By John Lein
Report updated May 4, 2026
Slope Calculator
For surveyors, civil engineers, and construction contractors requiring field-ready grading and site analysis tools.
Overview Β· Full Intel report in progress
Slope Calculator is an established productivity app that is a paid app. With a 5.0/5 rating from 1 reviews, it shows polarized user reception.
What is Slope Calculator?
Current Momentum
v5.0 Β· 3mo ago
SteadyLast updated 109d ago. 5 versions tracked.
Competition
Rivals identification in progress
7-Day Rank Pulse πΊπΈ
ProductivityRating Pulse πΊπΈ
What makes this app unique?
What Does It Look Like?
How Is The App's Momentum Right Now?
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What Are The Key Features?
Calculates elevation difference, decimal slope, and percentage slope based on two elevation points and horizontal distance.
Determines elevation change and true elevations for drainage and ramp planning using slope percentage and horizontal distance.
Computes horizontal distance requirements based on defined slope percentages and elevation changes.
How much does it cost?
Who Built It?
John Lein
Streamlining landscape design and construction workflows with specialized estimation and measurement tools. Empowering field professionals to digitize project management and site analysis.
Portfolio
13
Apps
Who is John Lein?
John Lein operates as a specialized developer focusing on the intersection of landscape architecture and field service management. By building niche productivity tools that leverage native device sensors, the publisher has carved out a functional moat in the professional landscaping sector that generalist utility apps struggle to replicate. The portfolio demonstrates a clear pivot toward integrating modern iOS frameworks like SwiftData and CloudKit to solve specific pain points for contractors, moving beyond simple calculators into project management.
Who is John Lein for?
- Professional landscape contractors
- Garden designers
- Field service managers requiring precise site measurement
- Estimation
Portfolio momentum
Released 23 updates across the portfolio in the last 6 months, with the most recent major release occurring 3 days ago, indicating a highly active development cycle.
What other apps does John Lein make?
Analysis in progress, available soon
What do users think recently?
Analysis in progress, available soon
Analysis in progress, available soon
What is the competitive landscape for Slope Calculator?
How's The Productivity Market?
How does it evolve in the Productivity market?
| Chart | Rank | Change |
|---|---|---|
| Paid | #51 | NEW |
Strategic analysis coming soon
SWOT, key takeaways & outlook
The outtake for Slope Calculator
Key Takeaways
This is a specialized, paid productivity tool optimized for field professionals needing fast, accurate geometric calculations for construction and site planning.
Where Is It Heading?
Trend analysis
Available very soon