CoilCalc
CoilCalc is a technical calculator for coil geometry and wire parameters, designed for engineering and educational use on iOS.
The App DNA
What makes this app unique?
The app removes the connectivity dependency of web-based calculators, allowing engineers to perform precise calculations in remote or workshop environments without internet access.
For Engineers, students, and technical hobbyists working on coil geometry and electrical projects.
What does it look like?
Key features
Calculates resistance, current, power, and length based on material, wire gauge, and wrap count.
Processes all calculations locally without requiring an account or internet connection, removing connectivity dependency for field engineering tasks.
Supports single, dual, and quad coil setups for technical projects.
How much does it cost?
CoilCalc is distributed as a free utility with no observable monetization, subscription, or ad-based gates.
Velocity
Dormant developmentopaqueShow more...
CoilCalc has remained inactive for 319 days, with only a single version released since its store debut. There is no evidence of ongoing development, feature updates, or maintenance cycles. The lack of activity over the past ten months indicates the project is currently in a zombie state.
Who built it?
User Sentiment
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 CoilCalc
How's the Productivity market?
CoilCalc operates as a specialized Productivity utility with no current chart presence. Its value rests on a clean, offline-first interface that avoids the monetization friction of ad-heavy rivals.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for CoilCalc
Where is it heading?
The technical calculator market is consolidating around tools that offer frequent formula updates and cloud-sync capabilities. CoilCalc's offline-first stance is an advantage, but without a renewed release cadence, it will likely lose its position to more active competitors.
- The 10-month development silence suggests the app is in maintenance mode, which risks losing relevance to active, web-based formula calculators.
The SWOT
- Offline-first architecture removes connectivity dependency for field engineering tasks
- Localized German support targets untapped European technical hobbyist segments
Next best moves
Ship a minor feature update because the 10-month silence signals abandonment → restore user confidence
The counter-intuitive read
The lack of monetization is not a weakness…
Read the full takeBottom line
CoilCalc provides a reliable, offline-first technical utility, but the 10-month development silence risks obsolescence against frequently updated web-based alternatives. Prioritizing a feature-update cycle would validate the app's utility to the engineering community.
Unlock 1 critical friction, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Is CoilCalc free to use?
Does CoilCalc require an internet connection?
What coil configurations does CoilCalc support?
Sources
- [1] App Store
Report last updated