Benchmark Slope vs SurveyNotes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Benchmark Slope
This app helps employees quickly determine jobsite elevation marks and calculate slopes. It provides target pole-shots based on established instrument height and allows for instant unit conversions between decimal feet, feet and inches, and meters. It aims to reduce errors and save time on construction sites.
- Jobsite elevation mark determination
- Target pole-shot calculation
- Slope calculation function
- Elevation difference, distance, and gradient calculation
- Unit conversion (Decimal Feet, Feet/Inches, Meters)
- Quick rise/fall toggle
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Benchmark Slope is a new application that helps any of your employees determine jobsite elevation marks quickly and accurately. When provided with the intended elevations, Benchmark Slope instantly provides target pole-shots based on your established instrument height. After setting up their Instrument, the user is prompted to first enter the Jobsite Benchmark Elevation, followed by the initial reading on their Graduated Pole at the benchmark. With these two pieces of information, the application calculates the Height of Instrument and opens an interface which allows the user to input various elevation points. With each elevation entered, the application instantly provides the desired Target Pole Shot at that given point. The application also features a Slope Calculation Function that allows users to quickly and accurately calculate difference in elevation, distance apart, and gradient between any two elevation points. The feature allows the user to instantly determine grade-range compliance, pitch, and grade. A Quick toggle allows the user to view rise or fall. Previously a tedious and error-prone process, Benchmark brings speed and accuracy to establishing jobsite elevations and slopes. With this application, virtually any user can quickly determine accurate elevation points in any desired unit of measurement, AND Quick toggles allow users to change desired units of measurement with a mere touch of the button, offering instant conversion between Decimal Feet, Feet and Inches (Imperial), and Meters Conceived and designed by and for contractors like you, Benchmark Slope saves you time and money, expands the skill set of your employee teams, and reduces costly site errors or mistakes— Subscription Information Benchmark Slope requires an auto-renewable subscription to access all features. Monthly Subscription: $9.99/month Yearly Subscription: $99.99/year Free Trial: 1 month for eligible users Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel your subscription anytime in Apple ID Settings. Privacy Policy: https://www.benchmarkslope.com/privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SurveyNotes
This professional tool assists surveyors, engineers, and contractors with precise grade and elevation calculations in the field. It functions as a digital field book, recording instrument setups, benchmark elevations, and foresight shots with timestamps. Export your data as professional PDFs for easy sharing.
- Differential leveling calculations
- Instrument setup in seconds
- Session-based field book recording
- Professional PDF export
- Offline functionality
- Custom measurement keyboard
- Dark mode interface
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SurveyNotes is a professional differential leveling tool built for surveyors, engineers, and contractors who need a reliable field book in their pocket. Set up your instrument in seconds. Enter your benchmark elevation and backsight rod reading and SurveyNotes instantly calculates your Height of Instrument. From there, enter any desired elevation and get the exact rod reading you need to hit grade. FIELD BOOK RECORDING Every shot you record is saved to a session-based field book — organized by instrument setup, exactly the way a real level book works. Each session stores your benchmark, backsight, HI, and every foresight shot with notes and timestamps. PROFESSIONAL PDF EXPORT Export any session as a clean, print-ready PDF formatted like a traditional differential leveling field book. Share it by email or AirDrop directly from the app. BUILT FOR THE FIELD • Works completely offline — no account, no internet required • Dark mode interface easy on the eyes in all lighting conditions • Custom measurement keyboard supporting decimal feet, feet-inches, and fractions to the nearest 1/16" • Sessions are saved automatically and available across app launches SURVEYING TERMINOLOGY SurveyNotes uses standard differential leveling terminology — Benchmark (BM), Backsight (BS), Height of Instrument (HI), and Foresight (FS) — so it fits naturally into any professional workflow. All data is stored locally on your device and never transmitted anywhere.
Screenshots
Verdict
The clearest difference is in-app purchases: SurveyNotes at none against Benchmark Slope's 2. SurveyNotes also leads on ratings volume (3 vs 1). Benchmark Slope's advantage is iOS requirement (16.6 vs 26.2). On price, rating, update cadence and ads 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
Both are free to download. Benchmark Slope sells 2 in-app purchases, starting at $9.99 per month. SurveyNotes asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Benchmark Slope against 5.0 for SurveyNotes. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
Benchmark Slope ships an update every 4 days, SurveyNotes weekly. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.
| Parameter | Benchmark Slope | SurveyNotes |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 4 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 — better | 26.2 |
| Further details — not scored | ||
| Size | 74 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Benchmark Slope | Nicholas VanderKlip |
Customer experience
Benchmark Slope
SurveyNotes
In-app purchases
Benchmark Slope
- Premium Monthly1 Month trial$9.991 Month
- Premium Yearly1 Month trial$99.991 Year
SurveyNotes
No in-app purchases
Questions
Is Benchmark Slope free?
Is SurveyNotes free?
Which has better reviews, Benchmark Slope or SurveyNotes?
Do Benchmark Slope or SurveyNotes have ads?
Which is updated more often, Benchmark Slope or SurveyNotes?
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