# K2XFIT vs GrappleDex

The clearest difference is in-app purchases: K2XFIT at none against GrappleDex's 1. K2XFIT also leads on device support (4 vs 2). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. GrappleDex sells 1 in-app purchase, starting at $2.99 per month. K2XFIT asks for nothing beyond the download.

K2XFIT ships an update every 2 months, GrappleDex monthly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | K2XFIT | GrappleDex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/grappledex-your-bjj-tracker/id6753132558/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Freemium |
| Size | 194 MB | 69 MB |
| Requires iOS | 15.5 | **15.1** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [K2 Martial Arts and Fitness Inc](https://appshunter.io/developer/1521930495) | [Aoshen Zhou](https://appshunter.io/developer/1814075873) |

## What reviewers say

### K2XFIT

[App page](https://appshunter.io/ios/app/k2xfit/id1521930493)

Track your workouts, meals, and progress towards fitness goals with personalized coaching. Schedule activities, monitor body measurements, and receive reminders. Connect wearable devices for seamless data syncing.

**Highlights:** Workout tracking, Meal logging, Progress monitoring, Personalized coaching, Body measurement tracking, Wearable device integration, Real-time messaging

**Features:** Apple Wallet

**In-app purchases:** none


### GrappleDex

[App page](https://appshunter.io/ios/app/grappledex-your-bjj-tracker/id6753132558)

Log your Brazilian Jiu-Jitsu training sessions to track progress and understand your game. Set training focuses, review past sessions, and identify patterns in your techniques and positions. Stay consistent with reminders and weekly summaries.

**Highlights:** Log BJJ sessions with positions, techniques, and notes, Tag sessions as Gi or No-Gi, Search training history instantly, Set session focus and track accountability, Visualize progress with heatmaps and graphs, Compare related sessions for pattern identification, Weekly summaries and logging reminders

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GrappleDex Pro | $2.99 | per month |


## Frequently asked questions

### Is K2XFIT free?

K2XFIT is free to download, with no in-app purchases.

### Is GrappleDex free?

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

### Do K2XFIT or GrappleDex have ads?

Neither K2XFIT nor GrappleDex shows ads.

### Which is updated more often, K2XFIT or GrappleDex?

K2XFIT ships an update every 2 months, and GrappleDex monthly. Most recently, K2XFIT was updated on November 3, 2026 and GrappleDex 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.*