# TallyFlex vs ABA Graph

The clearest difference is rating: ABA Graph at 5.0 against TallyFlex's 4.3. ABA Graph also leads on review sentiment (100% vs 64%) and in-app purchases (none vs 2). TallyFlex's advantage is ratings volume (87 vs 5). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TallyFlex sells 2 in-app purchases, starting at $27.99 per month. ABA Graph asks for nothing beyond the download.

ABA Graph holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: TallyFlex has 87 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 64% of TallyFlex's written reviews are positive against 100% of ABA Graph's.

TallyFlex ships an update every 10 days, ABA Graph every 3 days. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | TallyFlex | ABA Graph |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (87 ratings)](https://appshunter.io/ios/app/tallyflex-aba-data-collection/id1531412972/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/aba-graph/id6774166950/reviews)** |
| Number of ratings | **87** | 5 |
| Positive reviews | 64.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 87 MB | 32 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TallyFlex LLC](https://appshunter.io/developer/1531412974) | [Seven Dimensions ABA, LLC](https://appshunter.io/developer/1896238891) |

## What reviewers say

### 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 |

**What reviewers like**

- 👍 Easy to use and user-friendly
- 🚀 Quick data collection
- 📊 Visual reports and data tracking
- 💡 Customizable behavior tracking
- ✅ Great for RBTs and BCBAs

**What reviewers complain about**

- 💰 Subscription model disliked
- 📉 Data export challenges
- 🐛 Calculation glitches
- 🤔 Lack of clear documentation/help
- 🚫 Inability to add/manage students (free version)

**Reported bugs**

- Calendar not showing current sessions
- Data export results in empty Excel sheet
- Calculations and percentages are unreliable
- Data stops being counted after a certain number of opportunities
- Exported data format for duration is hard to graph

**Requested features**

- Offer a 'lite' subscription for SLPAs/BCaBAs
- Add more data collection options/types (chaining, TAs, checklists)
- Allow uploading pre-made data sheets
- Add sound alerts for timers
- Ability to re-organize behaviors on screens


### ABA Graph

[App page](https://appshunter.io/ios/app/aba-graph/id6774166950)

This professional tool allows behavior analysts to create, customize, and analyze behavioral data directly on their mobile devices. Streamline data visualization and treatment monitoring for efficient, data-based decision-making in various settings.

**Highlights:** Create and manage multiple ABA graphs, Record, edit, and organize behavioral data, Add phase change and event lines, Customize graph appearance and labels, Export graphs as PDF reports or images, Export raw data for analysis, Mobile-friendly workflow for field services

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

**In-app purchases:** none


## Frequently asked questions

### Is TallyFlex free?

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

### Is ABA Graph free?

ABA Graph is free to download, with no in-app purchases.

### Which has better reviews, TallyFlex or ABA Graph?

ABA Graph is rated higher. TallyFlex averages 4.3 out of 5 from 87 ratings, while ABA Graph averages 5.0 from 5 ratings.

### Do TallyFlex or ABA Graph have ads?

Neither TallyFlex nor ABA Graph shows ads.

### Which is updated more often, TallyFlex or ABA Graph?

TallyFlex ships an update every 10 days, and ABA Graph every 3 days. Most recently, TallyFlex was updated on October 12, 2026 and ABA Graph on October 7, 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.*