# Behavior Observer vs ABA Data Collection

Behavior Observer and ABA Data Collection are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Behavior Observer sells 2 in-app purchases, starting at $49.99 per year and ABA Data Collection sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 6, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Behavior Observer | ABA Data Collection |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 4 MB | 2 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Zaccaro](https://appshunter.io/developer/1895771100) | [Neobile LLC](https://appshunter.io/developer/1080490647) |

## What reviewers say

### Behavior Observer

[App page](https://appshunter.io/ios/app/behavior-observer/id6789358581)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Behavior Observer Pro | $49.99 | per year |
| Behavior Observer Pro Lifetime | $149.00 | one-time |


### ABA Data Collection

[App page](https://appshunter.io/ios/app/aba-data-collection-rbt-and-slp/id6797687150)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annual | $4.99 | per year |
| Lifetime | $6.99 | one-time |


## Frequently asked questions

### Is Behavior Observer free?

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

### Is ABA Data Collection free?

ABA Data Collection is free to download, with in-app purchases available.

### Do Behavior Observer or ABA Data Collection have ads?

Neither Behavior Observer nor ABA Data Collection shows ads.

### Which is updated more often, Behavior Observer or ABA Data Collection?

Behavior Observer ships an update every 2 months, and ABA Data Collection every 2 months. Most recently, Behavior Observer was updated on October 6, 2026 and ABA Data Collection 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.*