Zero Sum Scorekeeper Assistant vs VNA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zero Sum Scorekeeper Assistant
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.
- 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
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Built on zero-sum scoring theory, this smart scorekeeper helps you enter scores faster by automatically calculating and filling in the last player’s score. The app also includes AI-powered support for multiple Vietnamese card games, handling game-specific rules and scoring logic for you. Key features: AI-assisted scoring for popular Vietnamese card games Automatic score distribution with the minimum number of transactions Dead-simple, distraction-free game flows Unlimited players, matches, and games Checksum validation for each match and the entire game Player ranking per match and overall And much more coming soon
VNA
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Ứng dụng cho phép người dùng tham gia các hội nghị miễn phí của hội thần kinh học Việt Nam, hoặc nhận các thông tin hữu ích về các hội nghị tăng cường sức khoẻ nhờ các công nghệ hiện đại
Screenshots
Verdict
The clearest difference is iOS requirement: VNA at 12.4 against Zero Sum Scorekeeper Assistant's 16.0. On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Zero Sum Scorekeeper Assistant ships an update every 4 weeks, VNA every 6 weeks. The most recent releases landed on November 4, 2026 and November 12, 2026 respectively.
| Parameter | Zero Sum Scorekeeper Assistant | VNA |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 95.2% of reviews | — |
| Update frequency | Every 4 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 12.4 — better |
| Further details — not scored | ||
| Size | 56 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Duong Vu Tung | COSPHARM |
In-app purchases
Zero Sum Scorekeeper Assistant
No in-app purchases
VNA
No in-app purchases
Questions
Is Zero Sum Scorekeeper Assistant free?
Is VNA free?
Do Zero Sum Scorekeeper Assistant or VNA have ads?
Which is updated more often, Zero Sum Scorekeeper Assistant or VNA?
Other comparisons
