# testo Smart vs SDS Manager

The clearest difference is rating: SDS Manager at 5.0 against testo Smart's 2.7. SDS Manager also leads on in-app purchases (none vs 5) and update cadence (every 3 weeks vs every 2 months). testo Smart's advantage is ratings volume (167 vs 10). On price, 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. SDS Manager asks for nothing beyond the download.

SDS Manager holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: testo Smart has 167 ratings behind it against 10, so its average is the more settled of the two.

testo Smart ships an update every 2 months, SDS Manager every 3 weeks. The most recent releases landed on September 25, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | testo Smart | SDS Manager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (167 ratings)](https://appshunter.io/ios/app/testo-smart/id1482139629/reviews) | **[5.0 (10 ratings)](https://appshunter.io/ios/app/sds-manager/id6754279703/reviews)** |
| Number of ratings | **167** | 10 |
| Positive reviews | 16.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 195 MB | 76 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Testo SE & Co. KGaA](https://appshunter.io/developer/966489178) | [Netpower](https://appshunter.io/developer/470825521) |

## What reviewers say

### 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


### SDS Manager

[App page](https://appshunter.io/ios/app/sds-manager/id6754279703)

Access your entire chemical safety data sheet library on your mobile device, with or without an internet connection. Quickly retrieve information using barcode scanning and find essential first-aid details at a glance.

**Highlights:** Full offline access to SDS library, Barcode and QR code scanner, Mobile-friendly first-aid info, Instant employee access via QR posters, Works on iPhone and iPad

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

**In-app purchases:** none


## Frequently asked questions

### Is testo Smart free?

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

### Is SDS Manager free?

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

### Which has better reviews, testo Smart or SDS Manager?

SDS Manager is rated higher. testo Smart averages 2.7 out of 5 from 167 ratings, while SDS Manager averages 5.0 from 10 ratings.

### Do testo Smart or SDS Manager have ads?

Neither testo Smart nor SDS Manager shows ads.

### Which is updated more often, testo Smart or SDS Manager?

testo Smart ships an update every 2 months, and SDS Manager every 3 weeks. Most recently, testo Smart was updated on September 25, 2026 and SDS Manager on September 10, 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.*