GNSS Obs - Professional Observation Logs
GNSS Obs is the professional solution for documenting static GNSS observations. Designed for surveyors, geodesists, and geospatial professionals, it eliminates transcription errors and ensures consistent, accurate project documentation.
Replace Paper Logs with Digital Precision
Stop relying on paper forms, fillable PDFs, and handwritten notes. GNSS Obs provides a structured workflow that promotes accuracy and completeness while maintaining the professional standards required for geodetic control projects.
Comprehensive Equipment Management
Build and maintain your equipment library with support for:
• Fixed height, collapsible and adjustable tripods
• Antenna extensions
• Integrated antenna/receiver configurations
• Complete metadata for NGS compliance
Import and export library items to share standardized configurations across your organization.
Direct NGS Database Integration
Access public monument data directly from:
• National Geodetic Survey Integrated Database (IDB)
• OPUS Share Database
• NOAA CO-OPS Stations
Monuments can also be entered manually when working with local control networks.
OPUS Solution Integration
Import OPUS solution emails to automatically populate:
• Observed positions
• Actual observation times
• Session statistics
• Solution quality metrics
Include the complete OPUS solution in your PDF output for comprehensive project records.
Essential Field Tools
• Session timers with local notifications
• Automatic weather recording at session start and end
• Photo documentation with NGS-compliant naming
• Satellite visibility diagrams using device motion sensors
• Real-time editing before, during, and after observations
Professional Documentation
Export publication-ready PDF observation logs featuring:
• Your company logo and branding
• Complete equipment configurations
• Weather conditions
• Site photographs
• Visibility diagrams
• OPUS solutions
Share via Files, email, AirDrop, or messaging.
Note: This app documents observations and does not communicate with GNSS receivers. It is designed as a field companion for recording session metadata and producing professional deliverables.
Privacy First
All data remains on your device. No account required. Full control over exports and backups.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
I love this app!!! It's very user friendly. Helps keep all my records in order. Great for archiving data and will help others down the road, after I’ve retired. This is the best app/log for any static survey.
Minor bug fixes with satellite track display on exported PDF
Version 2.0.3
The developer, John May, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More