# USC 49 vs BATI Interview Techniques

The clearest difference is in-app purchases: BATI Interview Techniques at none against USC 49's 3. BATI Interview Techniques also leads on update cadence (fortnightly vs every 16 months). USC 49's advantage is iOS requirement (12.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. USC 49 sells 3 one-off in-app purchases. BATI Interview Techniques asks for nothing beyond the download.

USC 49 ships an update every 16 months, BATI Interview Techniques fortnightly. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | USC 49 | BATI Interview Techniques |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bati-interview-techniques/id6469439424/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 16 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 78 MB | 46 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lyker Labs LLC](https://appshunter.io/developer/891194494) | [QUESTION MARK MEDIA LLC](https://appshunter.io/developer/1108323545) |

## What reviewers say

### USC 49

[App page](https://appshunter.io/ios/app/usc-49-transportation/id1557891507)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| USC Title 49 | $4.99 | one-time |
| USC Title 49 | $12.99 | one-time |
| USC Title 49 | $44.99 | one-time |


### 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


## Frequently asked questions

### Is USC 49 free?

USC 49 is free to download, with in-app purchases available.

### Is BATI Interview Techniques free?

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

### Do USC 49 or BATI Interview Techniques have ads?

Neither USC 49 nor BATI Interview Techniques shows ads.

### Which is updated more often, USC 49 or BATI Interview Techniques?

USC 49 ships an update every 16 months, and BATI Interview Techniques fortnightly. Most recently, USC 49 was updated on November 7, 2026 and BATI Interview Techniques on November 3, 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.*