# OS Interview Questions vs Learn DBMS

The clearest difference is ads: Learn DBMS at none against OS Interview Questions's shown. Learn DBMS also leads on update cadence (every 16 months vs every 95 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. OS Interview Questions sells 1 one-off in-app purchase and Learn DBMS sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

OS Interview Questions ships an update every 95 months, Learn DBMS every 16 months. The most recent releases landed on September 28, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | OS Interview Questions | Learn DBMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/os-interview-questions/id1070986818/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 95 months | **Every 16 months** |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 28 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RAVINDHIRAN SUMITHRA](https://appshunter.io/developer/1571016391) | [Ghumman Tech LLC](https://appshunter.io/developer/1671347750) |

## What reviewers say

### OS Interview Questions

[App page](https://appshunter.io/ios/app/os-interview-questions/id1070986818)

Learn fundamental operating system concepts and interview questions with this educational app. It offers a user-friendly interface to explore topics, save favorites, and customize your reading experience. Sharpen your technical knowledge for career advancement.

**Highlights:** Operating system overview, Functions of operating systems, Types of operating systems, Embedded OS interview questions, User-friendly interface, Personalized library for favorites, Customizable themes and fonts

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OS Interview Questions | $3.99 | one-time |


### Learn DBMS

[App page](https://appshunter.io/ios/app/learn-dbms/id6446442808)

**Features:** macOS Compatibility

**In-app purchases (1)**

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


## Frequently asked questions

### Is OS Interview Questions free?

OS Interview Questions is free to download, with in-app purchases available.

### Is Learn DBMS free?

Learn DBMS is free to download, with in-app purchases available.

### Do OS Interview Questions or Learn DBMS have ads?

OS Interview Questions shows ads; Learn DBMS does not.

### Which is updated more often, OS Interview Questions or Learn DBMS?

OS Interview Questions ships an update every 95 months, and Learn DBMS every 16 months. Most recently, OS Interview Questions was updated on September 28, 2026 and Learn DBMS on September 25, 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.*