# Infinity vs Zen Stack Masters

The clearest difference is update cadence: Zen Stack Masters at every 4 days against Infinity's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Infinity sells 1 one-off in-app purchase and Zen Stack Masters sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Infinity ships an update fortnightly, Zen Stack Masters every 4 days. The most recent releases landed on August 27, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Infinity | Zen Stack Masters |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Size | 8 MB | 27 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Anand Raj R](https://appshunter.io/developer/514675684) | [Gal Itach](https://appshunter.io/developer/1867158254) |

## What reviewers say

### Infinity

[App page](https://appshunter.io/ios/app/infinity-basic-math-questions/id6748877343)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Host a Party (Lifetime) | $1.99 | one-time |


### Zen Stack Masters

[App page](https://appshunter.io/ios/app/zen-stack-masters/id6758891728)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zen Master | Free | one-time |
| Second Chance Tokens | $0.99 | one-time |
| Infinite Zen Mode | $5.99 | one-time |
| 1000 Tokens Deal | $99.99 | one-time |


## Frequently asked questions

### Is Infinity free?

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

### Is Zen Stack Masters free?

Zen Stack Masters is free to download, with in-app purchases available.

### Do Infinity or Zen Stack Masters have ads?

Neither Infinity nor Zen Stack Masters shows ads.

### Which is updated more often, Infinity or Zen Stack Masters?

Infinity ships an update fortnightly, and Zen Stack Masters every 4 days. Most recently, Infinity was updated on August 27, 2026 and Zen Stack Masters on September 21, 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.*