# KB Speech Professional AAC vs I Cannot Speak

The clearest difference is update cadence: I Cannot Speak at monthly against KB Speech Professional AAC's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. KB Speech Professional AAC sells 5 in-app purchases, starting at $9.99 per month and I Cannot Speak sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

KB Speech Professional AAC ships an update every 6 months, I Cannot Speak monthly. The most recent releases landed on October 17, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | KB Speech Professional AAC | I Cannot Speak |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kb-speech-professional-aac/id6748882177/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 58 MB | 18 MB |
| Requires iOS | **17** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Christopher Mayberry](https://appshunter.io/developer/1390482166) | [Sakib Shaikh](https://appshunter.io/developer/1838917043) |

## What reviewers say

### KB Speech Professional AAC

[App page](https://appshunter.io/ios/app/kb-speech-professional-aac/id6748882177)

This app provides a comprehensive Augmentative and Alternative Communication (AAC) solution for individuals with speech and language challenges. It offers professional-grade tools, industry-standard symbols, and extensive customization options for immediate use.

**Highlights:** 56 pre-loaded professional communication tiles, 3,400+ Mulberry Symbol Set pictograms, Intelligent folder system for organization, Create custom tiles with text, audio, video, or photos, Works entirely offline, Seamless synchronization across iOS devices

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KBSpeech Monthly | $9.99 | per month |
| KBSpeech 1 Year | $39.99 | per year |
| KBSpeech 6 Months | $49.99 | per 6 months |
| KB Speech Lifetime Promo | $59.99 | one-time |
| KB Speech Lifetime | $99.99 | one-time |


### I Cannot Speak

[App page](https://appshunter.io/ios/app/i-cannot-speak/id6807525839)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| I Cannot Speak Pro Monthly | $4.99 | per month |
| I Cannot Speak Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is KB Speech Professional AAC free?

KB Speech Professional AAC is free to download, with in-app purchases available.

### Is I Cannot Speak free?

I Cannot Speak is free to download, with in-app purchases available.

### Do KB Speech Professional AAC or I Cannot Speak have ads?

Neither KB Speech Professional AAC nor I Cannot Speak shows ads.

### Which is updated more often, KB Speech Professional AAC or I Cannot Speak?

KB Speech Professional AAC ships an update every 6 months, and I Cannot Speak monthly. Most recently, KB Speech Professional AAC was updated on October 17, 2026 and I Cannot Speak on October 31, 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.*