Elevation Survey vs Terramark

Make leveling surveys smarter at any construction site. With the Elevation Survey app, you no longer need a field notebook, calculator, or pencil. Just enter the staff readings and the app instantly performs all the calculations, helping you complete surveying tasks efficiently and smoothly. Results are saved within the app and can be exported as CSV files or images. Share data instantly with colleagues using various methods for fast on-site delivery. The app supports the Instrument Height (HI) method, with a built-in tutorial that explains both app usage and surveying basics for beginners. 【Key Features】 • Automatically calculate Instrument Height (HI) and Ground Height (GH) from the benchmark elevation and staff readings • Enter design elevation to instantly compute the staff readings needed for batter board (layout) work • Add or delete rows freely • Color-coded display for input values and calculation results, improving readability • Add memos for each project or site • Export survey data as CSV, editable in Excel • Switch between Standard Mode and Staff Mode • Staff Mode allows intuitive entry, just like reading the staff directly through the level • Duplicate, delete, or edit past survey data • Built-in "How to Use" guide explains app operations, the HI method, and basic surveying for beginners • Cloud backup protects your valuable data — recover anytime from the cloud, even if your device is lost or damaged. Share data with various methods. • Multi-language support — available in 40+ languages • Convert recorded data between meters, feet & inches, and decimal feet • Data input units: meters, feet & inches, or decimal feet • 10-day free trial. After that, free for one project. Unlock all limits with a monthly or yearly subscription • Cancel your subscription anytime — use with peace of mind • Subscribers get unlimited project registration and unlimited data sharing Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Terramark is the field documentation tool for professionals: electric, water and telecom distribution crews, surveyors, construction engineers and inspectors. Capture photos stamped with everything a site record needs — coordinates, date/time, address, altitude, GPS accuracy and compass heading — and export your work in the formats your office already uses. **No ads. No account. Your photos, coordinates and projects never leave your device.** CAPTURE - Photo stamps: coordinates (Decimal, DMS, UTM, MGRS), date/time, address, altitude, GPS accuracy (±m), compass azimuth, project name - One-tap waypoints — record poles, valves, boundary corners without a photo - Works fully offline; addresses resolve automatically when you're back online - Correct photo orientation even with the device rotation locked - GPS EXIF embedded in every photo ORGANIZE - Projects with record lists and a map view of every pin - Notes and categories on any record, added or edited anytime EXPORT (Pro) - KMZ for Google Earth — photos embedded in placemark balloons - CSV and GeoJSON with UTM zone + EPSG codes for QGIS/ArcGIS - PDF field reports: cover page, photo pages, summary table - Batch ZIP sharing via AirDrop, email, WhatsApp or Files TERRAMARK PRO Free: 2 projects, 20 records each — enough to try it on a real job. Pro unlocks unlimited projects and records, all exports, PDF reports, UTM/MGRS formats and raw+stamped dual save. 14-day free trial. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/