# COT Z vs Altyn

The clearest difference is in-app purchases: Altyn at none against COT Z's 1. Altyn also leads on update cadence (every 5 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. COT Z sells 1 in-app purchase, starting at $4.99 per month. Altyn asks for nothing beyond the download.

COT Z ships an update every 3 weeks, Altyn every 5 days. The most recent releases landed on October 28, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | COT Z | Altyn |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 39 MB | 49 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Ricardo Dacosta](https://appshunter.io/developer/1500340235) | [Oren Kanat](https://appshunter.io/developer/1128075472) |

## What reviewers say

### COT Z

[App page](https://appshunter.io/ios/app/cot-z-score/id6755860112)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| COT- ZScore - Monthly Subscription | $4.99 | per month |


### Altyn

[App page](https://appshunter.io/ios/app/altyn/id6776742679)

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

**In-app purchases:** none


## Frequently asked questions

### Is COT Z free?

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

### Is Altyn free?

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

### Do COT Z or Altyn have ads?

Neither COT Z nor Altyn shows ads.

### Which is updated more often, COT Z or Altyn?

COT Z ships an update every 3 weeks, and Altyn every 5 days. Most recently, COT Z was updated on October 28, 2026 and Altyn on November 5, 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.*