# Chemical Safety Data Sheets vs EMResource

The clearest difference is rating: Chemical Safety Data Sheets at 4.3 against EMResource's 3.5. Chemical Safety Data Sheets also leads on review sentiment (91% vs 67%) and ratings volume (156 vs 6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Chemical Safety Data Sheets holds the better App Store score, 4.3 against 3.5. That said, the two scores are not equally well evidenced: Chemical Safety Data Sheets has 156 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 91% of Chemical Safety Data Sheets's written reviews are positive against 67% of EMResource's.

Chemical Safety Data Sheets ships an update every 3 months, EMResource every 7 months. The most recent releases landed on November 10, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Chemical Safety Data Sheets | EMResource |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (156 ratings)](https://appshunter.io/ios/app/chemical-safety-data-sheets-icsc/id405208132/reviews)** | [3.5 (6 ratings)](https://appshunter.io/ios/app/emresource/id532547490/reviews) |
| Number of ratings | **156** | 6 |
| Positive reviews | **90.7% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Free | Free |
| Size | 44 MB | 125 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [ThatsMyStapler Inc.](https://appshunter.io/developer/337472637) | [EMSystems LLC](https://appshunter.io/developer/1380217928) |

## What reviewers say

### Chemical Safety Data Sheets

[App page](https://appshunter.io/ios/app/chemical-safety-data-sheets-icsc/id405208132)

Access concise, standardized safety summaries for chemicals, ideal for workers and employers. This app provides essential health and safety information in an easy-to-review, two-page format, serving as a valuable supplement or alternative to lengthy MSDS documents.

**Highlights:** Two-page chemical safety summaries, Searchable chemical list (Name, CAS#, RTECS#), Saved history of viewed chemicals, Mark and view favorite chemicals, Filters for specific chemical types, Offline access, Email and AirPrint capabilities

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Highly useful for field work
- 👍 Accurate and useful
- 👍 Excellent resource
- 👍 Handy and informative
- 👍 Helpful app

**What reviewers complain about**

- 🐛 Unable to locate several items we strore
- 🐛 Needs an update
- 🐛 Good information, print function does not work
- 🐛 Not actual safety data sheet as per global harmonization, inaccurate safety information, no PPE information
- 🐛 No NSN Search!

**Reported bugs**

- Login screen freezes
- Incompatible with older devices

**Requested features**

- Favorites list
- Updated chemical list
- NFPA diamond
- Direct link to suppliers of hazardous substances
- Dark mode option


### EMResource

[App page](https://appshunter.io/ios/app/emresource/id532547490)

Manage emergency response tasks with access to critical information on healthcare facilities, public health clinics, and medical supplies. Update operational status, monitor capacities, and track incident-specific resources to make informed life-saving decisions.

**Highlights:** Manage incidents and events, Organize multi-region events, Update resource operational status, Monitor emergency room capacity, Track incident-specific resources

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Chemical Safety Data Sheets free?

Chemical Safety Data Sheets is free to download, with no in-app purchases.

### Is EMResource free?

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

### Which has better reviews, Chemical Safety Data Sheets or EMResource?

Chemical Safety Data Sheets is rated higher. Chemical Safety Data Sheets averages 4.3 out of 5 from 156 ratings, while EMResource averages 3.5 from 6 ratings.

### Do Chemical Safety Data Sheets or EMResource have ads?

Neither Chemical Safety Data Sheets nor EMResource shows ads.

### Which is updated more often, Chemical Safety Data Sheets or EMResource?

Chemical Safety Data Sheets ships an update every 3 months, and EMResource every 7 months. Most recently, Chemical Safety Data Sheets was updated on November 10, 2026 and EMResource on November 1, 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.*