212+ iOS apps curated and reviewed
If you already know LSPIV, this is the deeper bench. 212+ lspiv apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of May 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (1) | No | No | May 2026 |
| 2 |  | Free | 4.7★ (11K) | Yes | Yes | Jul 2026 |
| 3 |  | Free | 4.8★ (4.5K) | No | Yes | Jul 2026 |
| 4 |  | Free | 4.8★ (22K) | Yes | Yes | Jul 2026 |
| 5 |  | Free | 4.8★ (7.1K) | No | No | Jul 2026 |
| 6 |  | Free | 4.3★ (35) | No | No | May 2026 |
| 7 |  | Free | 2.8★ (202) | No | No | Jul 2026 |
| 8 |  | Free | 1.7★ (612) | Yes | No | Jul 2026 |
This application enables large-scale particle image velocimetry (LSPIV) using a smartphone. It offers a non-intrusive method for measuring water surface velocity distribution in both field and lab settings. The app provides instant ortho-rectification of captured images without needing ground control points.
Monitor river levels, flow rates, and flood warnings with real-time data and forecasts. Get custom alerts for your favorite waterways and visualize trends with interactive graphs. Essential for anyone living, working, or recreating near water.
Access real-time water levels, flows, and temperatures for rivers worldwide. Ideal for sports enthusiasts and professionals, it offers detailed maps, navigability information, and customizable alerts for over 40,000 hydrometric stations.
This app provides highly localized weather forecasts, including detailed information on wind, rain, tides, and UV index. It processes and refines global weather data to offer precise predictions for thousands of specific locations across the US. Users can access interactive radar, satellite views, and real-time observational data.
Plan and navigate off-grid adventures with detailed offline maps and real-time weather forecasts. Trusted by professionals, this app offers seamless syncing and collaborative planning for backcountry pursuits.
This app enables rapid collection of field observations, allowing users to record GIS points and attributes efficiently. It's designed for collecting data quickly from a moving vehicle or during surveys.
Capture precise, location-aware data in the field using smart forms, even offline. Seamlessly sync collected information with your ArcGIS platform for real-time analysis and decision-making. Ideal for public feedback, inspections, and documenting field conditions.
Access real-time traffic conditions, road hazards, and weather information for Utah roadways. View interactive maps, camera feeds, and electronic sign messages to plan your travel.
Track your performance across over 30 water sports, including sailing, wingfoiling, and kayaking. Analyze speed, distance, wind, and more to understand your progress and improve your skills. Plan your sessions with integrated forecasts and stay safe with live tracking.
Collect, visualize, and analyze real-time sensor data for STEM education. Wirelessly connect sensors, capture images for analysis, and build custom displays. Share live data and create electronic lab journals for collaborative learning.
Analyze sports performance with real-time video instruction and slow-motion playback. Capture perfect action shots, draw on videos, and share HD clips instantly. Designed for coaches and athletes to improve skills faster.
Contribute to real scientific research by making environmental observations. Document clouds, mosquito habitats, land cover, and trees using your mobile device. Your data supports scientists worldwide, including NASA and NOAA.
Access real-time USGS and AHPS river level and flow data. Receive push notifications for flood status and view weather prediction charts for significant river flood outlooks and precipitation forecasts.
Access real-time satellite data and imagery on demand. Task satellites, retrieve archived images, and receive automated geospatial analysis for various applications like agriculture, environmental monitoring, and urban planning. Get the data you need quickly without contracts.
Simulate fluid dynamics on your mobile device. Draw obstacles and observe how fluids flow around them. Experiment with various shapes, sizes, and visualization modes to understand aerodynamic principles.
Monitor real-time river and flood data across the United States. Track river height, discharge, precipitation, and water temperature with data from USGS and NWS. Ideal for property owners, outdoor enthusiasts, and anyone needing flood awareness.
Capture photos with essential field data like location, address, and custom notes directly on the image. Annotate, organize, and share your visual records with advanced search and reporting features. Import existing photos to add location and notes.
This app allows men to discreetly measure their urine flow at home using their smartphone. It provides objective data and insights to help users understand their urinary health and prepare for conversations with their doctor.
Easily connect to water monitoring instruments to view, manage, and share water quality and quantity data. Configure, calibrate, and deploy instruments, view live readings, and set up logs. Securely store and share data through a cloud-based account.
This platform offers advanced tools for agricultural operations, providing remote monitoring, control, and detailed analytics for irrigation equipment. It features enhanced mapping, intelligent reporting, and real-time data visualization to optimize water management and identify potential issues.