# AACtive vs Prism

The clearest difference is in-app purchases: Prism at none against AACtive's 3. Prism also leads on update cadence (every 3 days vs every 2 months) and iOS requirement (16.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. AACtive sells 3 in-app purchases, starting at $3.99 per 7 days. Prism asks for nothing beyond the download.

AACtive ships an update every 2 months, Prism every 3 days. The most recent releases landed on October 9, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | AACtive | Prism |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/prism-aac/id6764692277/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | — | Free |
| Size | 7 MB | 24 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [AssisTech Sp. z o.o.](https://appshunter.io/developer/1887847322) | [Synalux LLC](https://appshunter.io/developer/1895881089) |

## What reviewers say

### AACtive

[App page](https://appshunter.io/ios/app/aactive/id6761115329)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $3.99 | per 7 days |
| Monthly Plan | $8.99 | per month |
| Lifetime Plan | $34.99 | one-time |


### 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 AACtive free?

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

### Is Prism free?

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

### Do AACtive or Prism have ads?

Neither AACtive nor Prism shows ads.

### Which is updated more often, AACtive or Prism?

AACtive ships an update every 2 months, and Prism every 3 days. Most recently, AACtive was updated on October 9, 2026 and Prism on October 19, 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.*