# DJ Math vs Learn Objective C Programming

The clearest difference is price: DJ Math at Free against Learn Objective C Programming's $1.99. DJ Math also leads on update cadence (daily vs every 20 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

DJ Math is free to download; Learn Objective C Programming costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DJ Math ships an update daily, Learn Objective C Programming every 20 months. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | DJ Math | Learn Objective C Programming |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 20 months |
| Size | 26 MB | 35 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Compiled](https://appshunter.io/developer/520829733) | [Muhammad Mubeen](https://appshunter.io/developer/1553722821) |

## What reviewers say

### DJ Math

[App page](https://appshunter.io/ios/app/dj-math/id6449684854)

**In-app purchases:** none


### Learn Objective C Programming

[App page](https://appshunter.io/ios/app/learn-objective-c-programming/id6738732599)

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

**In-app purchases:** none


## Frequently asked questions

### Is DJ Math free?

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

### Is Learn Objective C Programming free?

Learn Objective C Programming costs $1.99, with no in-app purchases.

### Do DJ Math or Learn Objective C Programming have ads?

Neither DJ Math nor Learn Objective C Programming shows ads.

### Which is updated more often, DJ Math or Learn Objective C Programming?

DJ Math ships an update daily, and Learn Objective C Programming every 20 months. Most recently, DJ Math was updated on October 4, 2026 and Learn Objective C Programming 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.*