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GeoTag Video is designed to read the DJI telemetry format shown in the .SRT files exported by the drone, and it is tested with the DJI Neo 2. Other DJI models that export .SRT files with a similar structure (latitude, longitude, rel_alt, abs_alt fields) should work correctly; models with a different format may not be recognized.

As of version 1.7 GeoTag Video is bilingual: Italian and English. By default the app follows the device language; you can still force it from the language switcher (globe icon) built into the app, which changes language immediately without restarting. Your choice is remembered even after you quit the app.

No. GeoTag Video always creates a copy of the video in the destination folder you choose, with the GPS location embedded in the metadata. The source file is never touched.

No. All processing — reading the telemetry, finding the coordinates and writing the metadata — happens entirely locally on your Mac or iPhone. The app does not communicate with any server.

Make sure the video file and the .SRT file have exactly the same base name (e.g. DJI_0001.MP4 and DJI_0001.SRT) and are in the same folder selected as the source, without subfolders. The name comparison is case-insensitive.

GeoTag Video uses the first valid GPS coordinate recorded by the drone, discarding the first moments of flight where the value is often 0.000000 before the satellite lock. If the drone locks onto the satellites a few seconds into the flight, the embedded location will match that point and not the exact take-off spot.

macOS 13 (Ventura) or later, or iOS 16 or later.

If the source folder, in addition to .MP4 and .SRT, also contains an .M4A file with the same base name (a separately recorded audio track, common on some DJI drones), GeoTag Video automatically merges it into the video during processing: the final file will contain video, audio and GPS location, without re-encoding. In the list, pairs with associated audio show an "Audio" label next to the name.

Yes, but only if you enable them. By default GeoTag Video never re-encodes the video (instant remux). The two options — "Show flight altitude on the video" and "Export resolution" (1080p/720p) — are optional: if you enable them, the video is reprocessed frame by frame to draw the overlay and/or change resolution, a process nonetheless accelerated by the Apple Silicon media engine. Leaving them off, processing stays instant as always.

Tap the video icon next to the selection checkbox, in the list of found pairs: a panel opens on the left with the recording date and time, duration, min/max/average altitude, distance travelled and camera settings (ISO, shutter, aperture), read from the .SRT file. As of version 1.5 the panel also includes a map thumbnail and an altitude chart. It is information shown on screen only: it is not burned into the exported video.

A ▶️ button appears next to each found pair: tapping it opens the original video file (not the processed one), useful to recognize the footage before starting processing. On macOS it opens with the system default app (usually QuickTime Player); on iOS a preview is shown inside the app.

Select two or more pairs with the same checkboxes used for single processing: a "Merge the N selected videos into one file" button will appear. The clips are concatenated in chronological order (by file name), with audio merged consistently for each segment. The resulting file will have the GPS location of the first included video (a QuickTime format limit, which supports a single location per file); if the altitude overlay is active, it stays correct throughout, changing exactly at the junction between one segment and the next.

After processing (single or merge), a "Save to Photos" button will appear below the completion status. On first use, iOS will ask for permission to add content to the Photos library (an add-only permission, without access to the rest of the library). Also, as of 1.4 the app supports file sharing: connecting the iPhone to the Mac via cable, the "GeoTag Video" folder appears in Finder (Files tab), letting you transfer the footage from the drone without going through iCloud or AirDrop.

Write to us at the email address below, describing the drone model, the operating system and, if possible, attaching an excerpt of the .SRT file that triggers the problem.