# Grey vs 99's Guide

The clearest difference is update cadence: 99's Guide at every 2 days against Grey's every 5 weeks. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Grey against 5.0 for 99's Guide. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

Grey ships an update every 5 weeks, 99's Guide every 2 days. The most recent releases landed on October 7, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Grey | 99's Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/grey-matter/id6793108037/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/99s-guide/id6800377299/reviews) |
| Number of ratings | 2 | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Monetization | Free | Free |
| Size | 97 MB | 17 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Saifuldeen Al-Bajjari](https://appshunter.io/developer/6776365056) | [MUSTAFA SAMAD](https://appshunter.io/developer/6800377301) |

## What reviewers say

### Grey

[App page](https://appshunter.io/ios/app/grey-matter/id6793108037)

This platform helps medical students study efficiently with organized question banks and an intuitive interface. It offers theoretical and practical learning, smart exam modes, and detailed explanations to prepare students for exams. Track your progress and personalize your study experience for confident exam preparation.

**Highlights:** Comprehensive medical question banks, Theoretical and practical learning, Smart exam modes, Detailed explanations, Performance analytics, Personalized study experience, Cloud synchronization

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

**In-app purchases:** none


### 99's Guide

[App page](https://appshunter.io/ios/app/99s-guide/id6800377299)

A medical study companion for University of Baghdad College of Medicine students. Access study materials, subject resources, and tests in an organized and efficient way to support your academic journey.

**Highlights:** Medical study materials, Subject resources, Tests, Student information, Organized interface, Efficient studying

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

**In-app purchases:** none


## Frequently asked questions

### Is Grey free?

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

### Is 99's Guide free?

99's Guide is free to download, with no in-app purchases.

### Which has better reviews, Grey or 99's Guide?

Grey and 99's Guide are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.

### Do Grey or 99's Guide have ads?

Neither Grey nor 99's Guide shows ads.

### Which is updated more often, Grey or 99's Guide?

Grey ships an update every 5 weeks, and 99's Guide every 2 days. Most recently, Grey was updated on October 7, 2026 and 99's Guide on October 19, 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.*