# BATI Interview Techniques vs Tonspur

The clearest difference is in-app purchases: BATI Interview Techniques at none against Tonspur's 1. BATI Interview Techniques also leads on rating (5.0 vs 4.7) and iOS requirement (16.4 vs 26.1). Tonspur's advantage is ratings volume (6 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Tonspur sells 1 one-off in-app purchase. BATI Interview Techniques asks for nothing beyond the download.

BATI Interview Techniques holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Tonspur has 6 ratings behind it against 1, so its average is the more settled of the two.

BATI Interview Techniques ships an update fortnightly, Tonspur every 3 weeks. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | BATI Interview Techniques | Tonspur |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bati-interview-techniques/id6469439424/reviews)** | [4.7 (6 ratings)](https://appshunter.io/ios/app/tonspur/id6739758347/reviews) |
| Number of ratings | 1 | **6** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 46 MB | 32 MB |
| Requires iOS | **16.4** | 26.1 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [QUESTION MARK MEDIA LLC](https://appshunter.io/developer/1108323545) | [Tim Olbrich](https://appshunter.io/developer/1623192062) |

## 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


### Tonspur

[App page](https://appshunter.io/ios/app/tonspur/id6739758347)

Listen to your personal audiobook collection with this companion app. Enjoy features like adjustable playback speed, a sleep timer, and easy chapter navigation. Download books for offline listening and sync your progress across devices.

**Highlights:** Variable playback speed, Sleep timer, Offline listening, Chapter navigation, Progress syncing, CarPlay support, Multi-library support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Downloads | $8.99 | one-time |


## Frequently asked questions

### Is BATI Interview Techniques free?

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

### Is Tonspur free?

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

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

BATI Interview Techniques is rated higher. BATI Interview Techniques averages 5.0 out of 5 from 1 ratings, while Tonspur averages 4.7 from 6 ratings.

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

Neither BATI Interview Techniques nor Tonspur shows ads.

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

BATI Interview Techniques ships an update fortnightly, and Tonspur every 3 weeks. Most recently, BATI Interview Techniques was updated on October 7, 2026 and Tonspur on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*