# AOJ+ vs 라운드제로(RoundZero)

The clearest difference is in-app purchases: 라운드제로(RoundZero) at none against AOJ+'s 14. 라운드제로(RoundZero) also leads on update cadence (every 4 days vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AOJ+ sells 14 in-app purchases, starting at $24.99 per month. 라운드제로(RoundZero) asks for nothing beyond the download.

AOJ+ ships an update every 5 weeks, 라운드제로(RoundZero) every 4 days. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | AOJ+ | 라운드제로(RoundZero) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (397 ratings)](https://appshunter.io/ios/app/aoj-plus/id1614908996/reviews)** | — |
| Number of ratings | **397** | — |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 63 MB | 51 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mendes Bros, Inc](https://appshunter.io/developer/1614908998) | [kwang min bae](https://appshunter.io/developer/1867694419) |

## What reviewers say

### AOJ+

[App page](https://appshunter.io/ios/app/aoj-plus/id1614908996)

Access a vast library of martial arts instructionals, sparring footage, and exclusive interviews. Learn from world-class instructors in an immersive, cinematic experience. Stream anytime, anywhere on your device.

**Highlights:** Thousands of technique instructionals, Hours of sparring and drilling footage, Exclusive interviews, Behind-the-scenes content, World-class instructors, Cinematic presentation

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $24.99 | per month |
| 3 Month Subscription | $74.99 | per 3 months |
| 6 Month Subscription | $139.99 | per 6 months |
| 12 Month Subscription | $249.99 | per year |
| Content Tier $49.99 | $49.99 | one-time |
| Content Tier $59.99 | $59.99 | one-time |
| Content Tier $99.99 | $99.99 | one-time |
| Content Tier $149.99 | $149.99 | one-time |
| Content Tier $179.99 | $179.99 | one-time |
| Content Tier $199.99 | $199.99 | one-time |
| Content Tier $219.99 | $219.99 | one-time |
| Content Tier $229.99 | $229.99 | one-time |
| Content Tier $249.99 | $249.99 | one-time |
| Content Tier $349.99 | $349.99 | one-time |

**What reviewers like**

- 💎 High quality instruction and content
- ✨ Crystal clear, HD videos
- 📚 Thorough and regularly updated content
- 💡 Immersive learning experience
- 🏆 Instrumental in practitioner development and success

**What reviewers complain about**

- 🐛 Search function is useless
- 📉 Only showing a handful of videos
- ⏳ Potential server issues affecting content availability

**Reported bugs**

- Search function does not return relevant results
- App initially shows very few videos, potentially due to server issues

**Requested features**

- Increase variety in fundamentals/curriculum/technique sections
- Create training modules for progressive learning
- Add more non-technique videos, such as athlete stories


### 라운드제로(RoundZero)

[App page](https://appshunter.io/ios/app/roundzero/id6757588010)

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

**In-app purchases:** none


## Frequently asked questions

### Is AOJ+ free?

AOJ+ is free to download, with in-app purchases available.

### Is 라운드제로(RoundZero) free?

라운드제로(RoundZero) is free to download, with no in-app purchases.

### Do AOJ+ or 라운드제로(RoundZero) have ads?

Neither AOJ+ nor 라운드제로(RoundZero) shows ads.

### Which is updated more often, AOJ+ or 라운드제로(RoundZero)?

AOJ+ ships an update every 5 weeks, and 라운드제로(RoundZero) every 4 days. Most recently, AOJ+ was updated on October 13, 2026 and 라운드제로(RoundZero) on September 29, 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.*