# TD Talk vs Unity Discover

The clearest difference is review sentiment: TD Talk at 75% against Unity Discover's 0%. TD Talk also leads on rating (4.1 vs 3.0) and in-app purchases (none vs 2). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Unity Discover sells 2 one-off in-app purchases. TD Talk asks for nothing beyond the download.

TD Talk holds the better App Store score, 4.1 against 3.0. Both are backed by a comparable volume of ratings — 10 and 4 respectively. Written reviews point the same way: 75% of TD Talk's written reviews are positive against 0% of Unity Discover's.

TD Talk ships an update every 6 weeks, Unity Discover every 5 weeks. The most recent releases landed on September 16, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | TD Talk | Unity Discover |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (10 ratings)](https://appshunter.io/ios/app/td-talk/id1509210085/reviews)** | [3.0 (4 ratings)](https://appshunter.io/ios/app/unity-discover/id6739363565/reviews) |
| Number of ratings | **10** | 4 |
| Positive reviews | **75.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 305 MB | 1.7 GB |
| Requires iOS | 17.2 | **16.0** |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Tobii Dynavox LLC](https://appshunter.io/developer/446210474) | [Prentke Romich Company](https://appshunter.io/developer/474446992) |

## What reviewers say

### TD Talk

[App page](https://appshunter.io/ios/app/td-talk/id1509210085)

This app enables communication for individuals unable to use their voice or hands. It offers text-to-speech functionality through eye-tracking or touch input, supporting a wide range of languages and voices for natural conversation.

**Highlights:** Eye-tracking communication, Touch input for typing, Customized predictive sentence construction, In-sentence editing, 35+ languages and voices, Face-to-face conversation mode, QuickMessages for common phrases

**In-app purchases:** none


### Unity Discover

[App page](https://appshunter.io/ios/app/unity-discover/id6739363565)

This app offers a risk-free trial of a communication and language building platform. It adapts to various skill levels, supporting users from basic words to complex sentences. After the trial, users can purchase the full version or continue using a limited feature set.

**Highlights:** Risk-free trial of full features, Adaptive platform for all skill levels, Supports early to advanced language, Minspeak® vocabulary accessibility, Lite-tech board access after trial

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unity 30-Day Trial | Free | one-time |
| Unity Full Version Upgrade | $299.99 | one-time |


## Frequently asked questions

### Is TD Talk free?

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

### Is Unity Discover free?

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

### Which has better reviews, TD Talk or Unity Discover?

TD Talk is rated higher. TD Talk averages 4.1 out of 5 from 10 ratings, while Unity Discover averages 3.0 from 4 ratings.

### Do TD Talk or Unity Discover have ads?

Neither TD Talk nor Unity Discover shows ads.

### Which is updated more often, TD Talk or Unity Discover?

TD Talk ships an update every 6 weeks, and Unity Discover every 5 weeks. Most recently, TD Talk was updated on September 16, 2026 and Unity Discover on September 24, 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.*