Comparison

Aikido Encyclopedia vs Nakata Dojo

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

Head to head
About

Aikido Encyclopedia

Access a comprehensive video library of over 460 traditional Aikido techniques, including empty-hand, Jo, and Ken exercises. This tool aids practitioners of all levels in studying specific moves, expanding their repertoire, and organizing techniques for class planning or exam preparation.

Highlights
  • Extensive video library of 460+ techniques
  • Covers empty-hand, Jo, and Ken exercises
  • Detailed examples for study
  • Helps expand technique repertoire
  • Create and edit custom technique collections
  • Useful for teachers and students
Features
Read full description

Aikido Encyclopedia is a video library of over 460 aikido techniques: empty-hand techniques from every common attack, plus jo (staff) and ken (sword) exercises. Version 2.0 is rebuilt from the ground up. WATCH CLOSELY • Half speed, loop the whole clip or just one part, and mirror to study the other side • Pin a note to a moment in a video, such as an instructor's correction, and jump back to it later • AirPlay a video to the dojo TV or projector FIND IT FAST • Search understands phrases like "katate dori ikkyo ura", and kanji like 一教 • Browse by attack to see every technique from one grab or strike • Tags you can pick, search and pin to Home DICTIONARY 122 terms with kanji and kana. Tap the speaker to hear a term in Japanese, and tap again to hear it slowly. Add your own terms. COLLECTIONS FOR EACH TEST • Make a collection for each grading and tick techniques off as you practice • Pin a collection to Home to see your progress • Paste a written syllabus and the app finds the videos for each grade PRACTICE • Term flashcards: the word with its kanji and kana; flip for the meaning • Video flashcards: watch a silent clip and name the technique, the attack, and omote or ura • Cards you miss come back sooner • Mock Test calls out a collection's requirements at random, aloud in Japanese, like an examiner. Set how many times each name is said and the time between techniques, and practice hands-free TRAINING LOG • Log today's class with one tap • Record each test, with its videos • Set a goal for training days before your next test • Widgets for training days, your test progress and a term of the day MAKE IT YOURS • On any technique, add notes, photos, videos from Photos or recorded in class, and YouTube links • Add techniques and attacks the library doesn't have • Rename, hide or restore any built-in tag, video, category or term, and add your own categories • Build your lineage, from your art's founder down to your own teacher, and write your own Learn pages • Start your own library for another art BUDO RENSHU If your dojo uses Budo Renshu, sign in to connect it. Each dojo you belong to arrives with its ranks as collections, matched to the videos, one section per art. Rate each requirement Lost, Shaky or Got it, in step with your Budo Renshu ratings. See your rank, your classes toward the next one and your next test. Your dojo's dictionary terms, technique notes, lineage and videos appear beside the standard ones. The classes your dojo records appear in your Training Log. Budo Renshu is in testing at Capital City Aikido; other dojos aren't available to join yet. FOR TEACHERS Share a syllabus, recordings included, as one file by Mail, Messages or AirDrop. Students tap Import. A newer file from you updates their lists and keeps their ticks. Everything you add syncs to your other devices through iCloud. Works on iPhone and iPad, and on a folding iPhone it stays on the same page when you fold or unfold it. One purchase. No account needed, no subscription, no ads.

About

Nakata Dojo

Features
Read full description

Kime is the official student portal app for Nakata Dojo — your complete martial arts training companion. Track your progress, manage your schedule, and stay connected to your dojo from anywhere. FEATURES: • Belt Progress — Visualize your journey from white belt to black belt with detailed skill tracking • Skill Assessment — See your ratings across all techniques, updated after every class • Class Schedule — View weekly classes, join or leave sessions, and join the waitlist • Achievements & Badges — Earn recognition for milestones and consistent training • Events — Stay up to date on tournaments, seminars, and dojo events • Announcements — Never miss important news from your instructors • Membership — Manage your membership and payments securely through the app • Multi-Student — Parents can manage multiple children from a single account Kime is exclusively for Nakata Dojo students. Contact your dojo for access credentials.

Screenshots

Aikido Encyclopedia4 screens
Nakata Dojo4 screens

Verdict

The call

The clearest difference is price: Nakata Dojo at Free against Aikido Encyclopedia's $19.99. Nakata Dojo also leads on update cadence (daily vs every 64 months) and iOS requirement (14.0 vs 26.0). On 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

Nakata Dojo is free to download; Aikido Encyclopedia costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Aikido Encyclopedia ships an update every 64 months, Nakata Dojo daily. The most recent releases landed on November 11, 2026 and November 4, 2026 respectively.

Scorecard3 real differences · 7 level
Aikido Encyclopedia versus Nakata Dojo: the parameters behind the verdict, then further details
ParameterAikido EncyclopediaNakata Dojo
Price$19.99Free — better
Rating4.2 (6 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 64 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.014.0 — better
Further details — not scored
Size414 MB4 MB
Age rating4+4+
DeveloperNerd Alchemy LLCKenji Nakata

In-app purchases

None

Aikido Encyclopedia

No in-app purchases

None

Nakata Dojo

No in-app purchases

Questions

Is Aikido Encyclopedia free?
Aikido Encyclopedia costs $19.99, with no in-app purchases.
Is Nakata Dojo free?
Nakata Dojo is free to download, with no in-app purchases.
Do Aikido Encyclopedia or Nakata Dojo have ads?
Neither Aikido Encyclopedia nor Nakata Dojo shows ads.
Which is updated more often, Aikido Encyclopedia or Nakata Dojo?
Aikido Encyclopedia ships an update every 64 months, and Nakata Dojo daily. Most recently, Aikido Encyclopedia was updated on November 11, 2026 and Nakata Dojo on November 4, 2026.

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