Engineering Survey Calculator vs Catenary Cables
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Engineering Survey Calculator
This app provides 33 essential calculators for surveying, measurement, and civil engineering tasks. It supports both Imperial (USCS) and Metric (SI) units, making it a versatile tool for engineers and surveyors on iOS devices.
- 33 specialized calculators
- Surveying and measurement tools
- Civil engineering parameters
- Imperial (USCS) and Metric (SI) units
- Available for iPhone and iPad
Read full descriptionHide full description
The field companion for surveyors and civil engineers — 42 calculators, reference tables, and field tools in USCS and SI units. Engineering Survey Calculator covers the everyday math of land surveying, from tape corrections to vertical curves, with instant results, clearly stated formulas, and one-tap unit switching. CALCULATORS — grouped the way you work • Errors & Precision: standard deviation, probable errors, error of the mean, full observation sets • Taping Corrections: temperature, tension, sag, slope — individually or chained into one corrected length • Leveling: curvature & refraction, reciprocal leveling, relative accuracy orders • Traverse: latitudes & departures, misclosure, precision ratio, Bowditch adjustment, area by coordinates • Curves: horizontal circular curves (T, L, C, M, E, D) and parabolic vertical curves with high/low point • Stadia & Tacheometry, Earthwork volumes, Photogrammetry scales, and angle converters (DMS ⇄ decimal, azimuth ⇄ bearing) AUTO-FILL REFERENCE DATA Tap the magic wand to fill tape constants, instrument constants, camera focal lengths, and accuracy coefficients from built-in reference tables — no more hunting through handbooks. A dedicated Reference tab keeps all tables one tap away, in your chosen unit system. FIELD TOOLS • GPS field points: capture coordinates and elevation, then get distance and elevation difference between points • Clinometer: measure slope angles with your device's sensors • DMS quick-entry keyboard for angle inputs SAVE, ORGANIZE, SHARE Save any calculation to a project, attach field notes and photos, share results, and export a whole project as a PDF report. BUILT FOR THE FIELD • USCS and SI units everywhere, one tap apart • Formulas shown with every result • Favorites and search • Dark mode, iPhone and iPad (side-by-side split view) • Works fully offline • Available in English, German, Spanish, French, Italian, Dutch, Portuguese, and Chinese (Simplified) Questions or suggestions? contact.pugal.apps@gmail.com
Catenary Cables
This app provides a more accurate and efficient method for calculating the sagging of overhead transmission line conductors. It replaces traditional approximate parabolic equations with precise catenary expressions, saving time and improving accuracy.
- Accurate sag calculations
- Precise catenary expressions
- Replaces traditional methods
- Flexible transit setup
- Time-saving efficiency
Read full descriptionHide full description
Catenary Cables revolutionizes the sagging process for overhead transmission line conductors, making it more accurate, precise, and efficient. Traditional methods in the IEEE Guide to the Installation of Overhead Transmission Line Conductors rely on approximate parabolic equations, leading to time-consuming calculations and guaranteed inaccuracies. Catenary Cables, however, leverages the more precise catenary expressions to deliver accurate results right from the start. Experience the benefits of flexible transit setup locations and unmatched sag accuracy while saving countless hours! All Access Membership: • Catenary Cables requires an active subscription to use. • Subscriptions are billed monthly, semi-annually, or yearly depending on the plan selected. By using Catenary Cables, you agree to our Privacy Policy and Terms of Use: • https://www.catenarycables.com/privacypolicy • https://www.catenarycables.com/terms-of-service
Screenshots
Verdict
The clearest difference is price: Catenary Cables at Free against Engineering Survey Calculator's $2.99. Catenary Cables also leads on update cadence (every 2 months vs every 24 months) and ratings volume (6 vs 1). Engineering Survey Calculator's advantage is in-app purchases (none vs 2). On rating, ads, device support and iOS requirement 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
Catenary Cables is free to download; Engineering Survey Calculator costs $2.99 up front. Catenary Cables sells 2 in-app purchases, starting at $59.99 per month. Engineering Survey Calculator asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Engineering Survey Calculator against 5.0 for Catenary Cables. That said, the two scores are not equally well evidenced: Catenary Cables has 6 ratings behind it against 1, so its average is the more settled of the two.
Engineering Survey Calculator ships an update every 24 months, Catenary Cables every 2 months. The most recent releases landed on September 18, 2026 and September 8, 2026 respectively.
| Parameter | Engineering Survey Calculator | Catenary Cables |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (1 ratings) | 5.0 (6 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 24 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid — better | Subscription |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 6 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | V PUGAZHENTHI | Logan Copenhaver |
Customer experience
Engineering Survey Calculator
Catenary Cables
In-app purchases
Engineering Survey Calculator
No in-app purchases
Catenary Cables
- Monthly3 Days trial$59.991 Month
- Yearly$539.991 Year
Questions
Is Engineering Survey Calculator free?
Is Catenary Cables free?
Which has better reviews, Engineering Survey Calculator or Catenary Cables?
Do Engineering Survey Calculator or Catenary Cables have ads?
Which is updated more often, Engineering Survey Calculator or Catenary Cables?
Other comparisons















