# Jiu Jitsu Reference vs Grapple Flow

The clearest difference is in-app purchases: Jiu Jitsu Reference at none against Grapple Flow's 3. Grapple Flow's advantage is iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Grapple Flow sells 3 in-app purchases, starting at $2.99 per month. Jiu Jitsu Reference asks for nothing beyond the download.

Jiu Jitsu Reference ships an update monthly, Grapple Flow every 3 weeks. The most recent releases landed on September 30, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Jiu Jitsu Reference | Grapple Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/grapple-flow/id6762053033/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 73 MB | 15 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Eric Javier Hernandez Saura](https://appshunter.io/developer/1825081260) | [David McKay](https://appshunter.io/developer/1892684426) |

## What reviewers say

### Jiu Jitsu Reference

[App page](https://appshunter.io/ios/app/jiu-jitsu-reference/id6752857232)

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

**In-app purchases:** none


### Grapple Flow

[App page](https://appshunter.io/ios/app/grapple-flow/id6762053033)

Visualize grappling techniques and transitions across multiple martial arts styles. Explore interactive position maps, watch technique videos, and log your training sessions to track progress and identify patterns. Offers both free exploration and premium features for advanced training.

**Highlights:** Interactive position graph, Technique videos (255+), Multi-style support (BJJ, Judo, Wrestling, Sambo, Catch), Pre-built and custom technique chains, Training journal and progress tracking, Belt and rank tracking, Cloud sync across devices

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grapple Flow Premium | $2.99 | per month |
| Premium Annual | $39.99 | per year |
| Lifetime Founding Member | $79.99 | one-time |


## Frequently asked questions

### Is Jiu Jitsu Reference free?

Jiu Jitsu Reference is free to download, with no in-app purchases.

### Is Grapple Flow free?

Grapple Flow is free to download, with in-app purchases available.

### Do Jiu Jitsu Reference or Grapple Flow have ads?

Neither Jiu Jitsu Reference nor Grapple Flow shows ads.

### Which is updated more often, Jiu Jitsu Reference or Grapple Flow?

Jiu Jitsu Reference ships an update monthly, and Grapple Flow every 3 weeks. Most recently, Jiu Jitsu Reference was updated on September 30, 2026 and Grapple Flow on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*