Comparison

AOJ+ vs Timer4BJJ

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

Head to head
About

AOJ+

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
Read full description

The Art of Jiu Jitsu Online Video Platform gives subscribers access to a database of thousands of technique instructionals, hours of sparring & drilling footage, exclusive interviews, behind the scenes content and more. The videos feature world class instructors and athletes and are presented in a cinematic and artistic manner, creating an immersive learning environment for the viewer. Multiple membership options are available and allow the user to stream anytime, anywhere on their device. ▷ Already a Member? Sign-In to access your subscription. ▷ New? Try it for free! Subscribe in the app to get instant access. The Art of Jiu Jitsu offers an auto-renewing subscription that will allow you unlimited access to content on all your devices. Payment is charged to your Account at confirmation of purchase. Pricing varies by location and is confirmed prior to purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current billing period. Cancel anytime in Account Settings. For more information see our: -Terms of Service: https://artofjiujitsu.com/terms-of-use/ -Privacy Policy: https://artofjiujitsu.com/privacy-policy/

About

Timer4BJJ

This app helps practitioners time their Brazilian Jiu-Jitsu rolling and rest periods. It allows for custom configurations of multiple rounds with distinct durations, streamlining training sessions.

Highlights
  • Customizable roll and rest times
  • Multiple round configurations
  • Simple and practical interface
  • Efficient training tool
Features
Read full description

Timer specifically designed to address roll time for bjj sessions. It's possible do define different roll and rest times for a different numbers of rolls, all at once, and then let it do its job. Simple, practical and efficient - all you need for your rolling.

Screenshots

AOJ+3 screens
Timer4BJJ3 screens

Verdict

The call

The clearest difference is review sentiment: AOJ+ at 88% against Timer4BJJ's 0%. AOJ+ also leads on rating (4.9 vs 1.0) and update cadence (every 5 weeks vs every 7 months). Timer4BJJ's advantage is in-app purchases (none vs 14). On price, ads, device support and iOS requirement 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. AOJ+ sells 14 in-app purchases, starting at $24.99 per month. Timer4BJJ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

AOJ+ holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: AOJ+ has 397 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 88% of AOJ+'s written reviews are positive against 0% of Timer4BJJ's.

UpkeepUpdate frequency

AOJ+ ships an update every 5 weeks, Timer4BJJ every 7 months. The most recent releases landed on October 13, 2026 and September 24, 2026 respectively.

Scorecard6 real differences · 4 level
AOJ+ versus Timer4BJJ: the parameters behind the verdict, then further details
ParameterAOJ+Timer4BJJ
PriceFreeFree
Rating4.9 (397 ratings) — better1.0 (1 ratings)
Positive reviews87.5% of reviews — better0.0% of reviews
Number of ratings397 — better1
Update frequencyEvery 5 weeks — betterEvery 7 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple TV — betteriPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size63 MB1 MB
Age rating4+4+
DeveloperMendes Bros, IncINVENTIVE TECHNOLOGY CONSULTING GmbH

Customer experience

AOJ+

All ratings397 ratings
Positive98.2%
Neutral0.3%
Negative1.5%
Written reviews16 reviews
Positive87.5%
Neutral0.0%
Negative12.5%

Timer4BJJ

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

AOJ+

Reported bugs

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

Requested features

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

Timer4BJJ

Not enough reviews yet to summarise bugs or requests.

In-app purchases

14 purchases

AOJ+

Subscriptions4
  • Monthly Subscription3 Days trial$24.991 Month
  • 3 Month Subscription$74.993 Months
  • 6 Month Subscription$139.996 Months
Show 1 more
  • 12 Month Subscription3 Days trial$249.991 Year
One-time10
  • Content Tier $49.99$49.99
  • Content Tier $59.99$59.99
  • Content Tier $99.99$99.99
Show 7 more
  • Content Tier $149.99$149.99
  • Content Tier $179.99$179.99
  • Content Tier $199.99$199.99
  • Content Tier $219.99$219.99
  • Content Tier $229.99$229.99
  • Content Tier $249.99$249.99
  • Content Tier $349.99$349.99
None

Timer4BJJ

No in-app purchases

Questions

Is AOJ+ free?
AOJ+ is free to download, with in-app purchases available.
Is Timer4BJJ free?
Timer4BJJ is free to download, with no in-app purchases.
Which has better reviews, AOJ+ or Timer4BJJ?
AOJ+ is rated higher. AOJ+ averages 4.9 out of 5 from 397 ratings, while Timer4BJJ averages 1.0 from 1 ratings.
Do AOJ+ or Timer4BJJ have ads?
Neither AOJ+ nor Timer4BJJ shows ads.
Which is updated more often, AOJ+ or Timer4BJJ?
AOJ+ ships an update every 5 weeks, and Timer4BJJ every 7 months. Most recently, AOJ+ was updated on October 13, 2026 and Timer4BJJ on September 24, 2026.

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