# PreviewBrowser vs Smart Brain App

The clearest difference is device support: Smart Brain App at 3 against PreviewBrowser's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

PreviewBrowser ships an update every 7 months, Smart Brain App every 8 months. The most recent releases landed on September 17, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | PreviewBrowser | Smart Brain App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/previewbrowser/id1169214525/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 8 months |
| Monetization | Free | — |
| Size | 50 MB | 31 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NWEA](https://appshunter.io/developer/1087546324) | [Zaher Al Abtah](https://appshunter.io/developer/1098970804) |

## What reviewers say

### PreviewBrowser

[App page](https://appshunter.io/ios/app/previewbrowser/id1169214525)

This application serves as a specialized tool for educators to review test items on iOS devices. It is designed for use with the Level12 delivery platform and is not intended for general public access.

**Highlights:** Test item review, iOS device compatibility, Level12 platform integration, Educator-specific tool

**In-app purchases:** none


### Smart Brain App

[App page](https://appshunter.io/ios/app/smart-brain-app/id6514279720)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PreviewBrowser free?

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

### Is Smart Brain App free?

Smart Brain App is free to download, with no in-app purchases.

### Do PreviewBrowser or Smart Brain App have ads?

Neither PreviewBrowser nor Smart Brain App shows ads.

### Which is updated more often, PreviewBrowser or Smart Brain App?

PreviewBrowser ships an update every 7 months, and Smart Brain App every 8 months. Most recently, PreviewBrowser was updated on September 17, 2026 and Smart Brain App on May 17, 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.*