# NerdTrack — Private location tracker

> Private location tracker (iPhone/iPad app by Ello Skelling Productions.)

- Source: https://appshunter.io/ios/app/nerdtrack/id6739551225 (this page in markdown: same URL + `.md`)
- Developer: [Ello Skelling Productions](https://appshunter.io/developer/1569508906)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 18.0 · 0 MB
- Languages: English
- Released: 2025-01-18
- Data updated: 2026-06-22
- User reviews in markdown: https://appshunter.io/ios/app/nerdtrack/id6739551225/reviews.md

## What is NerdTrack?

NerdTrack records your location in a CSV file on your phone.
No other data is collected and no data ever leaves your device.
Full source is available at https://nerdtrack.org

There is no interactive UI. Just grant location permissions, and it will log in the background. 
To stop logging, remove location permissions or uninstall app.

The app uses the SignificantLocation and CLVisit APIs. The accuracy is low but it has very low battery usage.

To get your log, open the Files app, and look for locations.csv in the Nerd Track folder.

A config file will be created in the app's documents folder the first time it runs.
Edit that file to change logging frequency or minimal distance. Force-stop and restart app to reload config.

By default, the app records location:
- Every 15 minutes, if you have moved more than 300 meters

The CSV logs timestamps in the unix epoch format.
Use 'dateconv -i %s' to convert it to something more human-readable.
Some helper scripts are available at https://nerdtrack.org


## Version history (last 5 releases)

### 2.718281828 — 2026-06-07

Added some guards to avoid CLVisit corner-cases. No functional changes. See source code for details.

### 2.71828182 — 2026-05-26

Added CLVisit API so the log will also catch extended stops even when SignificantLocation doesn't fire an update.

### 2.7182818 — 2026-03-27

Updated for XCode 26.3
Added a few guards around potentially brittle code.
No functional changes.

### 2.718281 — 2025-03-22

Added altitude to the log.
Now records: timestamp, latitude, longitude, altitude.

### 2.71828 — 2025-01-18

No release notes.

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| [LANScanner](https://appshunter.io/ios/app/lanscanner/id6751760961) | — | Free | Utilities |

## More apps by Ello Skelling Productions

- [subflow](https://appshunter.io/ios/app/subflow/id1570176211)
- [wwvbgps](https://appshunter.io/ios/app/wwvbgps/id6760921500)

All apps by Ello Skelling Productions: https://appshunter.io/developer/1569508906

## Related topics

[ello skelling productions](https://appshunter.io/ios/topics/ello-skelling-productions)

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*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 2026-06-22.*