# Zero/Sum vs Puzzlink

The clearest difference is in-app purchases: Zero/Sum at none against Puzzlink's 1. Zero/Sum also leads on ads (none vs shown) and update cadence (every 2 months vs every 5 months). On price and device support there is nothing between them.

Both are free to download. Puzzlink sells 1 one-off in-app purchase. Zero/Sum asks for nothing beyond the download.

Zero/Sum ships an update every 2 months, Puzzlink every 5 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Zero/Sum | Puzzlink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (27 ratings)](https://appshunter.io/ios/app/zerosum/id1200231665/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 53.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free | — |
| Size | 973 MB | 21 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Sean Kearney](https://appshunter.io/developer/944858047) | [Viviana Baeza](https://appshunter.io/developer/1664318415) |

## What reviewers say

### Zero/Sum

[App page](https://appshunter.io/ios/app/zerosum/id1200231665)

Solve mathematical puzzles to uncover a cure for cancer in this unique puzzle game. Experience an 80s action movie-inspired storyline with live-action cinematics and a variety of fresh puzzle mechanics. Features daily challenges and time trials.

**Highlights:** Unique and original puzzle gameplay, 80s action movie-inspired storyline, Full motion video cinematics with real actors, Variety of puzzle types (melting, number), Daily Challenge Mode with new puzzles, Time Trial mode

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

**In-app purchases:** none


### Puzzlink

[App page](https://appshunter.io/ios/app/puzzlink-minimalist-puzzle/id6743495740)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Zero/Sum free?

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

### Is Puzzlink free?

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

### Do Zero/Sum or Puzzlink have ads?

Puzzlink shows ads; Zero/Sum does not.

### Which is updated more often, Zero/Sum or Puzzlink?

Zero/Sum ships an update every 2 months, and Puzzlink every 5 months. Most recently, Zero/Sum was updated on November 2, 2026 and Puzzlink on November 6, 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.*