# Radiant Forehead vs Ruby Health

The clearest difference is rating: Ruby Health at 4.3 against Radiant Forehead's 1.4. Ruby Health also leads on ratings volume (2K vs 30) and review sentiment (23% vs 6%). Radiant Forehead's advantage is in-app purchases (none vs 5) and iOS requirement (8.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Ruby Health sells 5 in-app purchases, starting at $8.99 per month. Radiant Forehead asks for nothing beyond the download.

Ruby Health holds the better App Store score, 4.3 against 1.4. That said, the two scores are not equally well evidenced: Ruby Health has 2K ratings behind it against 30, so its average is the more settled of the two. Written reviews point the same way: 6% of Radiant Forehead's written reviews are positive against 23% of Ruby Health's.

Radiant Forehead ships an update every 3 weeks, Ruby Health fortnightly. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Radiant Forehead | Ruby Health |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.4 (30 ratings)](https://appshunter.io/ios/app/radiant-forehead/id1005557354/reviews) | **[4.3 (2K ratings)](https://appshunter.io/ios/app/ruby-health/id1574988352/reviews)** |
| Number of ratings | 30 | **2K** |
| Positive reviews | 5.9% of reviews | **22.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Size | 30 MB | 117 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RADIANT INNOVATION INC.](https://appshunter.io/developer/924300240) | [Sanguina, Inc](https://appshunter.io/developer/1514400672) |

## What reviewers say

### Radiant Forehead

[App page](https://appshunter.io/ios/app/radiant-forehead/id1005557354)

This application works with a specific infrared thermometer accessory to measure forehead temperature. Simply connect the device to your iPhone and use the app to scan the forehead for a quick temperature reading.

**Highlights:** Forehead temperature measurement, Works with infrared thermometer accessory, Quick scanning function, Connects via phone jack, Real-time temperature display

**Features:** macOS Compatibility

**In-app purchases:** none


### Ruby Health

[App page](https://appshunter.io/ios/app/ruby-health/id1574988352)

This app offers a non-invasive way to estimate your Iron and Circulation Scores using a fingernail selfie. It helps you monitor blood health, track lifestyle factors like water intake and menstrual cycles, and identify potential signs of iron deficiency or poor circulation. The app provides insights into your well-being and encourages a healthy lifestyle.

**Highlights:** Estimate Iron Score via fingernail selfie, Estimate Circulation Score via fingernail selfie, Track water intake, Track menstrual cycle, Log mood, supplements, and medications, View historical data and trends

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MyMobile Monthly Legacy | $8.99 | per month |
| Ruby Premium Monthly | $12.99 | per month |
| MyMobile Semi-Annual Legacy | $29.99 | per 6 months |
| MyMobile Annual Legacy | $69.99 | per year |
| Ruby Premium Annual | $99.99 | per year |

**What reviewers like**

- 🚀 Accurate readings
- ⚖️ Helpful for monitoring iron levels
- 👍 User-friendly app
- 💡 Innovative concept

**What reviewers complain about**

- 🔍 Inconsistent accuracy
- 🤔 Unreliable readings
- 💰 Expensive subscription
- 🤷‍♀️ Calibration issues

**Reported bugs**

- Camera focus problems
- App freezing or crashing
- Verification link issues

**Requested features**

- Bypass calibration option
- More free tests per month
- Compatibility improvements for newer devices


## Frequently asked questions

### Is Radiant Forehead free?

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

### Is Ruby Health free?

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

### Which has better reviews, Radiant Forehead or Ruby Health?

Ruby Health is rated higher. Radiant Forehead averages 1.4 out of 5 from 30 ratings, while Ruby Health averages 4.3 from 2K ratings.

### Do Radiant Forehead or Ruby Health have ads?

Neither Radiant Forehead nor Ruby Health shows ads.

### Which is updated more often, Radiant Forehead or Ruby Health?

Radiant Forehead ships an update every 3 weeks, and Ruby Health fortnightly. Most recently, Radiant Forehead was updated on October 15, 2026 and Ruby Health on October 16, 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.*