Comparison

Aikido Weapons vs Swim EFF

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

Head to head
About

Aikido Weapons

Learn Aikido techniques using traditional weapons like the bokken and jo. View detailed demonstrations from multiple angles, perfect for practice anywhere. Includes a free trial.

Highlights
  • Bokken techniques
  • Jo staff techniques
  • Multi-angle video demonstrations
  • On-the-go training
  • Free trial available
Features
Read full description

Learn aikido weapons work, movement by movement. Ken and jo are trained at a distance, where a few centimeters change everything. Every technique is filmed from three angles and shown again in slow motion, so the detail becomes visible. 120 TECHNIQUES, 600 VIDEOS, TWO WEAPONS • Aikiken — 42 techniques of ken work • Aiki jo — 78 techniques of jo work THREE ANGLES AND SLOW MOTION Front, side, top. Every technique is filmed from these three angles, and you switch between them with a single tap. Multiview brings them together on one screen. Slow motion replays the movement at the speed where the gesture becomes readable. FINDING A TECHNIQUE Type the name of what you are looking for. Each result shows its full path: you know where it comes from before you open it. AT THE DOJO, WITHOUT A NETWORK Videos for a module download the first time you play it. Tatami floors are rarely well covered: once the module is loaded, everything stays readable with no connection. YOUR PLAYLIST Gather the techniques you are working on right now and find them again in one gesture. Useful before a grading, or to pick up a series session after session. WHO IT IS FOR For the practitioner approaching weapons for the first time, the one preparing an examination that includes them, the teacher building a class. You come back to a technique as many times as you need. KEN AND JO The ken is a wooden sword; the jo a staff about one meter thirty long. Two weapons, two distances, two repertoires of techniques. NO SUBSCRIPTION 84 videos are free to watch, with no account to create. After that, a single payment unlocks the full version, once and for all. Take a weapon, open a technique, watch again.

About

Swim EFF

Features
Read full description

SwimEFF es una app esencial para entrenadores que requieren evaluar y mejorar la técnica y eficiencia en el agua de sus nadadores. Características principales: - Interfaz Diseñada para Entrenadores: Fácil de usar incluso en condiciones de piscina, facilitando la gestión durante las sesiones. - Análisis de Brazada: Datos que permiten analizar la técnica de brazada, incluyendo variables como la frecuencia o la amplitud. - Estadísticas Detalladas: Métricas clave para facilitar los ajustes en los entrenamientos.

Screenshots

Aikido Weapons4 screens
Swim EFF3 screens

Verdict

The call

The clearest difference is in-app purchases: Swim EFF at none against Aikido Weapons's 2. Swim EFF also leads on update cadence (every 2 months vs every 3 months) and iOS requirement (13.4 vs 26.4). On price, 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. Aikido Weapons sells 2 one-off in-app purchases. Swim EFF asks for nothing beyond the download.

UpkeepUpdate frequency

Aikido Weapons ships an update every 3 months, Swim EFF every 2 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Aikido Weapons versus Swim EFF: the parameters behind the verdict, then further details
ParameterAikido WeaponsSwim EFF
PriceFreeFree
Rating3.0 (1 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.413.4 — better
Further details — not scored
Size9 MB17 MB
Age rating4+4+
Developeribudokan ltdRoberto Castro

In-app purchases

2 purchases

Aikido Weapons

One-time2
  • Aiki Jo / Suburi and Kata$3.99
  • Aiki Ken / Advanced Variations$3.99
None

Swim EFF

No in-app purchases

Questions

Is Aikido Weapons free?
Aikido Weapons is free to download, with in-app purchases available.
Is Swim EFF free?
Swim EFF is free to download, with no in-app purchases.
Do Aikido Weapons or Swim EFF have ads?
Neither Aikido Weapons nor Swim EFF shows ads.
Which is updated more often, Aikido Weapons or Swim EFF?
Aikido Weapons ships an update every 3 months, and Swim EFF every 2 months. Most recently, Aikido Weapons was updated on November 1, 2026 and Swim EFF on October 30, 2026.

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