# SancRadar: WiFi, dB & EMF Tool — Speed, Noise, Pressure & EMF > Speed, Noise, Pressure & EMF (iPhone/iPad app by HIROMU TAMAI.) - Source: https://appshunter.io/ios/app/sancradar-wifi-db-and-emf-tool/id6758563377 (this page in markdown: same URL + `.md`) - Developer: [HIROMU TAMAI](https://appshunter.io/developer/1868270692) - Category: Lifestyle, Productivity - Price: Free - Age rating: 4+ - Requires: iOS 16.0 · 24 MB - Languages: American English - Released: 2026-02-01 - Data updated: 2026-07-09 - User reviews in markdown: https://appshunter.io/ios/app/sancradar-wifi-db-and-emf-tool/id6758563377/reviews.md ## What is SancRadar? [Visualize the Invisible Stress in Your Environment] Sanc-Radar is a next-generation environmental diagnostic tool that instantly scans your surroundings and visualizes the "Comfort Score" of your location. It quantifies five invisible factors—Internet quality, noise levels, barometric pressure, and magnetic interference—into an intuitive radar chart. ■ Key Features of Sanc-Radar 1. Offline-First & Serverless (Privacy Focused) Sanc-Radar processes all data locally on your device. We do not send your personal data to any external servers. Even when measuring noise levels via the microphone, no audio is recorded or saved—only the decibel value is analyzed in real-time. Your privacy is our top priority. 2. Comprehensive 5-Sensor Analysis The app aggregates the following five metrics to calculate a total comfort score out of 100: * Throughput (Speed): Measures actual download speed using a logarithmic scale to reflect real-world user experience (e.g., video streaming quality). * Latency (Ping): Measures server response time in milliseconds. Essential for checking lag in online gaming and video calls. * Noise Level (dB): Analyzes ambient sound. Useful for finding a quiet place to focus or checking sound insulation. * Air Pressure (hPa): Monitors barometric pressure using the built-in sensor. Helps detect approaching low-pressure systems that may affect your health (e.g., headaches). * Magnetic Field (μT): Detects magnetic interference from electronic devices, helping you identify environmental noise. 3. Real-Time Dynamic Scan (Pro Mode) Unlock "Pro Mode" to track environmental changes in real-time as you move. Perfect for finding the strongest Wi-Fi spot in a room or the quietest seat in a cafe. (Available for free via rewarded ads). ■ Recommended For: * Digital nomads looking for the best seat with fast Wi-Fi and low noise in cafes or coworking spaces. * Checking the soundproofing and connectivity of a new apartment or hotel room. * Monitoring barometric pressure changes for health management. * Finding the optimal location for your Wi-Fi router at home. Secure, fast, and completely private. Discover your perfect environment with Sanc-Radar. ## Version history (last 4 releases) ### 2.1.4 — 2026-02-18 Fixed minor bugs. ### 2.0.4 — 2026-02-08 Major update for environmental diagnostics! • Weather, Temperature & Humidity Added We've integrated local weather data. Now you can capture "Temperature," "Humidity," and "Weather Conditions" alongside network and sensor data. Visualize your comfort level with greater precision. • Pro Mode Extended to 60 Seconds Based on user feedback, the Real-Time Analysis (Pro Mode) duration has been extended from 20 seconds to 60 seconds. This gives you more time to walk around and pinpoint Wi-Fi dead zones or magnetic interference sources. • Performance Improvements Optimized the network speed test algorithm for more stable and accurate measurements. ----- 【App Description】 "Is this space actually comfortable?" Visualize the invisible. Completely Free. Privacy-First. Sanc-Radar is an advanced environmental scanner that turns your smartphone into a multi-sensor diagnostic tool. Instantly analyze Wi-Fi speed, ambient noise, electromagnetic fields (EMF), atmospheric pressure, and weather conditions. Designed with a "Serverless" architecture, we prioritize your privacy. No audio recordings or personal measurement logs are ever sent to external servers. What happens on your device, stays on your device. 【Key Features - Analyze 7 Environmental Factors】 1. Internet Speed (Throughput & Latency) Goes beyond simple signal bars. Sanc-Radar measures actual "Effective Throughput (Mbps)" and "Latency (Ping/ms)" by running a real data test. Perfect for checking if a café is good for video calls or gaming. 2. Ambient Noise (dB) Uses the microphone to measure noise levels in decibels. Determine if a room is as quiet as a library or as loud as a construction site. *Audio data is analyzed in real-time and immediately discarded. It is never recorded or saved.* 3. Magnetic Field (EMF / μT) Detects electromagnetic interference using the built-in magnetometer. Useful for identifying strong magnetic sources near your bed or workspace. 4. Atmospheric Pressure (hPa) Monitors barometric pressure. sudden drops in pressure can trigger headaches (meteoropathy). Use this to track pressure changes relative to your health. 5. Weather Context (Temp / Humidity) 【NEW】 Automatically fetches local temperature and humidity data. Essential for verifying if a room is too humid or uncomfortable. 【Usage Scenarios】 • House Hunting & Moving Don't just look at the room—scan it. Is the signal strong? Is the street noise audible? Is there magnetic interference? Check for hidden flaws in seconds before you sign the lease. • Remote Work & Digital Nomads Instantly verify if a coworking space or café has the speed and quietness you need for productivity. • Health & Wellness Track atmospheric pressure changes to understand their impact on your headaches or mood. 【Pro Mode (Real-Time Analysis)】 Unlock "Pro Mode" for free by watching a short ad. Pro Mode provides 60 seconds of real-time, dynamic graph updates. Walk around a room to find the exact spot with the best Wi-Fi signal or to locate the source of EMF noise. 【Privacy Policy】 We believe in complete transparency. • No audio recording. • No data harvesting. • All history is stored locally on your device (SQLite). Download Sanc-Radar today and visualize the invisible comfort of your surroundings. ### 1.0.1 — 2026-02-07 I've updated the screenshots. ### 1.0 — 2026-02-02 No release notes. ## More apps by HIROMU TAMAI - [Quicrop: Mockup & Editor](https://appshunter.io/ios/app/quicrop-mockup-and-editor/id6758023382) - [SoleWeather: Road & Shoe Guide](https://appshunter.io/ios/app/soleweather-road-and-shoe-guide/id6759080993) - [TaskCanvas: TODO & Tasks](https://appshunter.io/ios/app/taskcanvas-todo-and-tasks/id6759699502) - [PocketCanvas: 10-Sec Drawing](https://appshunter.io/ios/app/pocketcanvas-10-sec-drawing/id6766679391) All apps by HIROMU TAMAI: https://appshunter.io/developer/1868270692 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-09.*