Death Day Sim vs NerdTrack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Death Day Sim
This app estimates your simulated death date based on lifestyle and health data, providing a real-time countdown. It uses actuarial data and risk factors to personalize your date, with all calculations stored locally on your device.
- Simulated death date calculation
- Live countdown clock
- Lifestyle and health factor adjustments
- Local data storage
- No account required
- Recalculate death date
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Death Day Sim calculates your simulated death date based on real statistical data and gives you a live countdown clock ticking down to that moment — down to the exact year, month, day, hour, minute, and second. Answer a few questions about your age, lifestyle, and health, and the app generates a personalized death date using actuarial life expectancy data and risk factor adjustments for things like smoking, alcohol use, exercise, diet, sleep, stress, and existing medical conditions. Once your date is set, the clock runs continuously in the background, always reminding you how much time you have left. Features include a live countdown clock updated every second, a fully local profile with no account or sign-up required, lifestyle and health-based calculations, and the ability to reset and recalculate at any time. All data is stored locally on your device and is never shared or uploaded. For entertainment purposes only. This app does not provide medical advice and the simulated death date is not a prediction of any real event.
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
Screenshots
Verdict
The clearest difference is ads: NerdTrack at none against Death Day Sim's shown. Death Day Sim's advantage is update cadence (daily vs every 2 months) and device support (3 vs 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.
Death Day Sim ships an update daily, NerdTrack every 2 months. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.
| Parameter | Death Day Sim | NerdTrack |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Daily — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 25 MB | 0 MB |
| Age rating | 12+ | 4+ |
| Developer | Shawn Revels | Ello Skelling Productions |
In-app purchases
Death Day Sim
No in-app purchases
NerdTrack
No in-app purchases
