# Joslin Insight vs Shield222

The clearest difference is review sentiment: Shield222 at 100% against Joslin Insight's 33%. Shield222 also leads on rating (5.0 vs 3.6) and update cadence (fortnightly vs every 5 weeks). Joslin Insight's advantage is ratings volume (5 vs 1). 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.

Shield222 holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Joslin Insight has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 33% of Joslin Insight's written reviews are positive against 100% of Shield222's.

Joslin Insight ships an update every 5 weeks, Shield222 fortnightly. Both last shipped on November 3, 2026.

## The numbers

| Metric | Joslin Insight | Shield222 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (5 ratings)](https://appshunter.io/ios/app/joslin-insight/id1631619594/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shield222/id6449041539/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 80 MB | 28 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Joslin Insight, Inc.](https://appshunter.io/developer/1630977772) | [Eden Park Illumination Inc](https://appshunter.io/developer/1613387611) |

## What reviewers say

### Joslin Insight

[App page](https://appshunter.io/ios/app/joslin-insight/id1631619594)

This application provides healthcare market insights and real-time workforce sentiment data. It empowers leaders to gather immediate feedback to enhance employee satisfaction and retention.

**Highlights:** Healthcare market insight, Real-time workforce sentiment data, Gather immediate feedback, Improve satisfaction, Enhance retention

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

**In-app purchases:** none


### Shield222

[App page](https://appshunter.io/ios/app/shield222/id6449041539)

This app works with a special device to measure and monitor 222nm Far UV-C germicidal devices. It helps you track UV readings remotely, understand disinfection effectiveness, and learn about UV dose limits for a cleaner, healthier environment.

**Highlights:** Measure and monitor UV-C germicidal devices, Track UV readings remotely, Understand UV dose threshold limits, User-friendly interface, Compatible with MeasureShield222 device

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Joslin Insight free?

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

### Is Shield222 free?

Shield222 is free to download, with no in-app purchases.

### Which has better reviews, Joslin Insight or Shield222?

Shield222 is rated higher. Joslin Insight averages 3.6 out of 5 from 5 ratings, while Shield222 averages 5.0 from 1 ratings.

### Do Joslin Insight or Shield222 have ads?

Neither Joslin Insight nor Shield222 shows ads.

### Which is updated more often, Joslin Insight or Shield222?

Joslin Insight ships an update every 5 weeks, and Shield222 fortnightly. Most recently, Joslin Insight was updated on November 3, 2026 and Shield222 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.*