# BITS Lab vs LispApp

The clearest difference is in-app purchases: BITS Lab at none against LispApp's 1. BITS Lab also leads on iOS requirement (9.0 vs 13.0). LispApp's advantage is update cadence (every 11 days vs every 2 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. LispApp sells 1 in-app purchase, starting at $34.99 per month. BITS Lab asks for nothing beyond the download.

BITS Lab ships an update every 2 months, LispApp every 11 days. The most recent releases landed on October 11, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | BITS Lab | LispApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (14 ratings)](https://appshunter.io/ios/app/bits-lab-start/id1198658004/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | Free | — |
| Size | 66 MB | 145 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tara McAllister](https://appshunter.io/developer/1198658003) | [ArraTreeni Oy](https://appshunter.io/developer/1345435068) |

## What reviewers say

### 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


### LispApp

[App page](https://appshunter.io/ios/app/lispapp-language-therapy/id6743806577)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LispApp monthly subscription. | $34.99 | per month |


## Frequently asked questions

### Is BITS Lab free?

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

### Is LispApp free?

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

### Do BITS Lab or LispApp have ads?

Neither BITS Lab nor LispApp shows ads.

### Which is updated more often, BITS Lab or LispApp?

BITS Lab ships an update every 2 months, and LispApp every 11 days. Most recently, BITS Lab was updated on October 11, 2026 and LispApp on September 28, 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.*