Carpenter's Calculator
Carpenter's Calculator is a specialized utility for woodworkers and contractors to perform mixed-number arithmetic with US Customary units on iOS.
The App DNA
What makes this app unique?
The app removes the cognitive friction of manual fraction conversion during construction projects, serving as a dedicated alternative to standard scientific calculators.
For Woodworkers and contractors who require precise US Customary unit arithmetic for construction measurements.
What does it look like?
Key features
Dedicated buttons for 'and' and fraction bars to perform calculations with feet, inches, and fractions.
Evaluates expressions and rounds results to the nearest 32nd of an inch.
Stores the last 20 expressions and results for recall and reuse.
How much does it cost?
Carpenter's Calculator is distributed as a free utility with no visible monetization or in-app purchase gates.
Velocity
Dormant developmentShow more...
Carpenter's Calculator has not received a single update in over three years, with the last release dating back to August 23, 2023. The development activity is non-existent, placing the app firmly in the zombie category. There is no evidence of ongoing maintenance, feature development, or operational support.
Who built it?
User Sentiment
What do users think recently?
Users report: The recent review mood reads thrilled. Users appreciate the absence of advertisements and predatory monetization allows users to focus entirely on calculation tasks and specialized math functions for imperial fractions and trigonometry provide immediate utility for woodworking and workshop projects.
How are ratings & reviews evolving?
What users say, by theme
- The absence of advertisements and predatory monetization allows users to focus entirely on calculation tasks
- Specialized math functions for Imperial fractions and trigonometry provide immediate utility for woodworking and workshop projects
- The straightforward interface and quick tutorial allow users to start calculating without unnecessary distractions or complexity
5 of 5 recent reviews analyzed · limited sample
Read the full review analysisUnlock 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Carpenter's Calculator
How's the Utilities market?
Carpenter's Calculator holds a 5-star rating across 17 reviews, indicating high satisfaction within its specialized utility niche. The lack of updates for 1112 days suggests a stable, maintenance-only position rather than an active growth strategy.
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Key takeaways for Carpenter's Calculator
Where is it heading?
Carpenter's Calculator occupies a stable, niche position where its core utility remains relevant despite the lack of recent updates. The PM should focus on maintaining platform compatibility to ensure this tool remains a reliable, ad-free resource for its core woodworking audience.
- The 37-month development silence suggests the app is in maintenance mode, which limits future feature expansion but maintains current utility.
- High user satisfaction and requests for donation options indicate a loyal, high-intent audience that values the current ad-free, focused design.
The SWOT
- Fraction-rounding logic to the nearest 32nd of an inch simplifies construction workflows.
- Ad-free interface prioritizes core utility over revenue generation.
- Voluntary donation integration could capture revenue from users willing to pay.
Next best moves
Implement voluntary donation link because users explicitly request a way to support the developer → increase sustainability.
+ 1 more prioritized moveThe counter-intuitive read
The lack of monetization is not a weakness but a retention lever…
Read the full takeSince the last report: The app remains in a static, maintenance-only state with no functional or pricing changes. The primary shift is a more precise articulation of the tool's SWOT profile and its core utility for construction measurements.
Bottom line
Carpenter's Calculator provides high utility for its niche, but the three-year development silence creates a long-term risk of platform incompatibility. Implementing a voluntary donation model would allow the developer to sustain the tool without compromising the ad-free experience that users value.
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Access the full report for freeFAQ
Is Carpenter's Calculator free to use?
Does this app work for construction measurements?
Is Carpenter's Calculator still being updated?
Sources
- [1] App Store
Report last updated