# Question Sleuth vs Phono Learning Center

The clearest difference is price: Question Sleuth at $1.99 against Phono Learning Center's $19.99. Question Sleuth also leads on rating (5.0 vs 4.3) and iOS requirement (10.0 vs 15.6). Phono Learning Center's advantage is update cadence (every 7 months vs every 29 months). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Question Sleuth costs $1.99 and Phono Learning Center $19.99 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 4 respectively. Written reviews split almost evenly too, at 67% and 67% positive.

Question Sleuth ships an update every 29 months, Phono Learning Center every 7 months. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Question Sleuth | Phono Learning Center |
| --- | --- | --- |
| Price | **$1.99** | $19.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/question-sleuth/id563783795/reviews)** | [4.3 (4 ratings)](https://appshunter.io/ios/app/phono-learning-center/id652825600/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | 66.7% of reviews | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 7 months** |
| Monetization | Paid | Paid |
| Size | 118 MB | 132 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zorten Software, LLC](https://appshunter.io/developer/412813738) | [Smarty Ears](https://appshunter.io/developer/348779167) |

## 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


### Phono Learning Center

[App page](https://appshunter.io/ios/app/phono-learning-center/id652825600)

This research-based speech therapy app helps children with sound system disorders improve their speech intelligibility. It utilizes engaging games and structured activities based on the evidence-based Cycles Approach, designed by a certified speech-language pathologist.

**Highlights:** Research-based Cycles Approach, Engaging and structured activities, Individual and group data tracking, Customizable scoring systems, Printable homework sheets, Word, phrase, and sentence levels

**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 Phono Learning Center free?

Phono Learning Center costs $19.99, with no in-app purchases.

### Which has better reviews, Question Sleuth or Phono Learning Center?

Question Sleuth is rated higher. Question Sleuth averages 5.0 out of 5 from 2 ratings, while Phono Learning Center averages 4.3 from 4 ratings.

### Do Question Sleuth or Phono Learning Center have ads?

Neither Question Sleuth nor Phono Learning Center shows ads.

### Which is updated more often, Question Sleuth or Phono Learning Center?

Question Sleuth ships an update every 29 months, and Phono Learning Center every 7 months. Most recently, Question Sleuth was updated on October 2, 2026 and Phono Learning Center on September 29, 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.*