# ChemAlert vs Onsite Mobile by Avetta

The clearest difference is review sentiment: Onsite Mobile by Avetta at 100% against ChemAlert's 33%. Onsite Mobile by Avetta also leads on iOS requirement (13.0 vs 16.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

ChemAlert ships an update every 4 months, Onsite Mobile by Avetta every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ChemAlert | Onsite Mobile by Avetta |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/chemalert/id427935573/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 106 MB | 84 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Risk Management Technologies Pty Ltd](https://appshunter.io/developer/427935576) | [Pegasus Management Pty Ltd](https://appshunter.io/developer/1076877598) |

## What reviewers say

### ChemAlert

[App page](https://appshunter.io/ios/app/chemalert/id427935573)

Manage chemical safety data sheets, compliance, and organizational chemical footprints. This mobile app integrates with the main system, allowing users to view and update stock inventory, scan barcodes, and upload pictures on the go. It also offers offline access to SDSs and product information for remote use.

**Highlights:** Manage SDSs and chemical footprint, View and update stock inventory, Scan barcodes and QR codes, Upload product images, Offline SDS access, Real-time hazard and risk insights

**In-app purchases:** none


### Onsite Mobile by Avetta

[App page](https://appshunter.io/ios/app/onsite-mobile-by-avetta/id1076877599)

Access real-time compliance data for your workforce, including contractors. Verify their qualifications, insurance, and licenses to ensure site safety and project readiness. Audit compliance in the field and create actions based on business rules.

**Highlights:** Real-time compliance access, Contractor information lookup, Verify insurance and licenses, Analyze work roles and competencies, Field compliance auditing, Create compliance actions

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ChemAlert free?

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

### Is Onsite Mobile by Avetta free?

Onsite Mobile by Avetta is free to download, with no in-app purchases.

### Do ChemAlert or Onsite Mobile by Avetta have ads?

Neither ChemAlert nor Onsite Mobile by Avetta shows ads.

### Which is updated more often, ChemAlert or Onsite Mobile by Avetta?

ChemAlert ships an update every 4 months, and Onsite Mobile by Avetta every 2 months. Most recently, ChemAlert was updated on October 23, 2026 and Onsite Mobile by Avetta on October 24, 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.*