slides, timers, and private notes.Read 4 Oct 2026 · assemblyflow.net
- Rating on Windows Store
- 0 out of 5 from 0 ratingsRead 15 Oct 2026 · appagg.com
- Release news
- Version 1.3.0 was released on June 6, 2026 with image items, one-click OBS scene setup, improved phrase highlighting, broader imports, and ZIP distribution.Read 15 Oct 2026 · assemblyflow.net
- Remote control
- A built-in web remote works on the church Wi-Fi, and the page says it can be installed as a PWA on iOS and Android.Read 4 Oct 2026 · assemblyflow.net
- Remote security
- The web remote binds only to LAN addresses, rejects outside-network connections, and does not require port forwarding.Read 15 Oct 2026 · assemblyflow.net
- Scripture
- BSV, KJV, and ASV are bundled for offline use, while ESV and api.bible translations are available through external API keys and cached locally.Read 4 Oct 2026 · assemblyflow.net
- Security and licensing
- The maker says licenses are cryptographically signed and validated offline, and projection is not blocked mid-service if billing fails or a subscription lapses.Read 4 Oct 2026 · assemblyflow.net
- Service item types
- The planner supports songs, scripture, sermon PowerPoint, countdowns, announcements, video, and image items.Read 15 Oct 2026 · assemblyflow.net
- Service planning
- It supports drag-and-drop service orders, autosaving, templates, undo, and seven service item types.Read 4 Oct 2026 · assemblyflow.net
- Song leader mode
- Song leader mode provides a sine-wave starting pitch, hymn-book cross-references, keys, tempos, leader notes, and verse selection.Read 15 Oct 2026 · assemblyflow.net
- Song library
- The installer includes 85 pre-rendered shape-note SATB hymns.Read 15 Oct 2026 · assemblyflow.net
- Stage display
- Stage Display shows the current slide, an upcoming-slide preview, clock, elapsed timer, and private speaker notes.Read 15 Oct 2026 · assemblyflow.net
- System requirement
- PowerPoint must be installed and licensed for PPTX rendering; the free PowerPoint viewer and LibreOffice do not provide the required COM interface.Read 15 Oct 2026 · assemblyflow.net
- Video playback
- Local video files and YouTube URLs can be played, with YouTube downloads handled through yt-dlp.Read 15 Oct 2026 · assemblyflow.net
- Web remote
- A LAN-bound HTTP server on port 8788 provides phone, tablet, and laptop controls and can be installed as a PWA.Read 15 Oct 2026 · assemblyflow.net
Plans and prices
Free Free 50 or fewer members · full app · main worship assembly Read 15 Oct 2026 · assemblyflow.net
Free (50 or fewer members) Free Full app · main worship assembly · one operator · free for congregations of 50 or fewer members Read 4 Oct 2026 · assemblyflow.net
Standard $20 a month $20 / month main worship assembly · sanctuary plus livestream · OBS / YouTube / Zoom · unlimited songs and services · one operator Read 15 Oct 2026 · assemblyflow.net
Church $40 a month $40 / month Bible classes · youth meetings · weddings · funerals · special events · multiple simultaneous operators · web-remote role permissions Read 15 Oct 2026 · assemblyflow.net
Multi-campus $80 a month $80 / month unlimited physical campuses · NDI broadcast across LAN · hardware switcher integration · priority email support Read 15 Oct 2026 · assemblyflow.net
Standard (annual) $200 a year $200/yr — save $40 vs. monthly Main worship assembly · sanctuary and livestream · OBS / YouTube / Zoom integration · unlimited songs and services · one operator at a time Read 4 Oct 2026 · assemblyflow.net
Standard annual $200 a year $200/yr — save $40 vs. monthly main worship assembly · sanctuary plus livestream · OBS / YouTube / Zoom · unlimited songs and services · one operator Read 15 Oct 2026 · assemblyflow.net
Church (annual) $400 a year $400/yr — save $80 vs. monthly Everything in Standard · any room, class, or activity · multiple simultaneous operators · web remote with role permissions Read 4 Oct 2026 · assemblyflow.net
Church annual $400 a year $400/yr — save $80 vs. monthly Bible classes · youth meetings · weddings · funerals · special events · multiple simultaneous operators · web-remote role permissions Read 15 Oct 2026 · assemblyflow.net
Multi-campus (annual) $800 a year $800/yr — save $160 vs. monthly Everything in Church · unlimited physical campuses · NDI broadcast across LAN · hardware switcher integration · priority email support Read 4 Oct 2026 · assemblyflow.net
Multi-campus annual $800 a year $800/yr — save $160 vs. monthly unlimited physical campuses · NDI broadcast across LAN · hardware switcher integration · priority email support Read 15 Oct 2026 · assemblyflow.net
Strong points and limits
Strong points
- Drag-and-drop orders with templates, autosaving, and undo
- 85 included shape-note hymns
- Multiple-monitor projection and stage display
- OBS, NDI, and virtual webcam options
- Church-computer storage and offline operation after activation
Limits
- Free plan limited to congregations of 50 or fewer members
- Paid plans start at $20/mo
- ESV and api.bible require external API keys
- Built and maintained by a one-person ministry
Who it suits
AssemblyFlow is aimed at local congregations, particularly those planning a cappella worship services. Its room, operator, and streaming options may suit churches with different service and campus needs.
AssemblyFlow in depth
Read the full write-up
AssemblyFlow brings worship-service planning, projection, stage display, and streaming output together for congregations, especially a cappella groups. Its local, offline-capable design is a strong fit for churches that want service data kept on church equipment. The main trade-off is that broader room and operator access requires a paid plan.
Overview
AssemblyFlow links service orders with projected content, stage display, and livestream tools in a Windows app, alongside Android, iOS, and web access. Its a cappella emphasis is reflected in a built-in collection of 85 shape-note hymns, but custom lyrics and bulk song imports make it useful beyond that repertoire. Data stays on the church computer, with no cloud sync or telemetry, so this suits local-control preferences better than teams seeking a shared cloud workspace.
The app works offline after activation. The maker says licenses are validated offline and projection will not stop mid-service if billing fails or a subscription lapses—a practical safeguard for live worship. Support is by email; paid plans receive email support within 24 hours.
Key features
Planning and music
Drag-and-drop service orders, templates, autosaving, undo, and seven service item types cover the core planning workflow without prescribing a single service format. The included hymns provide a useful starting point for shape-note congregations; custom lyrics and bulk imports from ChordPro, OnSong, and plain text files help churches bring in their existing songs.
Projection and streaming
Multiple-monitor projection, themed backgrounds, and standby, blackout, and logo screens give operators ways to manage what appears between service elements as well as during them. Stage display puts current and upcoming slides, timers, and private notes in view, a useful separation between what the congregation sees and what the team needs.
OBS Browser Source, OBS WebSocket controls, NDI output, and a virtual webcam connect the presentation workflow to streaming setups, including Zoom and Teams. Scripture includes BSV, KJV, and ASV for offline use; ESV and api.bible translations require external API keys and are cached locally. The built-in web remote works over church Wi-Fi and can be installed as a PWA on iOS and Android, which adds convenient control without making the service data cloud-based.
Reporting and data control
AssemblyFlow logs projected songs and exports date-range CSV reports for CCLI reporting, while keeping usage data local. That is useful for congregations that need reporting without sending usage records to a cloud service.
Pricing
The free plan costs nothing and includes the full app for the main worship assembly with one operator, but is limited to congregations of 50 or fewer members. It is a substantial way for a small church to use the core workflow; the congregation cap and single-operator limit rule it out for larger teams or simultaneous operation.
Standard costs $20 a month or $200 a year. It covers the main worship assembly, sanctuary and livestream, OBS/YouTube/Zoom integration, unlimited songs and services, and one operator at a time. The annual price saves $40 versus monthly billing, but Standard remains a one-operator plan.
Church costs $40 a month or $400 a year, saving $80 annually versus monthly billing. It adds use in any room, class, or activity, multiple simultaneous operators, and a web remote with role permissions. This is the meaningful step up for churches coordinating several spaces or operators.
Multi-campus costs $80 a month or $800 a year, saving $160 annually versus monthly billing. It adds unlimited physical campuses, NDI broadcast across LAN, hardware switcher integration, and priority email support. Choose it when those campus and broadcast capabilities matter; otherwise, Church covers the stated multi-room and concurrent-operator needs at half the monthly price.
Platforms
AssemblyFlow supports Android, iOS, web, and Windows. The Windows app is central to its service-planning and projection purpose, while the web remote and mobile PWA provide church-Wi-Fi control from phones and tablets.
Who it's for
AssemblyFlow is best suited to local congregations that want planning, projection, stage display, and streaming connections in one system, particularly a cappella churches that can use the included shape-note collection. Its offline operation and local storage also suit churches that prefer not to rely on cloud sync. Churches that need simultaneous operators, multiple rooms, or campuses should budget for Church or Multi-campus rather than assume the free plan will scale.
Pros and cons
Pros: Planning, projection, stage display, and streaming integrations share one workflow, reducing the need to assemble separate presentation tools.
Pros: Offline operation and church-computer storage keep service data local, and the maker says projection continues through billing failure or a lapsed subscription.
Pros: Bulk imports, custom lyrics, and 85 bundled shape-note hymns accommodate both the intended a cappella audience and churches with their own song libraries.
Cons: The free plan is limited to congregations of 50 or fewer members and one operator, so it is not a growth path for larger or multi-operator teams.
Cons: Standard still permits only one operator at a time; simultaneous operators and room-level flexibility start at Church, for $40 a month.
Cons: ESV and api.bible scripture use requires external API keys, unlike the three bundled offline translations.
Alternatives
OnStage is worth considering if a free entry plan with up to five members, 200MB of storage, and five events per month better matches a small team's needs, or if MacOS support matters.
WorshipTools Presenter is a better fit for teams seeking cloud storage and support across Linux and macOS; its free plan includes 500 MB, 10 users, and 15 items per service, with unlimited services and songs.
c-SPOT is an option for readers seeking free, open-source software across a broad range of platforms, including self-hosted use.
Planning Center suits churches looking for a broader suite of free tools, including a calendar with one room and unlimited database and reporting through People.
Ministry Planner may suit churches that want web-based free tools, including scheduling for one team and up to 1,000 volunteers.
WorshipTeam.com is a paid alternative for teams that prefer a five-user group subscription at $14 a month.
Planning is another paid option, with a Solo plan at $15 a month that includes unlimited helper accounts, teams, services, and file storage.
ServeFlow: Worship Planner is a free iOS and macOS alternative.
For more options, see Worship Planning Software.
Verdict
AssemblyFlow is a strong choice for a congregation that wants locally stored, offline-capable service planning tied directly to projection, stage display, and livestream output. Its integrated workflow and live-service continuity are compelling reasons to choose it. Look elsewhere if your team depends on cloud synchronization, or if you need multiple operators without paying for Church or Multi-campus.
Verdict
AssemblyFlow combines service planning, projection, stage display, and streaming tools, with offline operation and local data storage. The free plan has a congregation-size limit, and the paid plans add room, operator, and campus options.
Where Specifiction places it
- Worship Planning Software#1 of 249.4
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