# Communication Buttons vs Modu

The clearest difference is price: Modu at Free against Communication Buttons's $2.99. Modu also leads on update cadence (weekly vs every 37 months). Communication Buttons's advantage is iOS requirement (11.0 vs 15.5). On ads, in-app purchases and device support there is nothing between them.

Modu is free to download; Communication Buttons costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Communication Buttons ships an update every 37 months, Modu weekly. The most recent releases landed on September 16, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Communication Buttons | Modu |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/communication-buttons/id1461342552/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 37 months | **Weekly** |
| Monetization | Paid | — |
| Size | 30 MB | 147 MB |
| Requires iOS | **11.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Preferred Mobile Applications, LLC](https://appshunter.io/developer/779885959) | [雪寒 周](https://appshunter.io/developer/1892756116) |

## What reviewers say

### Communication Buttons

[App page](https://appshunter.io/ios/app/communication-buttons/id1461342552)

This app offers a simple way to practice augmentative communication. Customize buttons with pictures and voice recordings to express words, phrases, or even songs. It's designed to demonstrate cause and effect and facilitate spontaneous communication.

**Highlights:** Customizable buttons, Picture customization, Voice recording, Multiple button layouts (1, 2, 4, 6), Cause and effect demonstration

**In-app purchases:** none


### Modu

[App page](https://appshunter.io/ios/app/modu-chinese-reader/id6788653501)

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

**In-app purchases:** none


## Frequently asked questions

### Is Communication Buttons free?

Communication Buttons costs $2.99, with no in-app purchases.

### Is Modu free?

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

### Do Communication Buttons or Modu have ads?

Neither Communication Buttons nor Modu shows ads.

### Which is updated more often, Communication Buttons or Modu?

Communication Buttons ships an update every 37 months, and Modu weekly. Most recently, Communication Buttons was updated on September 16, 2026 and Modu on September 29, 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.*