# Calibur vs OpponentBook

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.

Both are free to download. OpponentBook sells 3 in-app purchases, starting at $11.99 per month. Calibur asks for nothing beyond the download.

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.

## The numbers

| Metric | Calibur | OpponentBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/calibur/id1565327007/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 55 MB | 73 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [TechCruiser Korlatolt Felelossegu Tarsasag](https://appshunter.io/developer/1535449617) | [Recsty AB](https://appshunter.io/developer/1892368355) |

## What reviewers say

### Calibur

[App page](https://appshunter.io/ios/app/calibur/id1565327007)

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:** macOS Compatibility

**In-app purchases:** none


### OpponentBook

[App page](https://appshunter.io/ios/app/opponentbook/id6801899784)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpponentBook Premium | $11.99 | per month |
| OpponentBook Pro | $22.99 | per month |
| OpponentBook Max | $44.99 | per month |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*