# NN Nagi School vs TestZone Prep

The clearest difference is in-app purchases: NN Nagi School at none against TestZone Prep's 2. TestZone Prep's advantage is update cadence (every 10 days vs every 16 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TestZone Prep sells 2 in-app purchases, starting at $14.99 per month. NN Nagi School asks for nothing beyond the download.

NN Nagi School ships an update every 16 months, TestZone Prep every 10 days. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | NN Nagi School | TestZone Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/testzone-prep/id6785630212/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 47 MB | 37 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Excellogics Tech Solutions Private Limited](https://appshunter.io/developer/1666797422) | [LAZIZ RAKHMATOV](https://appshunter.io/developer/1878915886) |

## What reviewers say

### NN Nagi School

[App page](https://appshunter.io/ios/app/nn-nagi-school/id1666797420)

**Features:** macOS Compatibility

**In-app purchases:** none


### TestZone Prep

[App page](https://appshunter.io/ios/app/testzone-prep/id6785630212)

Prepare for various U.S. exams with this comprehensive study tool. Access practice questions, clear explanations, and realistic mock tests for licenses, permits, and certifications. Track your progress and review mistakes to build confidence for test day.

**Highlights:** Practice questions and explanations, Realistic mock exams, Mistake review and saving, Progress tracking reports, Multilingual support, Study anytime, anywhere

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $14.99 | per month |
| TestZone Yearly | $119.99 | per year |


## Frequently asked questions

### Is NN Nagi School free?

NN Nagi School is free to download, with no in-app purchases.

### Is TestZone Prep free?

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

### Do NN Nagi School or TestZone Prep have ads?

Neither NN Nagi School nor TestZone Prep shows ads.

### Which is updated more often, NN Nagi School or TestZone Prep?

NN Nagi School ships an update every 16 months, and TestZone Prep every 10 days. Most recently, NN Nagi School was updated on October 2, 2026 and TestZone Prep on October 1, 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.*