# Zero Sum Scorekeeper Assistant vs Score King

The clearest difference is in-app purchases: Zero Sum Scorekeeper Assistant at none against Score King's 1. Score King's advantage is update cadence (every 9 days vs every 4 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Score King sells 1 one-off in-app purchase. Zero Sum Scorekeeper Assistant asks for nothing beyond the download.

Zero Sum Scorekeeper Assistant ships an update every 4 weeks, Score King every 9 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Zero Sum Scorekeeper Assistant | Score King |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/score-king-save-your-match/id6748158347/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 95.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 9 days** |
| Monetization | Free | — |
| Size | 53 MB | 81 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Duong Vu Tung](https://appshunter.io/developer/1745934639) | [Hoang Nam](https://appshunter.io/developer/1824536142) |

## What reviewers say

### Zero Sum Scorekeeper Assistant

[App page](https://appshunter.io/ios/app/zero-sum-scorekeeper-assistant/id6502570274)

This smart scorekeeper uses zero-sum scoring theory to automatically calculate and fill in the last player's score. It offers AI-powered support for multiple Vietnamese card games, handling complex rules and scoring logic.

**Highlights:** AI-assisted scoring for Vietnamese card games, Automatic score calculation, Supports unlimited players, matches, and games, Dead-simple, distraction-free game flow, Checksum validation for accuracy, Player ranking

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

**In-app purchases:** none


### Score King

[App page](https://appshunter.io/ios/app/score-king-save-your-match/id6748158347)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Turn off ads | $0.99 | one-time |


## Frequently asked questions

### Is Zero Sum Scorekeeper Assistant free?

Zero Sum Scorekeeper Assistant is free to download, with no in-app purchases.

### Is Score King free?

Score King is free to download, with in-app purchases available.

### Do Zero Sum Scorekeeper Assistant or Score King have ads?

Neither Zero Sum Scorekeeper Assistant nor Score King shows ads.

### Which is updated more often, Zero Sum Scorekeeper Assistant or Score King?

Zero Sum Scorekeeper Assistant ships an update every 4 weeks, and Score King every 9 days. Most recently, Zero Sum Scorekeeper Assistant was updated on October 24, 2026 and Score King on October 24, 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.*