# Symbol Overlay Maker vs Unity Discover

The clearest difference is rating: Unity Discover at 3.0 against Symbol Overlay Maker's 2.0. Unity Discover also leads on update cadence (every 5 weeks vs every 6 months). Symbol Overlay Maker's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 16.0). On price, ratings volume, ads and device support there is nothing between them.

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

Unity Discover holds the better App Store score, 3.0 against 2.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

Symbol Overlay Maker ships an update every 6 months, Unity Discover every 5 weeks. The most recent releases landed on September 23, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Symbol Overlay Maker | Unity Discover |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (2 ratings)](https://appshunter.io/ios/app/symbol-overlay-maker/id1510255596/reviews) | **[3.0 (4 ratings)](https://appshunter.io/ios/app/unity-discover/id6739363565/reviews)** |
| Number of ratings | 2 | **4** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 142 MB | 1.7 GB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [AbleNet](https://appshunter.io/developer/390532170) | [Prentke Romich Company](https://appshunter.io/developer/474446992) |

## What reviewers say

### 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


### 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 Symbol Overlay Maker free?

Symbol Overlay Maker 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, Symbol Overlay Maker or Unity Discover?

Unity Discover is rated higher. Symbol Overlay Maker averages 2.0 out of 5 from 2 ratings, while Unity Discover averages 3.0 from 4 ratings.

### Do Symbol Overlay Maker or Unity Discover have ads?

Neither Symbol Overlay Maker nor Unity Discover shows ads.

### Which is updated more often, Symbol Overlay Maker or Unity Discover?

Symbol Overlay Maker ships an update every 6 months, and Unity Discover every 5 weeks. Most recently, Symbol Overlay Maker was updated on September 23, 2026 and Unity Discover on October 10, 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.*