# Roche PD Research vs OptoReflex

The clearest difference is price: Roche PD Research at Free against OptoReflex's $0.99. Roche PD Research also leads on iOS requirement (15.2 vs 17.0). OptoReflex's advantage is update cadence (weekly vs every 2 months). On ads, in-app purchases and device support there is nothing between them.

Roche PD Research is free to download; OptoReflex costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Roche PD Research ships an update every 2 months, OptoReflex weekly. The most recent releases landed on October 3, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Roche PD Research | OptoReflex |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 25 MB | 3 MB |
| Requires iOS | **15.2** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [F. Hoffmann-La Roche](https://appshunter.io/developer/451131453) | [Isaias Fiuza Cabral](https://appshunter.io/developer/1896699635) |

## What reviewers say

### Roche PD Research

[App page](https://appshunter.io/ios/app/roche-pd-research/id6449247257)

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

**In-app purchases:** none


### OptoReflex

[App page](https://appshunter.io/ios/app/optoreflex-eye-tests/id6778753671)

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

**In-app purchases:** none


## Frequently asked questions

### Is Roche PD Research free?

Roche PD Research is free to download, with no in-app purchases.

### Is OptoReflex free?

OptoReflex costs $0.99, with no in-app purchases.

### Do Roche PD Research or OptoReflex have ads?

Neither Roche PD Research nor OptoReflex shows ads.

### Which is updated more often, Roche PD Research or OptoReflex?

Roche PD Research ships an update every 2 months, and OptoReflex weekly. Most recently, Roche PD Research was updated on October 3, 2026 and OptoReflex on October 18, 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.*