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GPS Recorder for iOS · Last updated: August 11, 2026

GPS Recorder records camera video together with GPS and motion-sensor readings on a single timeline, producing a time-aligned dataset for navigation research, trip analysis, and machine learning pipelines. Everything is stored on the device.

Requirements

iOS	18.0 or later
Device	iPhone or iPad (GPS requires a device with location hardware)
Permissions	Camera, Microphone, Location (Always)
Interface language	Russian

Recording a session

On first launch, grant Camera, Microphone, and Location access. Location must be set to Always — otherwise the GPS track breaks whenever the app goes to the background.
Open the Камера (Camera) tab. The live preview shows coordinates, speed, altitude, and heading.
Tap Начать запись логов (Start recording). A red badge and a timer appear.
To finish, slide the stop button (Сдвиньте, чтобы остановить). Sliding prevents an accidental tap from ending the recording.

Exporting data

Open the Сессии (Sessions) tab, tap the share icon on a row and pick Видео (video.mp4), Данные (data.jsonl.gz), or Вся папка (the whole session folder). Files are also reachable through the iOS Files app under On My iPhone → GPSRecorder.

Data format

Each session is a folder named YYYY-MM-DD-hh-mm-ss-sss containing video.mp4 (H.264 720p, 4 Mbps, AAC audio) and data.jsonl.gz — gzip-compressed JSON Lines. Every line is one measurement:

{"name": "<record_type>", "timestamp": <ns since boot>, "value": { … }}

Record types: device_info, system_timestamp, location, accelerometer, gyrometer, magnetometer, linear_accelerometer, gravity, attitude, video_frame. The video_frame records carry the presentation timestamp of every encoded frame, so video and sensor data can be aligned exactly. Use system_timestamp (wall clock at session start) to convert monotonic nanoseconds to absolute time.

Troubleshooting

No coordinates in the overlay — indoors GPS may be unavailable; go outside and wait a few seconds for a fix.
Recording stops in the background — check that Location is set to Always in iOS Settings → GPSRecorder, and that Low Power Mode is off.
Not enough storage — a session grows by roughly 30 MB per minute of video; delete old sessions by swiping a row in the Sessions tab.
Recording did not start — make sure no other app is using the camera.

Privacy

Recordings never leave the device unless you share them yourself. The app contains no ads, analytics, or third-party SDKs. See the privacy policy for details.

Contact

Questions, bug reports, and feature requests: e.tyutyuev@2gis.ru. Please include your device model, iOS version, and app version (App Store → GPSRecorder).