# BDI vs Three Dots Learning Attendance

The clearest difference is update cadence: Three Dots Learning Attendance at every 4 days against BDI's every 2 months. Three Dots Learning Attendance also leads on device support (3 vs 1). BDI's advantage is iOS requirement (13.0 vs 15.1). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BDI ships an update every 2 months, Three Dots Learning Attendance every 4 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BDI | Three Dots Learning Attendance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (6 ratings)](https://appshunter.io/ios/app/bdi-3-mobile-data-solution/id1532433975/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 208 MB | 38 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [RiversideInsights](https://appshunter.io/developer/1483738140) | [INTTEQ](https://appshunter.io/developer/1770085900) |

## What reviewers say

### BDI

[App page](https://appshunter.io/ios/app/bdi-3-mobile-data-solution/id1532433975)

This application assists in administering clinical assessments for child development. It offers guided digital support for scoring, timers, and reporting, functioning both online and offline. Users can manage student data and sync assessments for web-based access.

**Highlights:** Online and offline assessment administration, Guided digital scoring assistance, Basal and ceiling indicators, Built-in timers, Modular reporting options, Student data management

**Features:** Vision Pro support

**In-app purchases:** none


### Three Dots Learning Attendance

[App page](https://appshunter.io/ios/app/three-dots-learning-attendance/id6759114278)

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

**In-app purchases:** none


## Frequently asked questions

### Is BDI free?

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

### Is Three Dots Learning Attendance free?

Three Dots Learning Attendance is free to download, with no in-app purchases.

### Do BDI or Three Dots Learning Attendance have ads?

Neither BDI nor Three Dots Learning Attendance shows ads.

### Which is updated more often, BDI or Three Dots Learning Attendance?

BDI ships an update every 2 months, and Three Dots Learning Attendance every 4 days. Most recently, BDI was updated on October 24, 2026 and Three Dots Learning Attendance on October 25, 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.*