# CoreAI Zoo vs Marshal Stack

The clearest difference is iOS requirement: Marshal Stack at 17.0 against CoreAI Zoo's 27.0. On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 29, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | CoreAI Zoo | Marshal Stack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 11 MB | 11 MB |
| Requires iOS | 27.0 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | +4 | 4+ |
| Developer | [Daisuke Majima](https://appshunter.io/developer/1350309854) | [Alexandr Degteari](https://appshunter.io/developer/1597066966) |

## What reviewers say

### CoreAI Zoo

[App page](https://appshunter.io/ios/app/coreai-zoo/id6780135339)

**In-app purchases:** none


### Marshal Stack

[App page](https://appshunter.io/ios/app/marshal-stack/id6801763798)

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

**In-app purchases:** none


## Frequently asked questions

### Is CoreAI Zoo free?

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

### Is Marshal Stack free?

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

### Do CoreAI Zoo or Marshal Stack have ads?

Neither CoreAI Zoo nor Marshal Stack shows ads.

### Which is updated more often, CoreAI Zoo or Marshal Stack?

CoreAI Zoo ships an update every 3 weeks, and Marshal Stack every 3 weeks. Most recently, CoreAI Zoo was updated on October 29, 2026 and Marshal Stack on October 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*