# SD "What Are They Thinking?" vs BITS Lab

The clearest difference is review sentiment: BITS Lab at 67% against SD "What Are They Thinking?"'s 18%. BITS Lab also leads on price (Free vs $1.99) and rating (3.9 vs 1.6). SD "What Are They Thinking?"'s advantage is device support (3 vs 1). On ratings volume, ads, in-app purchases and iOS requirement there is nothing between them.

BITS Lab is free to download; SD "What Are They Thinking?" costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BITS Lab holds the better App Store score, 3.9 against 1.6. Both are backed by a comparable volume of ratings — 10 and 16 respectively. Written reviews point the same way: 18% of SD "What Are They Thinking?"'s written reviews are positive against 67% of BITS Lab's.

SD "What Are They Thinking?" ships an update every 9 months, BITS Lab every 2 months. The most recent releases landed on October 31, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | SD "What Are They Thinking?" | BITS Lab |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [1.6 (10 ratings)](https://appshunter.io/ios/app/sd-what-are-they-thinking/id439332859/reviews) | **[3.9 (16 ratings)](https://appshunter.io/ios/app/bits-lab-start/id1198658004/reviews)** |
| Number of ratings | 10 | **16** |
| Positive reviews | 17.6% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 36 MB | 66 MB |
| Requires iOS | 9.0 | 9.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Super Duper Publications](https://appshunter.io/developer/427263142) | [Tara McAllister](https://appshunter.io/developer/1198658003) |

## What reviewers say

### SD "What Are They Thinking?"

[App page](https://appshunter.io/ios/app/sd-what-are-they-thinking/id439332859)

This educational app uses photo flashcards to help students improve inferencing, reasoning, and conversational skills. Users can hear thoughts from characters in the images and track student responses to assess understanding. It's designed to enhance storytelling, sentence length, and grammatical structures.

**Highlights:** 60 photo flashcards, Inferencing and reasoning practice, Conversational skill development, Track correct/incorrect responses, Print or email data, Auto-advance options

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

**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 SD "What Are They Thinking?" free?

SD "What Are They Thinking?" 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, SD "What Are They Thinking?" or BITS Lab?

BITS Lab is rated higher. SD "What Are They Thinking?" averages 1.6 out of 5 from 10 ratings, while BITS Lab averages 3.9 from 16 ratings.

### Do SD "What Are They Thinking?" or BITS Lab have ads?

Neither SD "What Are They Thinking?" nor BITS Lab shows ads.

### Which is updated more often, SD "What Are They Thinking?" or BITS Lab?

SD "What Are They Thinking?" ships an update every 9 months, and BITS Lab every 2 months. Most recently, SD "What Are They Thinking?" was updated on October 31, 2026 and BITS Lab on October 26, 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.*