# Data Training vs Interview Master

The clearest difference is update cadence: Interview Master at fortnightly against Data Training's every 5 weeks. Interview Master also leads on iOS requirement (12.0 vs 15.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Data Training sells 3 one-off in-app purchases and Interview Master sells 1 in-app purchase, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Data Training ships an update every 5 weeks, Interview Master fortnightly. The most recent releases landed on September 10, 2026 and June 9, 2026 respectively.

## The numbers

| Metric | Data Training | Interview Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (8 ratings)](https://appshunter.io/ios/app/interview-master-data-science/id6472814256/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 87.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 110 MB | 36 MB |
| Requires iOS | 15.2 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Data Training GmbH](https://appshunter.io/developer/1656379458) | [Wowso Inc.](https://appshunter.io/developer/1385658786) |

## What reviewers say

### Data Training

[App page](https://appshunter.io/ios/app/data-training/id6444720197)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| How to Power BI Files | Free | one-time |
| Power BI Level 1.0 | Free | one-time |
| Tableau Level 1.0 | Free | one-time |


### Interview Master

[App page](https://appshunter.io/ios/app/interview-master-data-science/id6472814256)

Practice data science interviews with AI-powered simulations and daily quizzes. Receive instant feedback on your answers and track your progress to build confidence and deepen your understanding of complex topics.

**Highlights:** Real-time AI interview simulations, AI-evaluated daily quizzes, Instant feedback on answers, Progress tracking, Detailed question explanations, Community sharing features

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IM: Data Science | $3.99 | per month |


## Frequently asked questions

### Is Data Training free?

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

### Is Interview Master free?

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

### Do Data Training or Interview Master have ads?

Neither Data Training nor Interview Master shows ads.

### Which is updated more often, Data Training or Interview Master?

Data Training ships an update every 5 weeks, and Interview Master fortnightly. Most recently, Data Training was updated on September 10, 2026 and Interview Master on June 9, 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.*