# Simple AAC vs NotiZen Pro

The clearest difference is in-app purchases: Simple AAC at none against NotiZen Pro's 3. Simple AAC also leads on iOS requirement (15.0 vs 17). NotiZen Pro's advantage is update cadence (monthly vs every 9 months). On price, ads and device support there is nothing between them.

Both are free to download. NotiZen Pro sells 3 in-app purchases, starting at $2.99 per month. Simple AAC asks for nothing beyond the download.

Simple AAC ships an update every 9 months, NotiZen Pro monthly. The most recent releases landed on July 8, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Simple AAC | NotiZen Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/simple-aac/id6444707928/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Monthly** |
| Monetization | Free | — |
| Size | 0 MB | 3 MB |
| Requires iOS | **15.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +9 |
| Developer | [Amit Ron](https://appshunter.io/developer/1656285466) | [贺 周](https://appshunter.io/developer/1815397078) |

## What reviewers say

### Simple AAC

[App page](https://appshunter.io/ios/app/simple-aac/id6444707928)

This app converts typed text into spoken words using your device's built-in voices. It supports multiple languages and offers a straightforward interface for communication.

**Highlights:** Text-to-speech conversion, Uses built-in iOS voices, Supports multiple languages, Simple keyboard input, Works on iPhone and iPad

**Features:** macOS Compatibility

**In-app purchases:** none


### NotiZen Pro

[App page](https://appshunter.io/ios/app/notizen-pro/id6762554707)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NotiZen Pro Monthly | $2.99 | per month |
| NotiZen Pro Yearly | $19.99 | per year |
| NotiZen Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Simple AAC free?

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

### Is NotiZen Pro free?

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

### Do Simple AAC or NotiZen Pro have ads?

Neither Simple AAC nor NotiZen Pro shows ads.

### Which is updated more often, Simple AAC or NotiZen Pro?

Simple AAC ships an update every 9 months, and NotiZen Pro monthly. Most recently, Simple AAC was updated on July 8, 2026 and NotiZen Pro on September 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*