# Zero vs Memory Vault Plus

The clearest difference is update cadence: Memory Vault Plus at every 5 weeks against Zero's every 22 months. Memory Vault Plus also leads on ratings volume (8 vs 2). Zero's advantage is rating (5.0 vs 4.6) and iOS requirement (12.0 vs 18.6). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Zero holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Zero ships an update every 22 months, Memory Vault Plus every 5 weeks. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Zero | Memory Vault Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zero-sum-game-calculator/id1536945062/reviews)** | [4.6 (8 ratings)](https://appshunter.io/ios/app/memory-vault-plus/id1595172308/reviews) |
| Number of ratings | 2 | **8** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 9 MB | 6 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Troy McCurry](https://appshunter.io/developer/1536945064) | [Cinnamon Mobile LLC](https://appshunter.io/developer/473206444) |

## What reviewers say

### Zero

[App page](https://appshunter.io/ios/app/zero-sum-game-calculator/id1536945062)

This tool helps calculate the optimal strategy allocation for two players in a zero-sum game. Input your strategies, and it will determine the frequency each should be used for sports, politics, or military scenarios.

**Highlights:** Zero-sum game strategy calculation, Optimal allocation determination, Supports sports, politics, military, Frequency of strategy employment

**Features:** macOS Compatibility

**In-app purchases:** none


### Memory Vault Plus

[App page](https://appshunter.io/ios/app/memory-vault-plus/id1595172308)

Create your personal database to store and retrieve any information you might forget. This app helps you instantly recall names, birthdays, movies, and more by linking items with keywords and hints.

**Highlights:** Personal database creation, Keyword and hint association, Instant information retrieval, Recall forgotten names and facts, Organize personal memories

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Zero free?

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

### Is Memory Vault Plus free?

Memory Vault Plus is free to download, with no in-app purchases.

### Which has better reviews, Zero or Memory Vault Plus?

Zero is rated higher. Zero averages 5.0 out of 5 from 2 ratings, while Memory Vault Plus averages 4.6 from 8 ratings.

### Do Zero or Memory Vault Plus have ads?

Neither Zero nor Memory Vault Plus shows ads.

### Which is updated more often, Zero or Memory Vault Plus?

Zero ships an update every 22 months, and Memory Vault Plus every 5 weeks. Most recently, Zero was updated on October 6, 2026 and Memory Vault Plus on October 16, 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.*