# NFC Temp Tracker vs Watch Sensor Logger

The clearest difference is ads: NFC Temp Tracker at none against Watch Sensor Logger's shown. NFC Temp Tracker also leads on update cadence (fortnightly vs every 25 months) and iOS requirement (14.1 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NFC Temp Tracker ships an update fortnightly, Watch Sensor Logger every 25 months. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | NFC Temp Tracker | Watch Sensor Logger |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 25 months |
| Monetization | — | Free |
| Size | 2 MB | 17 MB |
| Requires iOS | **14.1** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Securitag Assembly Group Co., Ltd](https://appshunter.io/developer/1522265054) | [yuya kanbetsunawa](https://appshunter.io/developer/1597026161) |

## What reviewers say

### NFC Temp Tracker

[App page](https://appshunter.io/ios/app/nfc-temp-tracker/id1568969683)

**In-app purchases:** none


### Watch Sensor Logger

[App page](https://appshunter.io/ios/app/watch-sensor-logger/id1634449655)

Log detailed motion and GPS data from your Apple Watch. Export sensor readings like acceleration, attitude, and location as a CSV file for analysis. This app is exclusively designed for Apple Watch.

**Highlights:** Log sensor data, GPS tracking, Export to CSV, Acceleration logging, Attitude data, Time stamping

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NFC Temp Tracker free?

NFC Temp Tracker is free to download, with no in-app purchases.

### Is Watch Sensor Logger free?

Watch Sensor Logger is free to download, with no in-app purchases.

### Do NFC Temp Tracker or Watch Sensor Logger have ads?

Watch Sensor Logger shows ads; NFC Temp Tracker does not.

### Which is updated more often, NFC Temp Tracker or Watch Sensor Logger?

NFC Temp Tracker ships an update fortnightly, and Watch Sensor Logger every 25 months. Most recently, NFC Temp Tracker was updated on October 3, 2026 and Watch Sensor Logger on October 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*