# SpeechSync AAC vs KB Speech Professional AAC

The clearest difference is monetization model: KB Speech Professional AAC at free with in-app purchases against SpeechSync AAC's subscription. SpeechSync AAC's advantage is update cadence (every 11 days vs every 6 months) and iOS requirement (13.0 vs 17). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SpeechSync AAC sells 4 in-app purchases, starting at $22.99 per month and KB Speech Professional AAC sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

SpeechSync AAC ships an update every 11 days, KB Speech Professional AAC every 6 months. The most recent releases landed on September 19, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | SpeechSync AAC | KB Speech Professional AAC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kb-speech-professional-aac/id6748882177/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 6 months |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 251 MB | 58 MB |
| Requires iOS | **13.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [The Speech Clinic FZ-LLC](https://appshunter.io/developer/1758314771) | [Christopher Mayberry](https://appshunter.io/developer/1390482166) |

## What reviewers say

### SpeechSync AAC

[App page](https://appshunter.io/ios/app/speechsync-aac/id6557073110)

This app provides a comprehensive suite of tools for children's speech and language development. It offers engaging activities, interactive lessons, and customizable exercises with personalized feedback and adaptive learning.

**Highlights:** Engaging activities, Interactive lessons, Customizable exercises, Voice recognition, Real-time feedback, Adaptive learning

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $22.99 | per month |
| 6 Month Subscription | $59.99 | per 6 months |
| 14 days free trial | Free | one-time |
| Lifetime_access | $99.99 | one-time |


### 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 (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KBSpeech Monthly | $9.99 | per month |
| KBSpeech 6 Months | $49.99 | per 6 months |
| KBSpeech 1 Year | $79.99 | per year |
| KB Speech Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is SpeechSync AAC free?

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

### Is KB Speech Professional AAC free?

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

### Do SpeechSync AAC or KB Speech Professional AAC have ads?

Neither SpeechSync AAC nor KB Speech Professional AAC shows ads.

### Which is updated more often, SpeechSync AAC or KB Speech Professional AAC?

SpeechSync AAC ships an update every 11 days, and KB Speech Professional AAC every 6 months. Most recently, SpeechSync AAC was updated on September 19, 2026 and KB Speech Professional AAC on August 15, 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.*