# SFY vs Fast AAC

The clearest difference is update cadence: Fast AAC at every 3 days against SFY's every 52 months. Fast AAC also leads on review sentiment (80% vs 58%) and rating (4.4 vs 4.2). SFY's advantage is ratings volume (150 vs 8) and iOS requirement (15.6 vs 17). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. SFY sells 1 one-off in-app purchase and Fast AAC sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Fast AAC holds the better App Store score, 4.4 against 4.2. That said, the two scores are not equally well evidenced: SFY has 150 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 58% of SFY's written reviews are positive against 80% of Fast AAC's.

SFY ships an update every 52 months, Fast AAC every 3 days. The most recent releases landed on October 14, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | SFY | Fast AAC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (150 ratings)](https://appshunter.io/ios/app/sfy-lite/id521884641/reviews) | **[4.4 (8 ratings)](https://appshunter.io/ios/app/fast-aac/id6751174676/reviews)** |
| Number of ratings | **150** | 8 |
| Positive reviews | 58.3% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 52 months | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 1.4 GB | 238 MB |
| Requires iOS | **15.6** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Speak for Yourself LLC](https://appshunter.io/developer/482508201) | [Martin Saetre](https://appshunter.io/developer/1833821205) |

## What reviewers say

### SFY

[App page](https://appshunter.io/ios/app/sfy-lite/id521884641)

Experience the full capabilities of an advanced Augmentative and Alternative Communication (AAC) app for 30 days. This trial allows users to explore extensive vocabulary, programming options, and helpful features to assess communication improvement before committing to the full version.

**Highlights:** 30-day free trial, Full vocabulary access (~5000 words), Full programming capabilities, Search and history features, Hold That Thought feature, Voice options

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30-day Trial | Free | one-time |


### Fast AAC

[App page](https://appshunter.io/ios/app/fast-aac/id6751174676)

This app provides a voice for individuals with speech challenges, offering a customizable platform for nonverbal communication. It features a large library of image tiles, flexible layouts, and predictive text to facilitate ease of expression.

**Highlights:** 1800+ image tiles, Customizable layouts, Multilingual support, Predictive text suggestions, Offline functionality, Light and dark modes

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fast AAC Premium | $12.99 | one-time |


## Frequently asked questions

### Is SFY free?

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

### Is Fast AAC free?

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

### Which has better reviews, SFY or Fast AAC?

Fast AAC is rated higher. SFY averages 4.2 out of 5 from 150 ratings, while Fast AAC averages 4.4 from 8 ratings.

### Do SFY or Fast AAC have ads?

Neither SFY nor Fast AAC shows ads.

### Which is updated more often, SFY or Fast AAC?

SFY ships an update every 52 months, and Fast AAC every 3 days. Most recently, SFY was updated on October 14, 2026 and Fast AAC on October 4, 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.*