SurveyNotes

Stop doing grade math in your head. SurveyNotes handles benchmark, backsight, HI, and rod calculations so you can focus on the work.

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.