GNSS Log App vs LiteSurvey Pro

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/

LiteSurvey Pro: Professional GNSS Surveying on iPhone and iPad LiteSurvey Pro is a field data collection app designed for use with compatible LiteSurvey GNSS receivers. It combines real-time RTK positioning, map-based GIS data capture, advanced measurement tools, and project management in a clean, modern interface optimized for iPhone and iPad. KEY FEATURES RTK GNSS POSITIONING Connect a compatible LiteSurvey GNSS receiver through supported MFi connectivity. Configure NTRIP correction services, monitor positioning solution and correction status, and support centimeter-level RTK workflows under suitable conditions. Accuracy depends on receiver hardware, correction data, satellite visibility, and the operating environment. MAP-BASED DATA COLLECTION Create and edit points, polylines, and polygons. Organize work in layers and use customizable attributes, notes, and photo attachments to build structured field datasets. ADVANCED MEASUREMENT On supported receiver models, use tilt compensation and laser ranging to capture points efficiently, including targets that are difficult to reach. Availability depends on the connected receiver and its capabilities. AR-ASSISTED PHOTO MEASUREMENT On compatible LiDAR-equipped iPhone or iPad models, connect a supported LiteSurvey GNSS receiver and use the required mounting hardware to perform AR-assisted photo measurements. Availability depends on the Apple device, receiver model, and accessories. COORDINATE SYSTEMS Use broad EPSG-based coordinate-system and transformation support for field projects, including supported geoid models, coordinate display formats, and measurement units. RECORDING AND EXPORT Export layer data as CSV and recorded tracks as GPX or KML. Record RTCM3 data and convert supported recordings to RINEX observation and navigation files for post-processing workflows. PROJECT MANAGEMENT Manage projects, layers, attributes, photos, tracks, and receiver files. Review collected features and share or export selected data when needed. HARDWARE AND COMPATIBILITY Some functions require a compatible LiteSurvey GNSS receiver, supported receiver capabilities, a LiDAR-equipped Apple device, or a dedicated mount. Feature availability varies by device and hardware. LiteSurvey Pro helps field professionals collect and manage precise GNSS and GIS data with a streamlined iPhone and iPad workflow.