# TD Talk vs Symbol Overlay Maker

The clearest difference is rating: TD Talk at 4.2 against Symbol Overlay Maker's 2.3. TD Talk also leads on update cadence (every 2 months vs every 6 months). Symbol Overlay Maker's advantage is iOS requirement (13.0 vs 17.2). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TD Talk holds the better App Store score, 4.2 against 2.3. Both are backed by a comparable volume of ratings — 11 and 4 respectively.

TD Talk ships an update every 2 months, Symbol Overlay Maker every 6 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | TD Talk | Symbol Overlay Maker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (11 ratings)](https://appshunter.io/ios/app/td-talk/id1509210085/reviews)** | [2.3 (4 ratings)](https://appshunter.io/ios/app/symbol-overlay-maker/id1510255596/reviews) |
| Number of ratings | **11** | 4 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 305 MB | 142 MB |
| Requires iOS | 17.2 | **13.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tobii Dynavox LLC](https://appshunter.io/developer/446210474) | [AbleNet](https://appshunter.io/developer/390532170) |

## 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

**Features:** Vision Pro support

**In-app purchases:** none


### Symbol Overlay Maker

[App page](https://appshunter.io/ios/app/symbol-overlay-maker/id1510255596)

Easily create printable symbol overlays for communication devices and switches. Supports core words, classroom activities, and home communication with a large symbol library.

**Highlights:** Create printable symbol overlays, Supports speech devices and switches, Includes SymbolStix symbol set, Supports core words and activities, Printable for home and classroom use

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

**In-app purchases:** none


## Frequently asked questions

### Is TD Talk free?

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

### Is Symbol Overlay Maker free?

Symbol Overlay Maker is free to download, with no in-app purchases.

### Which has better reviews, TD Talk or Symbol Overlay Maker?

TD Talk is rated higher. TD Talk averages 4.2 out of 5 from 11 ratings, while Symbol Overlay Maker averages 2.3 from 4 ratings.

### Do TD Talk or Symbol Overlay Maker have ads?

Neither TD Talk nor Symbol Overlay Maker shows ads.

### Which is updated more often, TD Talk or Symbol Overlay Maker?

TD Talk ships an update every 2 months, and Symbol Overlay Maker every 6 months. Most recently, TD Talk was updated on October 24, 2026 and Symbol Overlay Maker on October 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.*