NerdTrack vs Did You Forget?
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NerdTrack
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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
Did You Forget?
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Leaving home and forgetting something important happens to everyone. This app fixes that in the simplest way possible. How it works • Save your home location • Choose one important item (keys, wallet, glasses) • Get a reminder when you leave Simple. No distractions. Smart reminder When you leave home, the app gently asks: “Did you remember your item?” Accessibility mode Need bigger text? Switch to a larger, easier-to-read interface with one tap: • Bigger text • Larger buttons • Better spacing Works automatically • Adapts to your phone language • Works in the background • Easy for anyone to use Built for everyone • Clean interface • Large, readable text • No confusing menus No accounts. No setup stress. Just a simple reminder that helps.
Screenshots
Verdict
The clearest difference is iOS requirement: NerdTrack at 18.0 against Did You Forget?'s 26.1. On price and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | NerdTrack | Did You Forget? |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | — |
| Ads | No | — |
| In-app purchases | No | No |
| Devices | iPhone — better | — |
| Requires iOS | 18.0 — better | 26.1 |
| Further details — not scored | ||
| Size | 0 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Ello Skelling Productions | Bruno Hamed Zayed |
In-app purchases
NerdTrack
No in-app purchases
Did You Forget?
No in-app purchases









