Comparison

OneJitsu vs I

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

Head to head
About

OneJitsu

Discover Brazilian Jiu-Jitsu gyms and training partners globally. Book sessions, join events, and connect with practitioners. Gym managers can manage academies, schedules, and communicate with members.

Highlights
  • Find BJJ gyms and training partners
  • Book sessions and courses
  • Discover events (competitions, seminars)
  • Track registered sessions
  • Gym management tools
  • Integrated messaging for community connection
  • Available in 14 languages
Features
Read full description

BJJ Practitioners: • Find gyms and training partners near you • Book sessions and courses directly from the app • Join events: competitions, open mats, seminars, ceremonies • Track your registered sessions in "My Events" • Get the latest news from your gym • Create your profile and connect with practitioners worldwide through integrated messaging • Available in 14 languages Gym Managers: • Manage your academy page and schedule • Create and manage sessions with online booking • Communicate live with your members and the OneJitsu community • Create events (competitions, open mats, seminars, parties, ceremonies) • Track attendance and participant registrations • Boost your visibility through the app • Available on web: https://club.onejitsu.com How does the gym managers premium account work? Subscribe to a monthly or yearly membership to enjoy the gym managers features. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Need help? Contact us at contact@onejitsu.com Follow us: https://www.instagram.com/one.jitsu/ Terms of usage and data privacy policy: https://onejitsu.com/s/CGVU-ONEJITSU.pdf

About

I

Features
Read full description

I-Percut becomes your boxing training ally: Organize and analyze your performance with your punching bag enhanced with our I-Perskin! Thanks to it and its luminous targets equipped with ultra-sensitive sensors, your bag becomes interactive and guides you in your training, whether you are a professional or an amateur. The I-Percut application offers you a variety of exercises tailored to your goals, and provides you with reliable and accurate statistics on the quality of your practice. Your progress is measured by 4 criteria : Strength - Speed - Reactivity - Volume A revolution in the boxing world !

Screenshots

OneJitsu4 screens
I4 screens

Verdict

The call

The clearest difference is update cadence: OneJitsu at every 4 days against I's every 3 months. On price, ads, in-app purchases 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. OneJitsu sells 7 in-app purchases, starting at $44.99 per month and I sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

OneJitsu ships an update every 4 days, I every 3 months. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

Scorecard1 real difference · 8 level
OneJitsu versus I: the parameters behind the verdict, then further details
ParameterOneJitsuI
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 4 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.1 — better
Further details — not scored
Size69 MB58 MB
Age rating4+4+
DeveloperPHIL@KODI-PERCUT

In-app purchases

7 purchases

OneJitsu

Subscriptions2
  • Monthly premium account$44.991 Month
  • Annual premium membership$390.001 Year
One-time5
  • Notify at 100km$0.99
  • Notify at 250km$1.99
  • Notify at 500km$2.99
Show 2 more
  • Notify at 750km$3.99
  • Notify at 1000km$4.99
3 purchases

I

Subscriptions3
  • I-Percut Premium 1 mois$5.991 Month
  • I-Percut Premium 3 mois1 Month trial$14.993 Months
  • I-Percut Premium 1 an1 Month trial$49.991 Year

Questions

Is OneJitsu free?
OneJitsu is free to download, with in-app purchases available.
Is I free?
I is free to download, with in-app purchases available.
Do OneJitsu or I have ads?
Neither OneJitsu nor I shows ads.
Which is updated more often, OneJitsu or I?
OneJitsu ships an update every 4 days, and I every 3 months. Most recently, OneJitsu was updated on September 10, 2026 and I on September 18, 2026.

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