Geoid Altimeter vs SD Inclinometer

Geoid Altimeter is an elevation tracking tool built for field professionals. It applies high-precision geoid models to your smartphone's GPS ellipsoidal height to display a practical "orthometric height" (elevation above mean sea level). Try all features completely free for the first 30 days. Experience the convenience directly on your smartphone. [ Key Features ] - Orthometric Height (H = h − N): Converts the raw GPS ellipsoidal height using national or global geoid models. - High-Resolution Elevation (DEM): Reads terrain elevation for your current location or any pinned point — no need to physically stand there. - Pin & Address Search: Drop a pin or search an address to check the elevation anywhere on the map. - Favorites & CSV Export: Save sites with custom names and export all values (h, N, H, DEM) as CSV. - Model Comparison: View your local model alongside the global EGM96 reference. - One-Tap Copy, Screenshot Share, Transparent Satellite/OSM Overlay, and Compass. [ Supported High-Precision Regions ] Geoid models (orthometric height correction): Japan (Geoid 2024 / GSI), United States (GEOID18 / NOAA-NGS), Canada (CGG2013a / NRCan), New Zealand (NZGeoid2016 / LINZ), Switzerland (CHGeo2004 / swisstopo). High-resolution elevation (DEM): Japan (GSI, 5 m laser mesh), United States (USGS 3DEP), Switzerland (swisstopo), France (IGN RGE ALTI, 1 m). For every other country and region, the app provides seamless worldwide coverage using the global EGM96 geoid and global terrain-elevation data. [ New in 1.4.0 ] - Works beyond coverage: pre-load the national geoid model around you, and elevations stay on that model when the network goes. - Always says which model answered — the national service live, a value saved nearby, or the global EGM96 standing in. - Stand-still averaging: hold still and get a mean with its spread, instead of a single fix that scatters by metres. - Antenna height: set the pole length or how high you hold the phone, and it is subtracted from every GNSS height. - Height difference and grade (% and 1:n) between two saved points, a one-page PDF elevation record, and NGVD29 readings for US drawings levelled before NAVD88. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Need a fast, accurate digital inclinometer or bubble level? SD Inclinometer turns your iPhone into a precision tilt meter—no extra tools required. Measure pitch, roll, and slope in real time with a large, easy-to-read display. Perfect for construction, carpentry, roof pitch, HVAC, solar panel alignment, shelves, decks, and DIY projects. WHY CHOOSE SD INCLINOMETER • Live angle readout in degrees (pitch & roll) • Slope as percentage (rise/run × 100)—ideal for roofs and ramps • Visual bubble level for quick horizontal alignment • Set any surface as zero reference, or reset to gravity • Audible chime when you hit level or your target zone • Adjustable alert volume (in-app or volume buttons) • Sensor speed & smoothing for stable or fast readings • Works in portrait and landscape PRO FEATURES (optional one-time unlock) • Camera inclinometer—aim, measure, capture & share • 2-point calibration for better accuracy • Gyroscope sensor fusion for steadier readings • Target slope mode with alerts • Measurement log & sharing • Extra alert tones • Ad-free experience Try advanced tools briefly with a rewarded ad, or unlock Pro for life with a single purchase. Built for the field: open the app, place your phone, read the angle instantly. Note: Uses the device motion sensors. For best results, calibrate on a known flat surface and avoid strong vibration while measuring.