# NailIT Interview Prep vs MathGrid 100

The clearest difference is in-app purchases: MathGrid 100 at none against NailIT Interview Prep's 4. NailIT Interview Prep's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. NailIT Interview Prep sells 4 one-off in-app purchases. MathGrid 100 asks for nothing beyond the download.

## The numbers

| Metric | NailIT Interview Prep | MathGrid 100 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | — | Every 3 weeks |
| Size | 19 MB | 40 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Arun Ramesh](https://appshunter.io/developer/1842541137) | [Hiroyuki Ishikawa](https://appshunter.io/developer/1876490408) |

## What reviewers say

### NailIT Interview Prep

[App page](https://appshunter.io/ios/app/nailit-interview-prep/id6753107453)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Tokens | $9.99 | one-time |
| Plus Tokens | $19.99 | one-time |
| Pro Tokens Pack | $39.99 | one-time |
| Power Tokens Pack | $79.99 | one-time |


### MathGrid 100

[App page](https://appshunter.io/ios/app/mathgrid-100/id6759038224)

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

**In-app purchases:** none


## Frequently asked questions

### Is NailIT Interview Prep free?

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

### Is MathGrid 100 free?

MathGrid 100 is free to download, with no in-app purchases.

### Do NailIT Interview Prep or MathGrid 100 have ads?

MathGrid 100 shows ads; NailIT Interview Prep does not.

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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.*