Comparison

Calibur vs OpponentBook

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

Head to head
About

Calibur

This app transforms your smartphone or tablet into a wireless fencing scoreboard for épée, foil, and sabre. It connects to a small pocket box device, allowing you to set up and fence in seconds. Enjoy wireless scoring for practice or competition.

Highlights
  • Wireless scoring for épée, foil, and sabre
  • Connects to pocket box device
  • Use phone or tablet as scoreboard
  • Quick setup in 30 seconds
  • Supports iPhone and iPad
Features
Read full description

Wireless fencing scoreboard app of all three disciplines. Set up in 30 seconds. Plug in and fence. Why Calibur? - The app is suitable for épée, foil and sabre fencing - All you need is our tiny device (pocket box), which creates wireless connection between the weapon and the phone - You can use your phone or tablet as a wireless scoring machine How to use? - Download our app to your smartphone or tablet - Connect your pocket boxes to the app - Plug in your body wire - En garde ! Prêts ? Allez ! Don’t have your pocket box yet? Get yours now and unlock fencing anywhere, anytime: https://calibur.ai/shop User manual: calibur.ai/manuals/

About

OpponentBook

Read full description

Every opponent you've ever faced, remembered. What worked, what didn't, and what to do next time — in a private journal that's yours alone. OpponentBook is a journal for individual-sport athletes. Log matches, keep notes on the people you face, and build a living scouting book over your career — with photos, video clips and tactical pins placed directly on the piste, table, court, ring or mat — and, once you upload the match video, each pin links to the exact second in it: one tap takes you from the note to the footage. SEVENTEEN SPORTS Fencing, table tennis, tennis, badminton, squash, padel, judo, karate, kendo, kyokushin, taekwondo, boxing, kickboxing/Muay Thai, wrestling, BJJ, jujutsu and MMA — each with its own playing surface and vocabulary. YOUR NOTES NEVER TOUCH OUR SERVERS Your journal lives on storage you control — iCloud, Google Drive or Dropbox — never in our database. We cannot read your notes: that's how the app is built, not just a promise. Optional end-to-end encryption hides your entries from your storage provider too. FREE, FOR REAL • Unlimited opponents, matches and training entries • Tactical pins on the actual playing surface • Every pin links to the exact second in your match video — tap it and watch the moment • Review any pinned moment in slow motion, or frame by frame • Unlimited photos and video clips (they live on your storage) • Add photos and video while you log the match, not only afterwards • A profile photo for every opponent, and their match videos on their profile • Cross-device sync through your own storage — big clips resume where they left off • PDF and Word export — hand your coach a brief they can read on the spot • Works offline; syncs when you're back • Available in 21 languages GO DEEPER WITH PREMIUM, PRO AND MAX Premium — your statistics and tools • Which actions work and which fail — and where on the playing surface • Heatmaps of every pin, across all your opponents • Every video moment you pinned to an action, across all opponents, in one reel • How each action fares against each playing style • Win rate by opponent trait, by style tag, month by month • AI summaries of any opponent, AI tag suggestions on your notes • Voice dictation into any note • A training plan that shows where your logged training drifts from it • Branding-free PDF and Word exports Pro — the deep AI analyses • Pre-competition briefs on the people you are about to face • In-depth match reviews • Playing-style classification and matchup-pattern analysis • How an opponent's game has changed since you first logged them • Recurring tendencies lifted from your notes into their profile • The themes your training keeps coming back to All of it grounded in your own notes, in your own language. Max is Pro with more headroom. Download OpponentBook and start the journal you keep on every opponent — and on yourself. Terms of Use: https://app.opponentbook.com/terms Privacy Policy: https://opponentbook.com/privacy

Screenshots

Calibur4 screens
OpponentBook4 screens

Verdict

The call

The clearest difference is in-app purchases: Calibur at none against OpponentBook's 3. OpponentBook's advantage is update cadence (every 2 days vs every 3 weeks). 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. OpponentBook sells 3 in-app purchases, starting at $11.99 per month. Calibur asks for nothing beyond the download.

UpkeepUpdate frequency

Calibur ships an update every 3 weeks, OpponentBook every 2 days. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 7 level
Calibur versus OpponentBook: the parameters behind the verdict, then further details
ParameterCaliburOpponentBook
PriceFreeFree
Rating4.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 3 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size55 MB73 MB
Age rating4+12+
DeveloperTechCruiser Korlatolt Felelossegu TarsasagRecsty AB

In-app purchases

None

Calibur

No in-app purchases

3 purchases

OpponentBook

Subscriptions3
  • OpponentBook Premium$11.991 Month
  • OpponentBook Pro$22.991 Month
  • OpponentBook Max$44.991 Month

Questions

Is Calibur free?
Calibur is free to download, with no in-app purchases.
Is OpponentBook free?
OpponentBook is free to download, with in-app purchases available.
Do Calibur or OpponentBook have ads?
Neither Calibur nor OpponentBook shows ads.
Which is updated more often, Calibur or OpponentBook?
Calibur ships an update every 3 weeks, and OpponentBook every 2 days. Most recently, Calibur was updated on October 14, 2026 and OpponentBook on October 10, 2026.

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