# Safety Communicator vs testo Smart

The clearest difference is in-app purchases: Safety Communicator at none against testo Smart's 5. Safety Communicator also leads on rating (3.0 vs 2.7) and iOS requirement (12.0 vs 18.0). testo Smart's advantage is ratings volume (167 vs 4) and review sentiment (16% vs 0%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. testo Smart sells 5 in-app purchases, starting at $6.99 per month. Safety Communicator asks for nothing beyond the download.

Safety Communicator holds the better App Store score, 3.0 against 2.7. That said, the two scores are not equally well evidenced: testo Smart has 167 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 0% of Safety Communicator's written reviews are positive against 16% of testo Smart's, so the app with the better star average is not the one people write more warmly about.

Safety Communicator ships an update every 3 months, testo Smart every 2 months. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Safety Communicator | testo Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/safety-communicator/id1171431923/reviews)** | [2.7 (167 ratings)](https://appshunter.io/ios/app/testo-smart/id1482139629/reviews) |
| Number of ratings | 4 | **167** |
| Positive reviews | 0.0% of reviews | **16.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 33 MB | 195 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Honeywell International, Inc.](https://appshunter.io/developer/311222963) | [Testo SE & Co. KGaA](https://appshunter.io/developer/966489178) |

## What reviewers say

### Safety Communicator

[App page](https://appshunter.io/ios/app/safety-communicator/id1171431923)

This app transforms a smartphone into a communication hub for industrial workers, transmitting real-time data and location information from personal safety devices to a remote monitoring system via Wi-Fi or cellular networks. It supports multiple safety devices and can mirror alarms directly to the phone.

**Highlights:** Personal safety device data transmission, Real-time worker location tracking, Safety device alarm mirroring, Support for up to 8 safety devices, Restricted communication to authorized users, Bluetooth Low Energy (BLE) connectivity

**In-app purchases:** none


### testo Smart

[App page](https://appshunter.io/ios/app/testo-smart/id1482139629)

This app supports measurements for refrigeration, HVAC, and heating systems. It also aids in food safety, frying oil quality, and indoor climate monitoring. Quickly interpret data, create digital reports with photos, and send them via email.

**Highlights:** All-in-one system measurements, Graphical display of measured values, Digital PDF/CSV measurement reports, Email report sharing, Leak test analysis, Automatic refrigerant charging, Indoor air quality monitoring

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Multi-site measurement | $6.99 | per month |
| Air balancing | $9.99 | per month |
| Multi-site measurement | $69.90 | per year |
| Air balancing | $99.90 | per year |
| Logging digital manifold | $44.99 | one-time |

**What reviewers like**

- 👍 Good app with some features
- 🚀 Great product
- 🚀 Useful app for measurements

**What reviewers complain about**

- 🐛 App won't connect
- 🐛 Connectivity issues
- 🐛 Unreliable connection
- 🐛 Forced updates
- 🐛 Laggy and unresponsive UI

**Reported bugs**

- App won't connect to devices
- Compatibility issues with newer iOS versions
- Frequent crashes and freezes
- Inability to save favorite refrigerants
- Measurement data not displaying properly

**Requested features**

- Add option to toggle Bluetooth discovery
- Improve Bluetooth range
- Add ability to customize colors and graphs
- Improve data export functionality
- Add option to name sensors


## Frequently asked questions

### Is Safety Communicator free?

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

### Is testo Smart free?

testo Smart is free to download, with in-app purchases available.

### Which has better reviews, Safety Communicator or testo Smart?

Safety Communicator is rated higher. Safety Communicator averages 3.0 out of 5 from 4 ratings, while testo Smart averages 2.7 from 167 ratings.

### Do Safety Communicator or testo Smart have ads?

Neither Safety Communicator nor testo Smart shows ads.

### Which is updated more often, Safety Communicator or testo Smart?

Safety Communicator ships an update every 3 months, and testo Smart every 2 months. Most recently, Safety Communicator was updated on October 15, 2026 and testo Smart on October 17, 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.*