Highways & Roadwork Calculator vs Notes Vault
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Highways & Roadwork Calculator
This app provides 37 calculators for civil engineering tasks related to highways and roads. It supports both Imperial (USCS) and Metric (SI) units for various calculations, including curves, grades, and structural elements.
- 37 specialized calculators
- Highway and road engineering
- Imperial (USCS) and Metric (SI) units
- Circular curve calculations
- Parabolic curve calculations
- Structural number calculations
- Pipe and culvert design
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Highway and Road Calculator contains 37 Calculators to calculate different Highway, Road and Civil Engineering parameters. - Available in Imperial (USCS) and Metric Units (SI). App has following list of 37 Calculators: 1. Radius of Curve - Arc Definition (Circular Curves) 2. Radius of Curve - Chord Definition (Circular Curves) 3. Degree of Curve - Arc Definition (Circular Curves) 4. Degree of Curve - Chord Definition (Circular Curves) 5. Tangent Distance (Circular Curves) 6. External Distance (Circular Curves) 7. Midordinate (Circular Curves) 8. Length of Long Chord (Circular Curves) 9. Length of Curve (Circular Curves) 10. Central Angle for Portion of Curve - Arc Definition (Circular Curves) 11. Central Angle for Portion of Curve - Chord Definition (Circular Curves) 12. Tangent Offset (Circular Curves) 13. Chord Offset (Circular Curves) 14. Rate of Change of Grade (Parabolic Curves) 15. Elevation of Point of Vertical Curvature (Parabolic Curves) 16. Elevation of Point x distant from Point of Vertical Curvature (Parabolic Curves) 17. Distance from Point of Vertical Curvature to Lowest Point on a Sag Curve/Highest Point on a Summit Curve (Parabolic Curves) 18. Elevation of Lowest Point on a Sag Curve/Highest Point on a Summit Curve (Parabolic Curves) 19. Minimum Length of Crest Vertical Curves (Sight Distance less than Length of Vertical Curves) 20. Minimum Length of Crest Vertical Curves (Sight Distance greater than Length of Vertical Curves) 21. Rate of Vertical Curvature 22. Structural Number (Surface Course) 23. Structural Number (Base Course) 24. Structural Number (Subbase Course) 25. Structural Number (Pavements) 26. Minimum Length of Spiral Curve 27. Thrust of Structure (Culverts) 28. Flexibility Factor 29. Ring-Compression Stress 30. Horizontal Deflection of Pipe (Iowa Formula) 31. Design Pressure - Corrugated Steel Structures (Height of Cover less than Pipe Diameter) 32. Design Pressure - Corrugated Steel Structures (Height of Cover greater than Pipe Diameter) 33. Compressive Thrust (Conduit Walls) 34. Ultimate Wall Stress (294 greater than Ratio of Pipe Diameter and Radius of Gyration of Pipe Cross Section less than 500) 35. Ultimate Wall Stress (Ratio of Pipe Diameter and Radius of Gyration of Pipe Cross Section greater than 500) 36. Design Stress of Wall 37. Pipe Wall Area
Notes Vault
Securely store and organize your personal notes in a private vault. This application offers a straightforward interface for easy note-taking and quick retrieval.
- Secure note vault
- Easy note storage
- Quick search functionality
- User-friendly interface
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Vault for your Notes. - Secure vault for your eyes and memory only. - Store and search notes easily - Quick search - Easiest to use Notes App on the market
Screenshots
Verdict
The clearest difference is price: Notes Vault at Free against Highways & Roadwork Calculator's $2.99. Notes Vault also leads on rating (5.0 vs 4.0) and update cadence (every 2 months vs every 31 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Notes Vault is free to download; Highways & Roadwork Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Notes Vault holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 5 respectively.
Highways & Roadwork Calculator ships an update every 31 months, Notes Vault every 2 months. The most recent releases landed on October 23, 2026 and October 6, 2026 respectively.
| Parameter | Highways & Roadwork Calculator | Notes Vault |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.0 (4 ratings) | 5.0 (5 ratings) — better |
| Number of ratings | 4 | 5 — better |
| Update frequency | Every 31 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | V PUGAZHENTHI | Praxticus Mobile Labs LLC |
Customer experience
Highways & Roadwork Calculator
Notes Vault
In-app purchases
Highways & Roadwork Calculator
No in-app purchases
Notes Vault
No in-app purchases
Questions
Is Highways & Roadwork Calculator free?
Is Notes Vault free?
Which has better reviews, Highways & Roadwork Calculator or Notes Vault?
Do Highways & Roadwork Calculator or Notes Vault have ads?
Which is updated more often, Highways & Roadwork Calculator or Notes Vault?
Other comparisons
