# Study Notes ABA vs Understanding Behavior BCBA

The clearest difference is monetization model: Understanding Behavior BCBA at free with in-app purchases against Study Notes ABA's subscription. Understanding Behavior BCBA also leads on review sentiment (100% vs 89%). Study Notes ABA's advantage is ratings volume (3.6K vs 88). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Study Notes ABA sells 3 in-app purchases, starting at $19.99 per month and Understanding Behavior BCBA sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for Study Notes ABA against 5.0 for Understanding Behavior BCBA. That said, the two scores are not equally well evidenced: Study Notes ABA has 3.6K ratings behind it against 88, so its average is the more settled of the two. Written reviews are what separate them: 89% of Study Notes ABA's written reviews are positive against 100% of Understanding Behavior BCBA's.

Study Notes ABA ships an update every 5 weeks, Understanding Behavior BCBA every 2 months. The most recent releases landed on September 25, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Study Notes ABA | Understanding Behavior BCBA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (3.6K ratings)](https://appshunter.io/ios/app/study-notes-aba/id1496799082/reviews) | **[5.0 (88 ratings)](https://appshunter.io/ios/app/understanding-behavior-bcba/id6739206472/reviews)** |
| Number of ratings | **3.6K** | 88 |
| Positive reviews | 88.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 1.3 GB | 120 MB |
| Requires iOS | **15.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Bx Connections LLC](https://appshunter.io/developer/1496799081) | [Understanding Behavior LLC](https://appshunter.io/developer/1784214734) |

## What reviewers say

### Study Notes ABA

[App page](https://appshunter.io/ios/app/study-notes-aba/id1496799082)

Prepare for the BCBA exam with a comprehensive study service. Access over 2500 practice questions, personalized study plans, live study groups, and motivational tools. Engage with a community of learners and utilize fun games and note-sharing features to master ABA concepts.

**Highlights:** 2500+ practice questions, Personalized study plan & countdown, Weekly live study group sessions, Leaderboard and motivational badges, Study tips and strategies, Note sharing and discussion board, Deep breathing tool and study games

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $19.99 | per month |
| Updated Premium Yearly | $119.99 | per year |
| Lifetime Access | $199.99 | one-time |

**What reviewers like**

- 🚀 Amazing app
- 👍 Helpful study tool
- 👍 Fun and convenient
- 👍 Reinforcing and motivating
- 👍 Comprehensive features

**What reviewers complain about**

- 🐛 Bugs and crashes
- 🐛 Errors in questions
- 🐛 Glitches and freezing
- 💰 Expensive for some users

**Reported bugs**

- Login screen freezes
- App crashing on certain sections
- Inconsistent marking of correct answers

**Requested features**

- Dark mode option
- More explanations for answers
- Improved proofreading of content
- Better integration of live study groups


### Understanding Behavior BCBA

[App page](https://appshunter.io/ios/app/understanding-behavior-bcba/id6739206472)

Prepare for your BCBA/BCaBA certification exam with this comprehensive study tool. Access free practice questions, mini mock exams, and courses. Connect with a supportive community and find affordable study materials to help you pass.

**Highlights:** Free mini mock exams, Free fluency questions, Free courses (coming soon), Notifications for free study groups, Access to paid study products, Community interaction

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Study Hall Notes & Recordings | $19.99 | one-time |
| Fluency Questions | $39.99 | one-time |
| Mini Mocks UB | $99.00 | one-time |
| Comprehensive BCBA Exam Course | $324.99 | one-time |

**What reviewers like**

- 🚀 Excellent prep material
- 👍 Fun and clarity
- 🚀 Life saver
- 🚀 Study Materials that WORK
- 👍 Easy to Use


## Frequently asked questions

### Is Study Notes ABA free?

Study Notes ABA is free to download, with in-app purchases available.

### Is Understanding Behavior BCBA free?

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

### Which has better reviews, Study Notes ABA or Understanding Behavior BCBA?

Understanding Behavior BCBA is rated higher. Study Notes ABA averages 4.9 out of 5 from 3.6K ratings, while Understanding Behavior BCBA averages 5.0 from 88 ratings.

### Do Study Notes ABA or Understanding Behavior BCBA have ads?

Neither Study Notes ABA nor Understanding Behavior BCBA shows ads.

### Which is updated more often, Study Notes ABA or Understanding Behavior BCBA?

Study Notes ABA ships an update every 5 weeks, and Understanding Behavior BCBA every 2 months. Most recently, Study Notes ABA was updated on September 25, 2026 and Understanding Behavior BCBA on September 19, 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.*