# TallyFlex vs RethinkEd

The clearest difference is in-app purchases: RethinkEd at none against TallyFlex's 2. TallyFlex's advantage is update cadence (every 10 days vs every 6 weeks). 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. RethinkEd asks for nothing beyond the download.

TallyFlex ships an update every 10 days, RethinkEd every 6 weeks. The most recent releases landed on September 28, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | TallyFlex | RethinkEd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (87 ratings)](https://appshunter.io/ios/app/tallyflex-aba-data-collection/id1531412972/reviews)** | — |
| Number of ratings | **87** | — |
| Positive reviews | 64.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 87 MB | 46 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TallyFlex LLC](https://appshunter.io/developer/1531412974) | [Rethink Autism](https://appshunter.io/developer/496625655) |

## 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 |


### RethinkEd

[App page](https://appshunter.io/ios/app/rethinked/id1660089692)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TallyFlex free?

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

### Is RethinkEd free?

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

### Do TallyFlex or RethinkEd have ads?

Neither TallyFlex nor RethinkEd shows ads.

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

TallyFlex ships an update every 10 days, and RethinkEd every 6 weeks. Most recently, TallyFlex was updated on September 28, 2026 and RethinkEd on September 23, 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.*