# RadSounds Cause/Effect vs BITS Lab

The clearest difference is price: BITS Lab at Free against RadSounds Cause/Effect's $1.99. BITS Lab also leads on update cadence (every 2 months vs every 11 months) and ratings volume (14 vs 1). RadSounds Cause/Effect's advantage is rating (5.0 vs 4.2) and review sentiment (78% vs 67%). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

BITS Lab is free to download; RadSounds Cause/Effect costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RadSounds Cause/Effect holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: BITS Lab has 14 ratings behind it against 1, 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 67% of BITS Lab's.

RadSounds Cause/Effect ships an update every 11 months, BITS Lab every 2 months. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | RadSounds Cause/Effect | BITS Lab |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/radsounds-causeeffect/id420977569/reviews)** | [4.2 (14 ratings)](https://appshunter.io/ios/app/bits-lab-start/id1198658004/reviews) |
| Number of ratings | 1 | **14** |
| Positive reviews | **77.8% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 121 MB | 66 MB |
| Requires iOS | 9.0 | 9.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [RJ Cooper & Associates, Inc.](https://appshunter.io/developer/412790299) | [Tara McAllister](https://appshunter.io/developer/1198658003) |

## 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


### BITS Lab

[App page](https://appshunter.io/ios/app/bits-lab-start/id1198658004)

This app uses visual biofeedback to help users, particularly children and adolescents, correct speech errors related to the American English 'r' sound. It offers guided practice, adaptive challenges, and progress tracking for effective speech therapy.

**Highlights:** Visual biofeedback for speech correction, Tutorial for biofeedback interpretation, Free play mode for 'r' practice, Adaptive quest mode for increasing difficulty, Quiz mode for progress tracking, Visual rewards for improvement, Clinician dashboard for progress monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RadSounds Cause/Effect free?

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

### Is BITS Lab free?

BITS Lab is free to download, with no in-app purchases.

### Which has better reviews, RadSounds Cause/Effect or BITS Lab?

RadSounds Cause/Effect is rated higher. RadSounds Cause/Effect averages 5.0 out of 5 from 1 ratings, while BITS Lab averages 4.2 from 14 ratings.

### Do RadSounds Cause/Effect or BITS Lab have ads?

Neither RadSounds Cause/Effect nor BITS Lab shows ads.

### Which is updated more often, RadSounds Cause/Effect or BITS Lab?

RadSounds Cause/Effect ships an update every 11 months, and BITS Lab every 2 months. Most recently, RadSounds Cause/Effect was updated on October 2, 2026 and BITS Lab on October 11, 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.*