FieldFab is an open-source HVAC ductwork design tool for iOS that uses augmented reality to visualize transitions in the field.
The App DNA
What makes this app unique?
It replaces manual measurement and physical prototyping, removing the time cost of repeated trips to the supply van for retrofitters.
For HVAC installers and retrofitters who need to design and visualize ductwork transitions while working in the field.
What does it look like?
Key features
Projects 3D models of ductwork transitions into the physical environment.
Calculates transition dimensions based on seven user-provided input variables.
Generates shareable links for viewing designs without file attachments.
How much does it cost?
FieldFab operates as a free, open-source tool with no current monetization, serving as a portfolio piece for the developer.
Velocity
Dormant developmentUX improvementsnew contentShow more...
FieldFab has been inactive for 535 days, placing it firmly in the zombie category. The most recent update introduced significant structural changes, including hierarchical navigation and a pressure drop calculator, but no development activity has been recorded since. There is no evidence of ongoing support or feature iteration.
Who built it?
User Sentiment
What do users think recently?
The recent review mood reads mixed. Users appreciate industry professionals value the tool as a way to avoid costly material mistakes during mechanical room planning.
How are ratings & reviews evolving?
What users say, by theme
- Industry professionals value the tool as a way to avoid costly material mistakes during mechanical room planning
- Users struggle to adjust measurements because the interface requires precise finger sliding rather than direct numerical input
8 of 8 recent reviews analyzed · limited sample · Mixed overall
Read the full review analysisUnlock 1 more frustration theme and 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for FieldFab
How's the Graphics & Design market?
FieldFab occupies a niche utility space within Graphics & Design, maintaining a 4.49 rating across 78 total ratings. The lack of updates for 535 days signals a maintenance-only posture that limits competitive growth against more active field-tools.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for FieldFab
Where is it heading?
FieldFab is currently stagnant, with no feature updates in over a year. Without a commitment to address the interface and tracking issues, the app will likely lose its relevance as professional users migrate to more reliable, actively supported field-design tools.
- The 17-month update gap suggests the project is in maintenance mode, which erodes user trust as iOS system requirements evolve.
- Unintuitive input controls drive negative sentiment, which limits the app's utility for professionals who require speed and precision in the field.
The SWOT
- Open-source distribution on GitHub lowers entry barriers for independent contractors.
- Augmented reality visualization provides a tangible workflow advantage over traditional tape-measure methods.
- Instructional video content could address the high volume of user requests for guidance on basic tasks.
Next best moves
Implement direct numerical input fields because finger-sliding controls are the top usability complaint → increase measurement accuracy.
+ 1 more prioritized moveThe counter-intuitive read
The lack of monetization is FieldFab's biggest retention risk…
Read the full takeSince the last report: FieldFab remains in a maintenance-only state with no feature or pricing changes, though the outlook has shifted to a declining trend due to the persistent 17-month development gap.
Bottom line
FieldFab provides a unique augmented reality utility for HVAC retrofitters, but the lack of development for 17 months leaves the app vulnerable to abandonment. Addressing the input-control friction would unlock the tool's value for field professionals who currently struggle with the interface.
Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.
Access the full report for freeFAQ
Is FieldFab suitable for professional HVAC installation?
Does FieldFab work offline?
Are there alternatives to FieldFab for ductwork design?
Sources
- [1] App Store, source
Report last updated