# Griffin Reader Pro vs OptSee

The clearest difference is update cadence: Griffin Reader Pro at every 2 days against OptSee's every 3 months. Griffin Reader Pro also leads on iOS requirement (9.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Griffin Reader Pro ships an update every 2 days, OptSee every 3 months. The most recent releases landed on September 6, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Griffin Reader Pro | OptSee |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 months |
| Size | 93 MB | 57 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [骏 杨](https://appshunter.io/developer/1513725819) | [Shenzhen Optech Technology Co., Ltd.](https://appshunter.io/developer/1863628345) |

## What reviewers say

### Griffin Reader Pro

[App page](https://appshunter.io/ios/app/griffin-reader-pro/id6745780058)

**Features:** macOS Compatibility

**In-app purchases:** none


### OptSee

[App page](https://appshunter.io/ios/app/optsee/id6756913778)

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

**In-app purchases:** none


## Frequently asked questions

### Is Griffin Reader Pro free?

Griffin Reader Pro is free to download, with no in-app purchases.

### Is OptSee free?

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

### Do Griffin Reader Pro or OptSee have ads?

Neither Griffin Reader Pro nor OptSee shows ads.

### Which is updated more often, Griffin Reader Pro or OptSee?

Griffin Reader Pro ships an update every 2 days, and OptSee every 3 months. Most recently, Griffin Reader Pro was updated on September 6, 2026 and OptSee on September 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.*