# E.C.H.O. Field Companion > E.C.H.O. Field Companion (iPhone/iPad app by My Apps.) - Source: https://appshunter.io/ios/app/echo-field-companion/id6794709540 (this page in markdown: same URL + `.md`) - Developer: [My Apps](https://appshunter.io/developer/480787158) - Category: Utilities, Photo & Video - Price: Free - Age rating: 4+ - Requires: iOS 16.0 · 24 MB - Languages: American English - Released: 2026-10-15 - Data updated: 2026-10-29 ## What is E.C.H.O. Field Companion? E.C.H.O. Field Companion connects your iPhone or iPad to Project E.C.H.O. field sensors so you can monitor, record, visualise and review investigation telemetry in one place. WHAT YOU CAN DO • Monitor live telemetry including EMF, temperature, humidity, pressure, motion / gyro, audio levels, battery, air quality and other supported channels • Use Cam Mode with live telemetry overlays, alerts, gyro posture and configurable HUD profiles while capturing investigation photos and video • Use COMMAND Mode as a full-screen field terminal for live sensor monitoring • Explore Field Map in 2D or 3D with EMF, temperature, pressure, air quality, motion and audio layers • Run single- or multi-sensor investigations and review sensors together under one investigation • Record complete sessions with synchronised telemetry, notes, event markers, location information and media • Mark events instantly, or hold to classify events and add typed or dictated notes • Replay investigations on a synchronised timeline and inspect telemetry, events and exact readings • Use Voice Lab for EVP and audio review with waveform and spectrogram views, slow / reverse playback, selection tools, isolation workflows and on-device speech-analysis tools • Open imported sensor recordings directly in Voice Lab and compare audio with EMF, temperature and vibration telemetry on the same timeline • Generate professional PDF investigation reports with location details, telemetry charts, EMF spike detection, equipment information, events and investigator notes • Add optional Statistical Event Analysis comparing investigator-marked events against the session’s own EMF background • Export raw session data as CSV for further analysis • Import external audio, video and images into the same investigation package while keeping them clearly identified as external media • Create annotated review videos without changing the original footage • Run stand-alone investigations by arming E.C.H.O. sensors to record without a phone or computer, then import the session afterwards • Keep ownership of your investigation files, including WAV audio, CSV data and PDF reports • Save reusable investigation locations with venue details, contacts, photos and GPS • Create Social Snapshot reports and branded copies of investigation media while preserving clean originals • Update compatible E.C.H.O. hardware using signed sensor software updates • View compatible live telemetry on up to three phones or computers at the same time • Work offline in the field — core monitoring, recording and review do not require a continuous internet connection REVIEWER / DEMO No E.C.H.O. hardware is required for App Review. Open: Settings → App Review / Demo Mode Enable “Reviewer Demo Mode (no hardware)” to explore the app using simulated E.C.H.O. sensors and telemetry. COMPATIBLE HARDWARE Live Bluetooth telemetry requires compatible Project E.C.H.O. hardware. Hardware capabilities can vary between sensor revisions. The app detects supported capabilities automatically. Unsupported channels display N/A while the remaining telemetry continues to operate normally. IMPORTANT E.C.H.O. records and visualises environmental, electromagnetic, movement and audio telemetry for investigation and entertainment purposes. It does not detect ghosts, communicate with spirits, scientifically prove paranormal activity, or determine the cause of an environmental event. E.C.H.O. is not a medical or safety device. Investigators interpret the recorded data themselves. Bluetooth is used to connect to compatible sensors. Camera and microphone permissions are used for investigation photo, video and audio capture. Location, when enabled, can be associated with local investigation sessions. Core functionality does not require an account or cloud upload. Project E.C.H.O. Real data. Real insight. Real investigations. ## Is E.C.H.O. Field Companion safe? Not enough ratings yet to assess E.C.H.O. Field Companion. ## Is E.C.H.O. Field Companion legit? E.C.H.O. Field Companion has limited verification signals. The AppsHunter Legitimacy Score for E.C.H.O. Field Companion is 58 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 2 releases) ### 1.5.0 — 2026-10-28 What’s new in 1.5.0 • Sensor alerts — get notified when EMF, temperature, movement, knocked-down, or battery crosses the level you set; Last alert on the Lock Screen widget; link stays up when the phone is locked • Rooms & Locations — design several rooms on the phone, keep a floor plan per Location, and stamp it on every take • Longer Cam nights — records in seamless segments so overnight takes stay reliable; Cam Library lists every capture; big Export for desktop no longer crashes • Auto record — start Continuous or Auto (sound-triggered) for live or stand-alone sessions • Sensor health — live microSD pill on the Dashboard; Settings → Sensor Health shows flash and card space; optional flash telemetry rate for stand-alone takes • Hunt ops — stand-alone REC strip with stop confirm; calibrate or restart every linked sensor at once; Wi‑Fi hotspot channel scan when imports need a clear channel Requires compatible Project E.C.H.O. hardware for live Bluetooth. No hardware? Settings → App Review / Demo Mode. ### 1.4.0 — 2026-10-15 No release notes. --- *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 2026-10-29.*