# Sensitometer vs Reflex

The clearest difference is rating: Reflex at 3.5 against Sensitometer's 2.5. Reflex also leads on update cadence (every 2 weeks vs every 2 months) and ratings volume (23 vs 6). Sensitometer's advantage is in-app purchases (none vs 5) and review sentiment (25% vs 0%). On price and ads there is nothing between them.

Both are free to download. Reflex sells 5 in-app purchases, starting at $1.99 per month. Sensitometer asks for nothing beyond the download.

Reflex holds the better App Store score, 3.5 against 2.5. Both are backed by a comparable volume of ratings — 6 and 23 respectively. Written reviews complicate that: 25% of Sensitometer's written reviews are positive against 0% of Reflex's, so the app with the better star average is not the one people write more warmly about.

Sensitometer ships an update every 2 months, Reflex every 2 weeks. The most recent releases landed on September 28, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Sensitometer | Reflex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (6 ratings)](https://appshunter.io/ios/app/sensitometer/id1185936010/reviews) | **[3.5 (23 ratings)](https://appshunter.io/ios/app/reflex-plr-analyzer/id1412154869/reviews)** |
| Number of ratings | 6 | **23** |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | **Free** | Subscription |
| Size | 63 MB | 22 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | +17 |
| Developer | [KagenAir](https://appshunter.io/developer/923557229) | [Brightlamp, Inc.](https://appshunter.io/developer/1380261827) |

## What reviewers say

### Sensitometer

[App page](https://appshunter.io/ios/app/sensitometer/id1185936010)

Discover your sensitivity levels with a science-based, two-step test. It analyzes your responses to questions and your eye's reaction to light using your device's camera. Find out if you are hypersensitive and learn more about managing it.

**Highlights:** Two-step sensitivity test, Questionnaire analysis, Eye-light reaction measurement, Degree of Sensitivity score, Hypersensitivity information, Share results with others

**Features:** macOS Compatibility

**In-app purchases:** none


### Reflex

[App page](https://appshunter.io/ios/app/reflex-plr-analyzer/id1412154869)

This tool measures and tracks pupillary activity using an iPhone camera for quick, 5-second tests. It helps medical professionals monitor patient progress and identify deviations for clinical decision support.

**Highlights:** Pupillary readings via iPhone camera, 5-second test duration, Patient progress tracking, Baseline feature for deviations, Clinical decision support tool, Rapid biomarker validation

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Critical Care Monthly | $1.99 | per month |
| Monthly Subscription | $41.99 | per month |
| Monthly Subscription | $41.99 | per month |
| Yearly Subscription | $419.99 | per year |
| Yearly Subscription | $419.99 | per year |


## Frequently asked questions

### Is Sensitometer free?

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

### Is Reflex free?

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

### Which has better reviews, Sensitometer or Reflex?

Reflex is rated higher. Sensitometer averages 2.5 out of 5 from 6 ratings, while Reflex averages 3.5 from 23 ratings.

### Do Sensitometer or Reflex have ads?

Neither Sensitometer nor Reflex shows ads.

### Which is updated more often, Sensitometer or Reflex?

Sensitometer ships an update every 2 months, and Reflex every 2 weeks. Most recently, Sensitometer was updated on September 28, 2026 and Reflex on October 14, 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.*