# Interview Question PRO vs AlgoNinja

The clearest difference is in-app purchases: AlgoNinja at none against Interview Question PRO's 1. Interview Question PRO's advantage is iOS requirement (12.0 vs 17.5). On price, ads and device support there is nothing between them.

Both are free to download. Interview Question PRO sells 1 one-off in-app purchase. AlgoNinja asks for nothing beyond the download.

## The numbers

| Metric | Interview Question PRO | AlgoNinja |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 68 MB | 4 MB |
| Requires iOS | **12.0** | 17.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Mammoth Interactive INC](https://appshunter.io/developer/432944712) | [Aleksandr Titov](https://appshunter.io/developer/1737349347) |

## What reviewers say

### Interview Question PRO

[App page](https://appshunter.io/ios/app/interview-question-pro/id6444463643)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $9.99 | one-time |


### AlgoNinja

[App page](https://appshunter.io/ios/app/algoninja/id6639586961)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Interview Question PRO free?

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

### Is AlgoNinja free?

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

### Do Interview Question PRO or AlgoNinja have ads?

Neither Interview Question PRO nor AlgoNinja 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.*