# CPS Link vs smartHMI

The clearest difference is update cadence: CPS Link at every 3 weeks against smartHMI's every 7 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.

CPS Link ships an update every 3 weeks, smartHMI every 7 months. The most recent releases landed on October 1, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | CPS Link | smartHMI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.9 (154 ratings)](https://appshunter.io/ios/app/cps-link/id1185092042/reviews)** | — |
| Number of ratings | **154** | — |
| Positive reviews | 13.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 7 months |
| Monetization | Free | — |
| Size | 85 MB | 115 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [CPS Products, Inc.](https://appshunter.io/developer/945771072) | [Siemens AG](https://appshunter.io/developer/394503271) |

## What reviewers say

### CPS Link

[App page](https://appshunter.io/ios/app/cps-link/id1185092042)

Connect multiple wireless sensors to create a comprehensive diagnostic measurement system. Perform quick single measurements or complex full system diagnostics with analytics. Expand your system over time with new sensor solutions.

**Highlights:** Connect multiple wireless sensors, Comprehensive diagnostic measurement system, Perform quick measurements, Complex system diagnostics with analytics, Expandable sensor system

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Worked well initially
- 💡 Useful features

**What reviewers complain about**

- 🐛 Frequent crashes
- 🔌 Connectivity issues
- ⚠️ Unreliable performance
- 💸 Expensive for poor quality

**Reported bugs**

- App crashes on launch
- Bluetooth connectivity problems
- Inconsistent readings and measurements
- Incompatible with newer iOS versions

**Requested features**

- Update app to fix compatibility issues
- Improve customer support and responsiveness
- Provide better documentation and troubleshooting guides


### smartHMI

[App page](https://appshunter.io/ios/app/smarthmi/id6448357450)

**In-app purchases:** none


## Frequently asked questions

### Is CPS Link free?

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

### Is smartHMI free?

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

### Do CPS Link or smartHMI have ads?

Neither CPS Link nor smartHMI shows ads.

### Which is updated more often, CPS Link or smartHMI?

CPS Link ships an update every 3 weeks, and smartHMI every 7 months. Most recently, CPS Link was updated on October 1, 2026 and smartHMI on September 27, 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.*