# Mentor Exam vs Prep DNB

The clearest difference is price: Mentor Exam at Free against Prep DNB's $0.99. Mentor Exam also leads on iOS requirement (13.0 vs 15.0). Prep DNB's advantage is update cadence (every 3 weeks vs every 2 months). On ads, in-app purchases and device support there is nothing between them.

Mentor Exam is free to download; Prep DNB costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mentor Exam ships an update every 2 months, Prep DNB every 3 weeks. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Mentor Exam | Prep DNB |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | 78.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 319 MB | 47 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Mari Poghosyan](https://appshunter.io/developer/1703983524) | [Sajil Haq](https://appshunter.io/developer/1887198954) |

## What reviewers say

### Mentor Exam

[App page](https://appshunter.io/ios/app/mentor-exam/id1572870557)

Access comprehensive exam preparation resources on the go. This app offers online courses, mock exams, question banks, and study materials for various undergraduate, postgraduate, and superspeciality training levels. It provides real exam simulation and conceptual teaching to help students succeed.

**Highlights:** Online courses, Mock exams with MCQs, Question banks, Theory and practical exam courses, Study material and notes, Real exam simulation, Conceptual teaching with examples

**In-app purchases:** none


### Prep DNB

[App page](https://appshunter.io/ios/app/prep-dnb/id6761892187)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mentor Exam free?

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

### Is Prep DNB free?

Prep DNB costs $0.99, with no in-app purchases.

### Do Mentor Exam or Prep DNB have ads?

Neither Mentor Exam nor Prep DNB shows ads.

### Which is updated more often, Mentor Exam or Prep DNB?

Mentor Exam ships an update every 2 months, and Prep DNB every 3 weeks. Most recently, Mentor Exam was updated on October 7, 2026 and Prep DNB on October 12, 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.*