# BehaviourLog BSP Platform vs Prism

BehaviourLog BSP Platform and Prism are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

BehaviourLog BSP Platform ships an update every 2 days, Prism every 3 days. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | BehaviourLog BSP Platform | Prism |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/prism-aac/id6764692277/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | — | Free |
| Size | 1 MB | 13 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Datachain Consulting Pty Ltd](https://appshunter.io/developer/1885652613) | [Synalux LLC](https://appshunter.io/developer/1895881089) |

## What reviewers say

### BehaviourLog BSP Platform

[App page](https://appshunter.io/ios/app/behaviourlog-bsp-platform/id6763800294)

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

**In-app purchases:** none


### Prism

[App page](https://appshunter.io/ios/app/prism-aac/id6764692277)

This communication app provides on-device AI and supports 12 languages, offering a private and accessible way for nonverbal users to express themselves. It functions fully offline and can be controlled from an Apple Watch, making communication possible anywhere, anytime.

**Highlights:** On-device AI, Apple Watch support, 12 languages, Offline functionality, Customizable vocabulary, No subscriptions or ads

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BehaviourLog BSP Platform free?

BehaviourLog BSP Platform is free to download, with no in-app purchases.

### Is Prism free?

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

### Do BehaviourLog BSP Platform or Prism have ads?

Neither BehaviourLog BSP Platform nor Prism shows ads.

### Which is updated more often, BehaviourLog BSP Platform or Prism?

BehaviourLog BSP Platform ships an update every 2 days, and Prism every 3 days. Most recently, BehaviourLog BSP Platform was updated on October 6, 2026 and Prism on October 2, 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.*