Comparison

GrappleDex vs Roller BJJ

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GrappleDex

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
Read full description

GrappleDex is a Brazilian Jiu-Jitsu training journal built specifically for BJJ practitioners. Log your sessions, train with intention, and understand your game over time. Your sessions are private by default. Share the ones you want to the community feed and see what other grapplers are working on. Log BJJ Sessions in Seconds - Record positions, techniques, notes, duration, and session feedback - Attach photos from the mats - Instantly search your full training history - Review detailed sessions with notes and related training - Light and dark themes Share Your Training - A community feed of shared sessions from grapplers everywhere - Like sessions and see who liked yours - Tap anyone to see their belt, gym, training stats, and recent activity Train With Intention - Set a focus for your next session or training week - Stay accountable before and after class - Reflect on your focus as you log sessions - Review past focuses alongside your training calendar See Your Progress Clearly - Track sessions, hours, and training days - Discover your most trained positions and techniques - Visualize patterns with heatmaps and activity graphs - Spot strengths, gaps, and trends in your game Understand Your Game - Compare related sessions to identify recurring patterns - Keep notes, techniques, and positions organized in one place - Build a clearer picture of how you actually train Stay Consistent - Get reminders to log and reflect after training - Receive weekly summaries based on your activity - Build habits that support long-term improvement Unlock More With Pro - Create custom positions and techniques of your own - Support the continued development of GrappleDex Built for every BJJ practitioner; hobbyist, competitor, or coach. Whether you train for fitness, self-defense, or competition, GrappleDex helps you stay organized, train with purpose, and continuously improve in Brazilian Jiu-Jitsu. Website: https://grappledex.com/ Instagram: https://instagram.com/grappledex Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Roller BJJ

Features
Read full description

Roller is an app to server as a journal for your Brazilian Jujitsu journey. There are 3 main things you should track. Classes, Rounds, and Submissions! Tracking them right after class is the best way to get accurate data. Use Classes to keep track of the moves you learned, track your comfort over time, and keep track of how many times you've drilled. Use Rounds to keep track of mat time, know that you're going to do differently against different belts. View rounds over time and see the difference between day one and today. Use Submissions to find your strengths and your weaknesses, find which submission you're caught in the most and which you land the most.

Screenshots

GrappleDex4 screens
Roller BJJ4 screens

Verdict

The call

The clearest difference is in-app purchases: Roller BJJ at none against GrappleDex's 1. GrappleDex's advantage is iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on August 10, 2026 and September 13, 2026 respectively.

Scorecard2 real differences · 7 level
GrappleDex versus Roller BJJ: the parameters behind the verdict, then further details
ParameterGrappleDexRoller BJJ
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size48 MB19 MB
Age rating4+4+
DeveloperAoshen ZhouPatrick Dornan

In-app purchases

1 purchases

GrappleDex

Subscriptions1
  • GrappleDex Pro7 Days trial$2.991 Month
None

Roller BJJ

No in-app purchases

Questions

Is GrappleDex free?
GrappleDex is free to download, with in-app purchases available.
Is Roller BJJ free?
Roller BJJ is free to download, with no in-app purchases.
Do GrappleDex or Roller BJJ have ads?
Neither GrappleDex nor Roller BJJ shows ads.
Which is updated more often, GrappleDex or Roller BJJ?
GrappleDex ships an update monthly, and Roller BJJ monthly. Most recently, GrappleDex was updated on August 10, 2026 and Roller BJJ on September 13, 2026.

Other comparisons