# JSA vs Field1st

The clearest difference is in-app purchases: Field1st at none against JSA's 5. Field1st also leads on update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. JSA sells 5 one-off in-app purchases. Field1st asks for nothing beyond the download.

JSA ships an update every 2 months, Field1st fortnightly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | JSA | Field1st |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/jsa-onthego/id1369505754/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 31 MB | 177 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Job Safety OnTheGo Pty Ltd](https://appshunter.io/developer/1367096564) | [RTS Labs](https://appshunter.io/developer/903950262) |

## What reviewers say

### JSA

[App page](https://appshunter.io/ios/app/jsa-onthego/id1369505754)

Streamline job safety analyses with AI-powered risk assessment and PPE generation. Create professional, color-coded PDF documents with digital signatures and timestamps. Features include customizable risk matrices, voice recognition, and the ability to reuse previous analyses.

**Highlights:** AI-powered JSA/JHA/JSEA generation, Automated risk assessment and PPE recommendations, Customizable risk matrix editor, Voice recognition for faster input, Reuse of previous JSA/JHA documents, Cloud saving and offline access, Digitally signed and timestamped PDF reports

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JSA On-Demand | $0.99 | one-time |
| One month subscription | $9.99 | one-time |
| Three month subscription | $25.99 | one-time |
| Six month subscription | $47.99 | one-time |
| Full year subscription | $89.99 | one-time |


### Field1st

[App page](https://appshunter.io/ios/app/field1st/id1529461416)

**In-app purchases:** none


## Frequently asked questions

### Is JSA free?

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

### Is Field1st free?

Field1st is free to download, with no in-app purchases.

### Do JSA or Field1st have ads?

Neither JSA nor Field1st shows ads.

### Which is updated more often, JSA or Field1st?

JSA ships an update every 2 months, and Field1st fortnightly. Most recently, JSA was updated on November 2, 2026 and Field1st on November 3, 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.*