# BATI Interview Techniques vs SoundLeaf

The clearest difference is rating: BATI Interview Techniques at 5.0 against SoundLeaf's 4.3. BATI Interview Techniques also leads on in-app purchases (none vs 2). SoundLeaf's advantage is ratings volume (20 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SoundLeaf sells 2 in-app purchases, starting at $19.99 per year. BATI Interview Techniques asks for nothing beyond the download.

BATI Interview Techniques holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: SoundLeaf has 20 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on August 30, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | BATI Interview Techniques | SoundLeaf |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bati-interview-techniques/id6469439424/reviews)** | [4.3 (20 ratings)](https://appshunter.io/ios/app/soundleaf/id6738635634/reviews) |
| Number of ratings | 1 | **20** |
| Positive reviews | — | 65.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 46 MB | 36 MB |
| Requires iOS | **16.4** | 17.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [QUESTION MARK MEDIA LLC](https://appshunter.io/developer/1108323545) | [Hemant Kumar](https://appshunter.io/developer/1781589937) |

## What reviewers say

### BATI Interview Techniques

[App page](https://appshunter.io/ios/app/bati-interview-techniques/id6469439424)

This app provides companion materials for a Behavior Analysis Training course on investigative interviewing. It offers in-app review of documents, printable course materials, and tools for practicing personal history taking and subject interview assessment. Course registration is required to access content.

**Highlights:** In-app document review, Printable course materials, Personal history practice tool, Subject interview assessment tool, Companion to Behavior Analysis Training

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

**In-app purchases:** none


### SoundLeaf

[App page](https://appshunter.io/ios/app/soundleaf/id6738635634)

This app provides a premium iOS client for the open-source Audiobookshelf server. It offers a beautiful, intuitive interface for listening to your personal audiobook collection with features like CarPlay support and offline downloads.

**Highlights:** CarPlay support, Connect to Audiobookshelf server, Intuitive library browsing, Variable playback speed, Offline listening, Smart sleep timer, Cross-device progress tracking

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SoundLeaf Supporter | $19.99 | per year |
| Pro | $9.99 | one-time |


## Frequently asked questions

### Is BATI Interview Techniques free?

BATI Interview Techniques is free to download, with no in-app purchases.

### Is SoundLeaf free?

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

### Which has better reviews, BATI Interview Techniques or SoundLeaf?

BATI Interview Techniques is rated higher. BATI Interview Techniques averages 5.0 out of 5 from 1 ratings, while SoundLeaf averages 4.3 from 20 ratings.

### Do BATI Interview Techniques or SoundLeaf have ads?

Neither BATI Interview Techniques nor SoundLeaf shows ads.

### Which is updated more often, BATI Interview Techniques or SoundLeaf?

BATI Interview Techniques ships an update fortnightly, and SoundLeaf fortnightly. Most recently, BATI Interview Techniques was updated on August 30, 2026 and SoundLeaf on September 22, 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.*