# RadSounds Cause/Effect Lite vs Cosmo Learning

The clearest difference is rating: RadSounds Cause/Effect Lite at 5.0 against Cosmo Learning's 2.3. RadSounds Cause/Effect Lite also leads on monetization model (free vs free with in-app purchases) and iOS requirement (8.0 vs 15.0). Cosmo Learning's advantage is update cadence (weekly vs every 11 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. RadSounds Cause/Effect Lite sells 1 one-off in-app purchase and Cosmo Learning sells 4 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

RadSounds Cause/Effect Lite holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

RadSounds Cause/Effect Lite ships an update every 11 months, Cosmo Learning weekly. The most recent releases landed on September 29, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | RadSounds Cause/Effect Lite | Cosmo Learning |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/radsounds-causeeffect-lite/id521282295/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/cosmo-learning/id1150386521/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 114 MB | 384 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [RJ Cooper & Associates, Inc.](https://appshunter.io/developer/412790299) | [Filisia Interfaces Ltd.](https://appshunter.io/developer/1150383520) |

## What reviewers say

### RadSounds Cause/Effect Lite

[App page](https://appshunter.io/ios/app/radsounds-causeeffect-lite/id521282295)

This educational app allows users to create custom music playlists by recording, importing, or using provided songs. It offers various playback modes, including momentary, timed, and playlist cycling, and is switch-friendly for users with physical challenges.

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

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RadSounds Full Upgrade | $4.99 | one-time |


### Cosmo Learning

[App page](https://appshunter.io/ios/app/cosmo-learning/id1150386521)

This app provides an interactive learning and therapy ecosystem for children with special educational needs and in early years. It uses multisensory controllers and engaging activities to foster motor, cognitive, and communication skill development through play, music, and movement.

**Highlights:** Interactive learning ecosystem, Therapy activities, Multisensory controller integration, Motor skill development, Cognitive skill development, Communication skill development, Purposeful play and music

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cosmo All Activities Digital | $24.99 | per month |
| Cosmo Pro Digital | $34.99 | per month |
| Cosmo All Activities Digital | $239.99 | per year |
| Cosmo Pro Digital | $349.99 | per year |


## Frequently asked questions

### Is RadSounds Cause/Effect Lite free?

RadSounds Cause/Effect Lite is free to download, with in-app purchases available.

### Is Cosmo Learning free?

Cosmo Learning is free to download, with in-app purchases available.

### Which has better reviews, RadSounds Cause/Effect Lite or Cosmo Learning?

RadSounds Cause/Effect Lite is rated higher. RadSounds Cause/Effect Lite averages 5.0 out of 5 from 2 ratings, while Cosmo Learning averages 2.3 from 3 ratings.

### Do RadSounds Cause/Effect Lite or Cosmo Learning have ads?

Neither RadSounds Cause/Effect Lite nor Cosmo Learning shows ads.

### Which is updated more often, RadSounds Cause/Effect Lite or Cosmo Learning?

RadSounds Cause/Effect Lite ships an update every 11 months, and Cosmo Learning weekly. Most recently, RadSounds Cause/Effect Lite was updated on September 29, 2026 and Cosmo Learning on October 8, 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.*