Sensor Recorder Pro vs Explorer
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Sensor Recorder Pro
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Sensor Recorder Pro turns your iPhone into a local, offline multi-sensor data recorder for developers, researchers, robotics, SLAM, AR, and AI workflows. Choose between two capture modes: Standard Mode Record wide, ultra-wide, telephoto, and front cameras Capture up to three RGB camera streams, depending on device capability Record LiDAR depth on supported devices Configure resolution, frame rate, exposure, and focus ARKit Mode Record RGB video with timestamp-aligned 6-DoF camera poses Capture ARKit camera intrinsics and tracking metadata Record scene depth on supported LiDAR devices Designed for trajectory visualization, 3D reconstruction, SLAM, VIO, robotics, and spatial AI research Additional sensor streams include: Accelerometer and gyroscope IMU data Magnetometer and barometer data Device motion, attitude, and gravity Core Location data Microphone audio Each recording session produces structured, timestamped files for post-processing, sensor fusion, trajectory analysis, visual-inertial experiments, computer vision, multimodal learning, and research logs. Key Features Standard multi-camera and ARKit recording modes RGB, LiDAR depth, pose, IMU, motion, location, and audio recording Configurable camera resolution, frame rate, exposure, and focus Timestamped records for multi-sensor alignment Local file export for custom processing pipelines Fully offline recording with no cloud dependency Free version supports up to two minutes per recording session One-time upgrade unlocks unlimited recording length Use Cases Robotics and spatial AI data collection AR, SLAM, and visual-inertial odometry experiments 3D reconstruction and camera trajectory analysis Camera, LiDAR, pose, and IMU synchronization Multimodal sensor logging Teaching, research, and rapid prototyping Privacy Sensor Recorder Pro does not upload recorded data to any server. All recordings remain locally on your device and are managed or exported by you.
Explorer
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Explorer turns your iPhone into a full sensor logger. Start a session and it records your GPS track together with barometric pressure, compass heading, motion and activity data, step counts, and battery state ā in the foreground or with the screen locked. YOUR DATA STAYS YOURS Everything is stored on your device. No account, no analytics, no ads, no third-party SDKs. Data leaves your phone only when you export it ā and you choose where it goes. RECORD ⢠One-tap session recording with live dashboard: position, speed, altitude, G-force ⢠Background tracking that keeps logging while your screen is off ⢠Log points of interest with a tap - or hands-free with Siri: "Log a POI in Explorer" ⢠Per-sensor controls and sample rates to balance detail against battery EXPLORE ⢠Every session drawn on the map in its own color, with POI pins ⢠Live compass, motion, and environment views ⢠Browse every reading in the Data viewer with filters and charts ⢠Preview any session on a map before deleting it EXPORT ANYWHERE ⢠Share ZIPs of CSV or JSONL via Files, AirDrop, or Mail ⢠Or send data straight to your own server: any HTTP(S) endpoint, POST or PUT, custom headers, Bearer/Basic/API-key auth ā credentials kept in the iOS Keychain ⢠Filter exports by sensor type, session, and date range ⢠Full schema documentation built into the app (Help ā Data Reference) Explorer asks for location (including Always, for background recording) and motion permissions. Recording happens after you tap Start Tracking or open the app.
Screenshots
Verdict
The clearest difference is in-app purchases: Explorer at none against Sensor Recorder Pro's 1. Sensor Recorder Pro's advantage is iOS requirement (15.4 vs 17.0). On price, ads and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Sensor Recorder Pro sells 1 one-off in-app purchase. Explorer asks for nothing beyond the download.
| Parameter | Sensor Recorder Pro | Explorer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 weeks | ā |
| Ads | No | No |
| In-app purchases | Yes | No ā better |
| Devices | iPhone, iPod ā better | iPhone |
| Requires iOS | 15.4 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 3 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | ęčŖ å§ | James Bolderson |
In-app purchases
Sensor Recorder Pro
- Unlimited Recording$2.99
Explorer
No in-app purchases









