# Sentry TempCheck vs Lumachain Linker

The clearest difference is update cadence: Lumachain Linker at every 6 months against Sentry TempCheck's every 17 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.

Sentry TempCheck ships an update every 17 months, Lumachain Linker every 6 months. The most recent releases landed on October 12, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sentry TempCheck | Lumachain Linker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 13 MB | 23 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [eTip](https://appshunter.io/developer/1104245743) | [Lumachain Pty Ltd](https://appshunter.io/developer/1436530984) |

## What reviewers say

### Sentry TempCheck

[App page](https://appshunter.io/ios/app/sentry-tempcheck/id1496761977)

Monitor and log temperature data for incoming and outgoing goods. Receive daily compliance reports directly to your inbox. Requires compatible Bluetooth sensors.

**Highlights:** Temperature monitoring, Compliance logging, Daily email reports, Bluetooth sensor integration, Incoming/outgoing goods tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### Lumachain Linker

[App page](https://appshunter.io/ios/app/lumachain-linker/id1552131880)

**In-app purchases:** none


## Frequently asked questions

### Is Sentry TempCheck free?

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

### Is Lumachain Linker free?

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

### Do Sentry TempCheck or Lumachain Linker have ads?

Neither Sentry TempCheck nor Lumachain Linker shows ads.

### Which is updated more often, Sentry TempCheck or Lumachain Linker?

Sentry TempCheck ships an update every 17 months, and Lumachain Linker every 6 months. Most recently, Sentry TempCheck was updated on October 12, 2026 and Lumachain Linker on October 25, 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.*