Bellows Design Software is a mechanical engineering utility for designing metallic expansion joints on iOS.
The App DNA
What makes this app unique?
Engineers hire this tool to perform EJMA-compliant calculations on-site, replacing manual lookup tables with a portable, standardized digital interface.
For Mechanical and piping engineers designing metallic expansion joints according to EJMA standards.
What does it look like?
Key features
Calculates expansion joint design parameters based on EJMA Standards 10th edition.
Calculates axial and lateral vibration constants and forming methods for creep and non-creep ranges.
Separate modules for tie rods, lugs plates, and hinges.
How much does it cost?
The app is currently offered as a free utility with no visible in-app purchase or subscription gates.
Velocity
Dormant developmentShow more...
5 versions in history. Development pace: zombie.
Who built it?
V PUGAZHENTHI
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What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Bellows Design Software
How's the Utilities market?
The app maintains a 5-star rating on the iOS platform, though its reach is limited by a lack of updates since mid-2023. Its position as a free, specialized utility provides a low-friction entry for engineers, but the absence of recent activity limits its growth in a professional market.
Read the market outlookThe rivals identified
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Key takeaways for Bellows Design Software
Where is it heading?
The market for specialized engineering utilities is stable, but professional users increasingly demand integration with broader design ecosystems. Bellows Design Software remains a functional tool for its specific niche, but its lack of recent updates leaves it exposed to competitors that offer more modern, cloud-connected workflows.
- The lack of updates for over 1,000 days suggests the app is in maintenance mode, which limits its ability to capture new market share.
- The 5-star rating indicates that the core calculation engine meets the needs of its existing, highly specialized user base.
The SWOT
- EJMA 10th edition compliance establishes technical authority
- Specialized modules for tie rods and hinges solve specific engineering pain points
- Cloud-based design syncing for multi-platform workflows
- Exportable PDF reports for professional engineering documentation
Next best moves
Audit EJMA 10th edition compliance against current industry requirements because the app has not been updated in 1,000 days → ensure technical relevance
+ 1 more prioritized moveThe counter-intuitive read
The app's lack of updates is not necessarily a weakness…
Read the full takeSince the last report: The core product remains in maintenance mode, but the intelligence report now provides a more granular assessment of its competitive standing and technical risks.
Bottom line
Bellows Design Software provides a high-utility, specialized tool for piping engineers, but its multi-year update drought threatens its long-term viability, so the developer should prioritize a compatibility audit to ensure the 10th edition calculations remain current with modern industry requirements.
Unlock 2 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
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Report last updated