# Question Sleuth vs Main Idea

The clearest difference is rating: Question Sleuth at 5.0 against Main Idea's 4.3. Question Sleuth also leads on price ($1.99 vs $6.99) and iOS requirement (10.0 vs 12.2). Main Idea's advantage is update cadence (every 3 months vs every 29 months) and review sentiment (85% vs 67%). On ads, in-app purchases and monetization model there is nothing between them.

Question Sleuth costs $1.99 and Main Idea $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Question Sleuth holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 2 and 6 respectively. Written reviews complicate that: 67% of Question Sleuth's written reviews are positive against 85% of Main Idea's, so the app with the better star average is not the one people write more warmly about.

Question Sleuth ships an update every 29 months, Main Idea every 3 months. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Question Sleuth | Main Idea |
| --- | --- | --- |
| Price | **$1.99** | $6.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/question-sleuth/id563783795/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/main-ideasentences/id895686005/reviews) |
| Number of ratings | 2 | **6** |
| Positive reviews | 66.7% of reviews | **84.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Size | 118 MB | 22 MB |
| Requires iOS | **10.0** | 12.2 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zorten Software, LLC](https://appshunter.io/developer/412813738) | [Janine Toole](https://appshunter.io/developer/839832427) |

## What reviewers say

### Question Sleuth

[App page](https://appshunter.io/ios/app/question-sleuth/id563783795)

A language game for two or more players where one person hides a star behind a picture and others guess its location by asking questions. Customize categories and play for all ages, making it ideal for families and educators.

**Highlights:** Picture-based guessing game, Secret star hiding mechanic, Process of elimination gameplay, Customizable image categories, Use camera or web images, Suitable for all ages

**Features:** macOS Compatibility

**In-app purchases:** none


### Main Idea

[App page](https://appshunter.io/ios/app/main-ideasentences/id895686005)

This app helps children in grades 2-5 improve their reading comprehension by teaching them to identify the main idea of sentences. It uses a fun, game-like environment with step-by-step learning and a reward system to keep kids motivated.

**Highlights:** Step-by-step skill building, Incremental learning with unlocked levels, Frustration-free guided learning, Engaging reward center, Parental review and reporting, Over 600 examples, Timed levels for fluency

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Question Sleuth free?

Question Sleuth costs $1.99, with no in-app purchases.

### Is Main Idea free?

Main Idea costs $6.99, with no in-app purchases.

### Which has better reviews, Question Sleuth or Main Idea?

Question Sleuth is rated higher. Question Sleuth averages 5.0 out of 5 from 2 ratings, while Main Idea averages 4.3 from 6 ratings.

### Do Question Sleuth or Main Idea have ads?

Neither Question Sleuth nor Main Idea shows ads.

### Which is updated more often, Question Sleuth or Main Idea?

Question Sleuth ships an update every 29 months, and Main Idea every 3 months. Most recently, Question Sleuth was updated on October 2, 2026 and Main Idea on October 6, 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.*