# CHAT vs Zoodio

The clearest difference is in-app purchases: CHAT at none against Zoodio's 1. CHAT also leads on update cadence (every 6 weeks vs every 10 months). Zoodio's advantage is iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Zoodio sells 1 one-off in-app purchase. CHAT asks for nothing beyond the download.

CHAT ships an update every 6 weeks, Zoodio every 10 months. The most recent releases landed on October 25, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | CHAT | Zoodio |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 10 months |
| Monetization | Free | — |
| Size | 37 MB | 196 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Synergetx](https://appshunter.io/developer/1457801583) | [HeadStart International](https://appshunter.io/developer/661563321) |

## What reviewers say

### CHAT

[App page](https://appshunter.io/ios/app/chat-e/id1482010930)

This interactive tool uses puppet-guided interviews to help researchers collect structured responses from young children. It's designed for early childhood research, improving data consistency and child engagement in developmental psychology and educational studies.

**Highlights:** Puppet-driven interactive interviews, Structured data collection, Enhanced child engagement, Improved data consistency, Reduced training overhead, Optimized for field studies

**In-app purchases:** none


### Zoodio

[App page](https://appshunter.io/ios/app/zoodio-star-connect/id6468979339)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Constellations | $2.99 | one-time |


## Frequently asked questions

### Is CHAT free?

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

### Is Zoodio free?

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

### Do CHAT or Zoodio have ads?

Neither CHAT nor Zoodio shows ads.

### Which is updated more often, CHAT or Zoodio?

CHAT ships an update every 6 weeks, and Zoodio every 10 months. Most recently, CHAT was updated on October 25, 2026 and Zoodio on October 15, 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.*