# CHAT vs Mountain View Los Altos

The clearest difference is update cadence: CHAT at every 6 weeks against Mountain View Los Altos's every 6 months. Mountain View Los Altos's advantage is iOS requirement (13.4 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CHAT ships an update every 6 weeks, Mountain View Los Altos every 6 months. The most recent releases landed on October 1, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | CHAT | Mountain View Los Altos |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 6 months |
| Monetization | Free | — |
| Size | 37 MB | 26 MB |
| Requires iOS | 15.1 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Synergetx](https://appshunter.io/developer/1457801583) | [Diverse Network Associates Incorporated](https://appshunter.io/developer/1449934270) |

## 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


### Mountain View Los Altos

[App page](https://appshunter.io/ios/app/mountain-view-los-altos/id1595951013)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CHAT free?

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

### Is Mountain View Los Altos free?

Mountain View Los Altos is free to download, with no in-app purchases.

### Do CHAT or Mountain View Los Altos have ads?

Neither CHAT nor Mountain View Los Altos shows ads.

### Which is updated more often, CHAT or Mountain View Los Altos?

CHAT ships an update every 6 weeks, and Mountain View Los Altos every 6 months. Most recently, CHAT was updated on October 1, 2026 and Mountain View Los Altos on September 28, 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.*