# The Universal Sandpit vs Behavior Tracker ABC

The clearest difference is price: Behavior Tracker ABC at Free against The Universal Sandpit's $2.99. Behavior Tracker ABC also leads on update cadence (every 4 days vs every 2 weeks). The Universal Sandpit's advantage is in-app purchases (none vs 1) and iOS requirement (15.1 vs 17.6). On ads and device support there is nothing between them.

Behavior Tracker ABC is free to download; The Universal Sandpit costs $2.99 up front. Behavior Tracker ABC sells 1 one-off in-app purchase. The Universal Sandpit asks for nothing beyond the download.

The Universal Sandpit ships an update every 2 weeks, Behavior Tracker ABC every 4 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | The Universal Sandpit | Behavior Tracker ABC |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/behavior-tracker-abc/id6768030576/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 68 MB | 10 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Craig Smith](https://appshunter.io/developer/1891571917) | [Amarjit Gill](https://appshunter.io/developer/1871776123) |

## What reviewers say

### The Universal Sandpit

[App page](https://appshunter.io/ios/app/the-universal-sandpit/id6761804059)

**Features:** macOS Compatibility

**In-app purchases:** none


### Behavior Tracker ABC

[App page](https://appshunter.io/ios/app/behavior-tracker-abc/id6768030576)

This app helps parents and caregivers document challenging moments with children, identify recurring patterns, and generate detailed reports for sharing with professionals. It uses an ABC format to log incidents, track severity, and analyze trends over time.

**Highlights:** ABC incident logging, Severity and duration tracking, Pattern identification, Shareable PDF reports, Common situation analysis, Trend monitoring

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Insights | $2.99 | one-time |


## Frequently asked questions

### Is The Universal Sandpit free?

The Universal Sandpit costs $2.99, with no in-app purchases.

### Is Behavior Tracker ABC free?

Behavior Tracker ABC is free to download, with in-app purchases available.

### Do The Universal Sandpit or Behavior Tracker ABC have ads?

Neither The Universal Sandpit nor Behavior Tracker ABC shows ads.

### Which is updated more often, The Universal Sandpit or Behavior Tracker ABC?

The Universal Sandpit ships an update every 2 weeks, and Behavior Tracker ABC every 4 days. Most recently, The Universal Sandpit was updated on October 31, 2026 and Behavior Tracker ABC on October 31, 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.*