# Prepare for mobile Interview vs InterviewOS

The clearest difference is in-app purchases: InterviewOS at none against Prepare for mobile Interview's 1. Prepare for mobile Interview's advantage is iOS requirement (18.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Prepare for mobile Interview sells 1 one-off in-app purchase. InterviewOS asks for nothing beyond the download.

Prepare for mobile Interview ships an update weekly, InterviewOS every 3 days. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Prepare for mobile Interview | InterviewOS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Size | 10 MB | 6 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alexey Barinov](https://appshunter.io/developer/1502957852) | [Elbek Mirzamaxmudov](https://appshunter.io/developer/1861371580) |

## What reviewers say

### Prepare for mobile Interview

[App page](https://appshunter.io/ios/app/prepare-for-mobile-interview/id6756423817)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### InterviewOS

[App page](https://appshunter.io/ios/app/interviewos/id6756553689)

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

**In-app purchases:** none


## Frequently asked questions

### Is Prepare for mobile Interview free?

Prepare for mobile Interview is free to download, with in-app purchases available.

### Is InterviewOS free?

InterviewOS is free to download, with no in-app purchases.

### Do Prepare for mobile Interview or InterviewOS have ads?

Neither Prepare for mobile Interview nor InterviewOS shows ads.

### Which is updated more often, Prepare for mobile Interview or InterviewOS?

Prepare for mobile Interview ships an update weekly, and InterviewOS every 3 days. Most recently, Prepare for mobile Interview was updated on September 17, 2026 and InterviewOS on September 20, 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.*