Comparison

Ukemi All vs KruBoss Rollers

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

Head to head
About

Ukemi All

Learn controlled falling techniques essential for Japanese martial arts like judo and aikido. This app focuses on the descent to the ground during throws and immobilizations, helping users build confidence and train with intensity. Explore various techniques and review exercises presented by an expert.

Highlights
  • Controlled fall techniques
  • Judo and Aikido focus
  • Descent to ground training
  • Technique search by category
  • Expert-led reviews
  • Confidence building
Features
Read full description

Learn to fall without hurting yourself. Ukemi is the art of falling. It is what you learn first in most martial arts, and what you keep working on afterwards: a badly received fall stops a practice more surely than a poorly executed technique. 103 FALLS, 252 VIDEOS Forward and backward rolls, side falls, flat falls, landings after a throw: the repertoire is filmed fall by fall, from the slow gesture to real speed. SEVERAL ANGLES AND SLOW MOTION Front, side, top depending on the fall. Slow motion returns to the moment when the body places itself — the one that decides whether the landing will be good or not. AT THE DOJO, WITHOUT A NETWORK Videos download the first time you play a module. Once the module is loaded, everything stays readable with no connection, even in a poorly covered gym. YOUR PLAYLIST Gather the falls you are working on right now and find them again in one gesture. Useful for preparing a session, or to pick up an entire family. WHO IT IS FOR For the beginner approaching their first rolls, the experienced practitioner returning to the basics, the teacher who wants to show rather than explain. Whatever the discipline: judo, aikido, jujitsu, self-defense. WHY UKEMI Falling is a skill in its own right, shared across all grappling martial arts. Well received, a fall does not hurt; badly received, it injures. It is the only technique you use at every training session. NO SUBSCRIPTION 49 videos are free to watch, with no account to create. After that, a single payment unlocks the full version, once and for all. Start with the forward roll, and take it slowly.

About

KruBoss Rollers

Connect with the global Brazilian Jiu-Jitsu community. Discover gyms, find training partners, share your progress, and upload videos to engage with fellow enthusiasts. Customize your profile to represent your BJJ style.

Highlights
  • Discover BJJ gyms and mats
  • Advertise home gyms or rolling spaces
  • Connect with local BJJ fans
  • Track and share progress
  • Upload videos and engage
  • Customize Gi and NoGi profiles
Read full description

Welcome to Kruboss Rollers BJJ – Your Jiu-Jitsu Journey Starts Here Built by and for Brazilian Jiu-Jitsu enthusiasts, Kruboss Rollers BJJ is your ultimate hub to **connect, train, and grow** within the global BJJ community. Key Features - Discover BJJ gyms and mats near you – Whether you're traveling or new to the sport, find the best training spots with ease. - Advertise your own home gym or rolling space – Share your mat with others and build your local BJJ crew. - Connect with local BJJ fans and training partners – No more solo drills; find someone to roll with anytime, anywhere. - Share your journey – Track and showcase your progress, from stripe to black belt. - Upload videos and engage with the community – Post your best moves, match clips, or drills and get feedback, comments, and support. - Customize your profile for both Gi and NoGi – Your style, your setup—represent who you are on the mats. Whether you're a white belt dreaming of your first submission or a black belt coaching the next generation, Kruboss Rollers BJJ brings the community to your fingertips. Download now and take your Jiu-Jitsu lifestyle beyond the mats.

Screenshots

Ukemi All4 screens
KruBoss Rollers4 screens

Verdict

The call

The clearest difference is in-app purchases: KruBoss Rollers at none against Ukemi All's 1. KruBoss Rollers also leads on update cadence (monthly vs every 6 months) and iOS requirement (13.0 vs 26.4). On price, review sentiment, 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. Ukemi All sells 1 one-off in-app purchase. KruBoss Rollers asks for nothing beyond the download.

UpkeepUpdate frequency

Ukemi All ships an update every 6 months, KruBoss Rollers monthly. The most recent releases landed on November 5, 2026 and November 2, 2026 respectively.

Scorecard4 real differences · 6 level
Ukemi All versus KruBoss Rollers: the parameters behind the verdict, then further details
ParameterUkemi AllKruBoss Rollers
PriceFreeFree
Rating—3.5 (2 ratings) — better
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 6 monthsMonthly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.413.0 — better
Further details — not scored
Size9 MB48 MB
Age rating+44+
Developeribudokan ltdGlobules Interactive Limited

Customer experience

Ukemi All

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

KruBoss Rollers

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

Ukemi All

One-time1
  • Ukemi Premium$3.99
None

KruBoss Rollers

No in-app purchases

Questions

Is Ukemi All free?
Ukemi All is free to download, with in-app purchases available.
Is KruBoss Rollers free?
KruBoss Rollers is free to download, with no in-app purchases.
Do Ukemi All or KruBoss Rollers have ads?
Neither Ukemi All nor KruBoss Rollers shows ads.
Which is updated more often, Ukemi All or KruBoss Rollers?
Ukemi All ships an update every 6 months, and KruBoss Rollers monthly. Most recently, Ukemi All was updated on November 5, 2026 and KruBoss Rollers on November 2, 2026.

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