# Study Notes ABA vs TallyFlex

The clearest difference is rating: Study Notes ABA at 4.9 against TallyFlex's 4.3. Study Notes ABA also leads on review sentiment (89% vs 64%) and ratings volume (3.6K vs 87). TallyFlex's advantage is monetization model (free with in-app purchases vs subscription) and update cadence (every 2 weeks vs every 5 weeks). On price, ads, in-app purchases and device support 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 TallyFlex sells 2 in-app purchases, starting at $27.99 per month. Whichever you choose, the download price is not the number that matters.

Study Notes ABA holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: Study Notes ABA has 3.6K ratings behind it against 87, so its average is the more settled of the two. Written reviews point the same way: 89% of Study Notes ABA's written reviews are positive against 64% of TallyFlex's.

Study Notes ABA ships an update every 5 weeks, TallyFlex every 2 weeks. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Study Notes ABA | TallyFlex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (3.6K ratings)](https://appshunter.io/ios/app/study-notes-aba/id1496799082/reviews)** | [4.3 (87 ratings)](https://appshunter.io/ios/app/tallyflex-aba-data-collection/id1531412972/reviews) |
| Number of ratings | **3.6K** | 87 |
| Positive reviews | **88.7% of reviews** | 64.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 1.3 GB | 87 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Bx Connections LLC](https://appshunter.io/developer/1496799081) | [TallyFlex LLC](https://appshunter.io/developer/1531412974) |

## 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


### TallyFlex

[App page](https://appshunter.io/ios/app/tallyflex-aba-data-collection/id1531412972)

This app replaces paper data sheets for behavioral data collection. It helps professionals like BCBAs and RBTs work faster and more accurately with clients in clinics, schools, and homes. It offers various tracking methods and secure data export for reports.

**Highlights:** Replace paper data sheets, Track ABC data, frequency, duration, latency, Automatic timers for interval recording, Task analysis and prompt codes, Track multiple behaviors simultaneously, Export data to PDF, CSV, XLSX, Works offline

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TallyFlex Solo Monthly | $27.99 | per month |
| Solo Yearly | $279.99 | per year |


## Frequently asked questions

### Is Study Notes ABA free?

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

### Is TallyFlex free?

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

### Which has better reviews, Study Notes ABA or TallyFlex?

Study Notes ABA is rated higher. Study Notes ABA averages 4.9 out of 5 from 3.6K ratings, while TallyFlex averages 4.3 from 87 ratings.

### Do Study Notes ABA or TallyFlex have ads?

Neither Study Notes ABA nor TallyFlex shows ads.

### Which is updated more often, Study Notes ABA or TallyFlex?

Study Notes ABA ships an update every 5 weeks, and TallyFlex every 2 weeks. Most recently, Study Notes ABA was updated on September 22, 2026 and TallyFlex on September 24, 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.*