# Prepare for mobile Interview vs Callback

The clearest difference is in-app purchases: Callback at none against Prepare for mobile Interview's 1. On price, ads, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | Prepare for mobile Interview | Callback |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | — |
| Size | 10 MB | 2 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alexey Barinov](https://appshunter.io/developer/1502957852) | [Vladimir Babin](https://appshunter.io/developer/1557125814) |

## 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 |


### Callback

[App page](https://appshunter.io/ios/app/callback-interview-prep/id6796242315)

**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 Callback free?

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

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

Neither Prepare for mobile Interview nor Callback shows ads.

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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.*