# PreFresh Pen Size Calculator vs Behavior Data Collection Lite

The clearest difference is update cadence: Behavior Data Collection Lite at every 6 months against PreFresh Pen Size Calculator's every 16 months. 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.

PreFresh Pen Size Calculator ships an update every 16 months, Behavior Data Collection Lite every 6 months. The most recent releases landed on November 1, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | PreFresh Pen Size Calculator | Behavior Data Collection Lite |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 6 months** |
| Size | 6 MB | 13 MB |
| Requires iOS | 12.0 | **11.2** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [University of Wisconsin - Madison School of Veterinary Medicine](https://appshunter.io/developer/871872159) | [ATWare Solutions LLC](https://appshunter.io/developer/1090490769) |

## What reviewers say

### PreFresh Pen Size Calculator

[App page](https://appshunter.io/ios/app/prefresh-pen-size-calculator/id983609290)

**Features:** macOS Compatibility

**In-app purchases:** none


### Behavior Data Collection Lite

[App page](https://appshunter.io/ios/app/behavior-data-collection-lite/id6444665790)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PreFresh Pen Size Calculator free?

PreFresh Pen Size Calculator is free to download, with no in-app purchases.

### Is Behavior Data Collection Lite free?

Behavior Data Collection Lite is free to download, with no in-app purchases.

### Do PreFresh Pen Size Calculator or Behavior Data Collection Lite have ads?

Neither PreFresh Pen Size Calculator nor Behavior Data Collection Lite shows ads.

### Which is updated more often, PreFresh Pen Size Calculator or Behavior Data Collection Lite?

PreFresh Pen Size Calculator ships an update every 16 months, and Behavior Data Collection Lite every 6 months. Most recently, PreFresh Pen Size Calculator was updated on November 1, 2026 and Behavior Data Collection Lite on September 11, 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.*