# Backgammon Reserve vs Kaiju Defense

The clearest difference is in-app purchases: Backgammon Reserve at none against Kaiju Defense's 1. Backgammon Reserve also leads on ads (none vs shown). Kaiju Defense's advantage is update cadence (every 2 days vs every 4 days) and iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Kaiju Defense sells 1 one-off in-app purchase. Backgammon Reserve asks for nothing beyond the download.

Backgammon Reserve ships an update every 4 days, Kaiju Defense every 2 days. The most recent releases landed on November 5, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Backgammon Reserve | Kaiju Defense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (17 ratings)](https://appshunter.io/ios/app/backgammon-reserve/id6772647848/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | Free | — |
| Size | 17 MB | 88 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [Benjamin Taylor](https://appshunter.io/developer/6772648030) | [Jegeon Jung](https://appshunter.io/developer/1825889536) |

## What reviewers say

### Backgammon Reserve

[App page](https://appshunter.io/ios/app/backgammon-reserve/id6772647848)

This app offers a premium backgammon experience focused on serious players. It features ranked online play with Elo ratings, daily matches with extended move times, and structured match play. An advanced AI opponent provides detailed post-game analysis to help improve your strategy.

**Highlights:** Ranked online play with Elo rating, Daily matches with up to 24 hours per move, Match play with Crawford rule, Advanced AI opponent (Sir Reginald), Full post-game analysis and review, Global and friends standings, Secure, unbiased dice rolls

**In-app purchases:** none


### Kaiju Defense

[App page](https://appshunter.io/ios/app/kaiju-defense/id6818137960)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Backgammon Reserve free?

Backgammon Reserve is free to download, with no in-app purchases.

### Is Kaiju Defense free?

Kaiju Defense is free to download, with in-app purchases available.

### Do Backgammon Reserve or Kaiju Defense have ads?

Kaiju Defense shows ads; Backgammon Reserve does not.

### Which is updated more often, Backgammon Reserve or Kaiju Defense?

Backgammon Reserve ships an update every 4 days, and Kaiju Defense every 2 days. Most recently, Backgammon Reserve was updated on November 5, 2026 and Kaiju Defense on November 1, 2026.

---

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