# RethinkBH vs TallyFlex

The clearest difference is review sentiment: TallyFlex at 64% against RethinkBH's 12%. TallyFlex also leads on rating (4.3 vs 2.5) and update cadence (every 2 weeks vs every 5 weeks). RethinkBH's advantage is in-app purchases (none vs 2). On price, ratings volume, ads and device support there is nothing between them.

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

TallyFlex holds the better App Store score, 4.3 against 2.5. Both are backed by a comparable volume of ratings — 113 and 87 respectively. Written reviews point the same way: 12% of RethinkBH's written reviews are positive against 64% of TallyFlex's.

RethinkBH ships an update every 5 weeks, TallyFlex every 2 weeks. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | RethinkBH | TallyFlex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (113 ratings)](https://appshunter.io/ios/app/rethinkbh/id1046669361/reviews) | **[4.3 (87 ratings)](https://appshunter.io/ios/app/tallyflex-aba-data-collection/id1531412972/reviews)** |
| Number of ratings | **113** | 87 |
| Positive reviews | 11.8% of reviews | **64.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 26 MB | 87 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rethink Autism](https://appshunter.io/developer/496625655) | [TallyFlex LLC](https://appshunter.io/developer/1531412974) |

## What reviewers say

### RethinkBH

[App page](https://appshunter.io/ios/app/rethinkbh/id1046669361)

This app allows first subscribers to monitor and analyze behavioral data for children with special needs. It is designed for professionals, organizations, and individuals seeking to track progress and understand behavioral patterns.

**Highlights:** Assess behavioral data, Track behavioral data, For children with special needs, For professionals and organizations, For individual users

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 RethinkBH free?

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

### Is TallyFlex free?

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

### Which has better reviews, RethinkBH or TallyFlex?

TallyFlex is rated higher. RethinkBH averages 2.5 out of 5 from 113 ratings, while TallyFlex averages 4.3 from 87 ratings.

### Do RethinkBH or TallyFlex have ads?

Neither RethinkBH nor TallyFlex shows ads.

### Which is updated more often, RethinkBH or TallyFlex?

RethinkBH ships an update every 5 weeks, and TallyFlex every 2 weeks. Most recently, RethinkBH was updated on September 21, 2026 and TallyFlex on September 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*