# NHS3100 Temperature Logger vs TempTag

The clearest difference is update cadence: TempTag at every 2 months against NHS3100 Temperature Logger's every 4 months. On price, ads, 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.

NHS3100 Temperature Logger ships an update every 4 months, TempTag every 2 months. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | NHS3100 Temperature Logger | TempTag |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/temptag/id6443588746/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 49 MB | 42 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NXP Semiconductors](https://appshunter.io/developer/383827086) | [TRIVEDI ADVANCED TECHNOLOGIES LLC](https://appshunter.io/developer/1457368535) |

## What reviewers say

### NHS3100 Temperature Logger

[App page](https://appshunter.io/ios/app/nhs3100-temperature-logger/id1288590548)

**Features:** macOS Compatibility

**In-app purchases:** none


### TempTag

[App page](https://appshunter.io/ios/app/temptag/id6443588746)

Connect to BLE-enabled data loggers to fetch temperature, humidity, and sensor data. Ideal for cold chain, healthcare, and pharmaceutical applications, it offers configuration, data download, and alarm notifications.

**Highlights:** Scan BLE data logger devices, Fetch temperature and humidity data, Configure data logger settings, Receive alarm notifications, Generate PDF and CSV reports, Cloud data integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NHS3100 Temperature Logger free?

NHS3100 Temperature Logger is free to download, with no in-app purchases.

### Is TempTag free?

TempTag is free to download, with no in-app purchases.

### Do NHS3100 Temperature Logger or TempTag have ads?

Neither NHS3100 Temperature Logger nor TempTag shows ads.

### Which is updated more often, NHS3100 Temperature Logger or TempTag?

NHS3100 Temperature Logger ships an update every 4 months, and TempTag every 2 months. Most recently, NHS3100 Temperature Logger was updated on October 20, 2026 and TempTag on October 7, 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.*