# OKN Strips vs Reflex

The clearest difference is review sentiment: OKN Strips at 62% against Reflex's 0%. OKN Strips also leads on rating (4.6 vs 3.5) and in-app purchases (none vs 5). Reflex's advantage is price (Free vs $3.99) and update cadence (every 2 weeks vs every 3 months). On ads there is nothing between them.

Reflex is free to download; OKN Strips costs $3.99 up front. Reflex sells 5 in-app purchases, starting at $1.99 per month. OKN Strips asks for nothing beyond the download.

OKN Strips holds the better App Store score, 4.6 against 3.5. That said, the two scores are not equally well evidenced: OKN Strips has 586 ratings behind it against 23, so its average is the more settled of the two. Written reviews point the same way: 62% of OKN Strips's written reviews are positive against 0% of Reflex's.

OKN Strips ships an update every 3 months, Reflex every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | OKN Strips | Reflex |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.6 (586 ratings)](https://appshunter.io/ios/app/okn-strips/id496001751/reviews)** | [3.5 (23 ratings)](https://appshunter.io/ios/app/reflex-plr-analyzer/id1412154869/reviews) |
| Number of ratings | **586** | 23 |
| Positive reviews | **61.5% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | **Paid** | Subscription |
| Best chart rank | **#71** | — |
| Size | 7 MB | 22 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | +17 |
| Developer | [Thomas Alvarez](https://appshunter.io/developer/496001754) | [Brightlamp, Inc.](https://appshunter.io/developer/1380261827) |

## What reviewers say

### OKN Strips

[App page](https://appshunter.io/ios/app/okn-strips/id496001751)

**Currently charting:** #71 Top Paid · Medical (US App Store)

This diagnostic and therapeutic app aids in evaluating neurological, otological, and ophthalmological disorders. It features moving strips to elicit nystagmus, a red desaturation test, and an Amsler grid for comprehensive eye examinations.

**Highlights:** Optokinetic Nystagmus (OKN) elicitation, Red Desaturation test, Amsler Grid for eye testing, Adjustable strip speed, color, and width, Reverse strip direction, Toolbar hide/show functionality

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

**In-app purchases:** none

**What reviewers like**

- 👍 Helpful for eye therapy
- 👍 Reduces eye strain and dizziness
- 👍 Effective for nerve/muscle paralysis
- 👍 Great for babies' OKN assessment
- 👍 Good for Amsler grid use

**What reviewers complain about**

- 😞 No way to adjust speed/style
- 😞 Cannot customize direction
- 😞 Lacks options for smooth pursuit/saccades
- 😞 Expensive for basic functionality
- 😞 Difficult to uninstall

**Reported bugs**

- Red desaturation test color doesn't change
- Red-Black inversion doesn't work on grid test
- Cannot go back to menu from OKN strips without restarting app

**Requested features**

- Recording feature
- Adjustable speed and style
- Change direction of movement (left/right, up/down)
- Options for smooth pursuit, saccades, VOR
- Horizontal stripes option


### 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 OKN Strips free?

OKN Strips costs $3.99, with no in-app purchases.

### Is Reflex free?

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

### Which has better reviews, OKN Strips or Reflex?

OKN Strips is rated higher. OKN Strips averages 4.6 out of 5 from 586 ratings, while Reflex averages 3.5 from 23 ratings.

### Do OKN Strips or Reflex have ads?

Neither OKN Strips nor Reflex shows ads.

### Which is updated more often, OKN Strips or Reflex?

OKN Strips ships an update every 3 months, and Reflex every 2 weeks. Most recently, OKN Strips was updated on October 24, 2026 and Reflex on October 25, 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.*