# RadSounds Cause/Effect vs Grid for iPad

The clearest difference is price: Grid for iPad at Free against RadSounds Cause/Effect's $1.99. Grid for iPad also leads on update cadence (fortnightly vs every 11 months) and ratings volume (18 vs 2). RadSounds Cause/Effect's advantage is rating (4.5 vs 3.6) and in-app purchases (none vs 4). On ads and device support there is nothing between them.

Grid for iPad is free to download; RadSounds Cause/Effect costs $1.99 up front. Grid for iPad sells 4 in-app purchases, starting at $10.99 per month. RadSounds Cause/Effect asks for nothing beyond the download.

RadSounds Cause/Effect holds the better App Store score, 4.5 against 3.6. That said, the two scores are not equally well evidenced: Grid for iPad has 18 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 78% of RadSounds Cause/Effect's written reviews are positive against 50% of Grid for iPad's.

RadSounds Cause/Effect ships an update every 11 months, Grid for iPad fortnightly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | RadSounds Cause/Effect | Grid for iPad |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/radsounds-causeeffect/id420977569/reviews)** | [3.6 (18 ratings)](https://appshunter.io/ios/app/grid-for-ipad-aac/id1064332378/reviews) |
| Number of ratings | 2 | **18** |
| Positive reviews | **77.8% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 121 MB | 1.4 GB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [RJ Cooper & Associates, Inc.](https://appshunter.io/developer/412790299) | [Smartbox Assistive Technology](https://appshunter.io/developer/1064332377) |

## What reviewers say

### RadSounds Cause/Effect

[App page](https://appshunter.io/ios/app/radsounds-causeeffect/id420977569)

This music program allows users to create custom playlists by recording, importing, or using provided songs. It offers multiple playback modes and is switch-friendly for individuals with physical challenges.

**Highlights:** Customizable music playlists, Record or import audio, Momentary playback mode, Timed playback mode, Advanced playlist cycling, Switch-friendly access

**Features:** macOS Compatibility

**In-app purchases:** none


### Grid for iPad

[App page](https://appshunter.io/ios/app/grid-for-ipad-aac/id1064332378)

This app provides a comprehensive Augmentative and Alternative Communication (AAC) solution for individuals with diverse communication needs. It offers flexible tools, evidence-based resources, and customizable features that adapt as users' needs evolve.

**Highlights:** Evidence-based AAC resources, Online community grid sets, In-app and remote editing, AI-powered design tools, Multiple symbol libraries, Multilingual support, Pre-built communication resources

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grid for iPad Subscription | $10.99 | per month |
| Metacom Symbol Library | $49.99 | one-time |
| PODD for Grid (English) | $99.00 | one-time |
| Grid for iPad full licence | $299.99 | one-time |


## Frequently asked questions

### Is RadSounds Cause/Effect free?

RadSounds Cause/Effect costs $1.99, with no in-app purchases.

### Is Grid for iPad free?

Grid for iPad is free to download, with in-app purchases available.

### Which has better reviews, RadSounds Cause/Effect or Grid for iPad?

RadSounds Cause/Effect is rated higher. RadSounds Cause/Effect averages 4.5 out of 5 from 2 ratings, while Grid for iPad averages 3.6 from 18 ratings.

### Do RadSounds Cause/Effect or Grid for iPad have ads?

Neither RadSounds Cause/Effect nor Grid for iPad shows ads.

### Which is updated more often, RadSounds Cause/Effect or Grid for iPad?

RadSounds Cause/Effect ships an update every 11 months, and Grid for iPad fortnightly. Most recently, RadSounds Cause/Effect was updated on October 23, 2026 and Grid for iPad 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.*