# BJJ Master App by Grapplearts vs Ossify

The clearest difference is in-app purchases: Ossify at none against BJJ Master App by Grapplearts's 10. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. BJJ Master App by Grapplearts sells 10 one-off in-app purchases. Ossify asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | BJJ Master App by Grapplearts | Ossify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (73 ratings)](https://appshunter.io/ios/app/bjj-master-app-by-grapplearts/id1308072068/reviews)** | — |
| Number of ratings | **73** | — |
| Positive reviews | 81.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 53 MB | 50 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Grapplearts Enterprises Inc.](https://appshunter.io/developer/539545697) | [PIOTR PESTKA](https://appshunter.io/developer/1840009215) |

## What reviewers say

### BJJ Master App by Grapplearts

[App page](https://appshunter.io/ios/app/bjj-master-app-by-grapplearts/id1308072068)

Learn essential Brazilian Jiu-Jitsu techniques with comprehensive instructionals. Develop confidence in all aspects of ground fighting and grappling. This app provides a structured plan to master BJJ, making it accessible for self-defense and competition.

**Highlights:** Learn BJJ techniques, Instructionals from Grapplearts.com, Develop grappling confidence, Master ground fighting, Submission grappling techniques, Structured learning plan

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grapplearts Submission Defense | $3.99 | one-time |
| Grapplearts BJJ Submissions | $3.99 | one-time |
| Grapplearts BJJ Guard Sweeps | $3.99 | one-time |
| 7 Days to Better Guard Sweeps | $6.99 | one-time |
| Self Defense Guard - Bundle | $29.99 | one-time |
| BJJ Formula - Bundle | $59.99 | one-time |
| Pressure Passing (Bundle) | $59.99 | one-time |
| Bigger, Stronger 1 - Bundle | $69.99 | one-time |
| BJJ for Old F***s - Bundle | $79.99 | one-time |
| Modern Leglock Formula Bundle | $89.99 | one-time |

**What reviewers like**

- 👍 Great instructor and content
- 👍 Clear and detailed instruction
- 👍 Well-organized app
- 👍 Good value for money
- 👍 Excellent customer support

**What reviewers complain about**

- 🐛 Lost access to purchased content
- 🐛 Cannot restore purchases
- 🐛 App not functioning as expected
- 🐛 Poorly executed 'all-in-one' app
- 🐛 No response from customer service

**Reported bugs**

- Lost in app purchases during update
- Lost access to purchased volumes after upgrade
- No previously purchased apps loaded
- No option to restore purchases
- Cannot get previously purchased apps onto the 'All in one' app

**Requested features**

- Make paid content available offline
- Add takedown techniques
- Include free modules with basic techniques
- Fix sound issues on iPhone


### Ossify

[App page](https://appshunter.io/ios/app/ossify/id6752580973)

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

**In-app purchases:** none


## Frequently asked questions

### Is BJJ Master App by Grapplearts free?

BJJ Master App by Grapplearts is free to download, with in-app purchases available.

### Is Ossify free?

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

### Do BJJ Master App by Grapplearts or Ossify have ads?

Neither BJJ Master App by Grapplearts nor Ossify shows ads.

### Which is updated more often, BJJ Master App by Grapplearts or Ossify?

BJJ Master App by Grapplearts ships an update every 3 weeks, and Ossify every 3 weeks. Most recently, BJJ Master App by Grapplearts was updated on November 2, 2026 and Ossify on October 30, 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.*