# CosmoQuest Ai vs Dyausa

The clearest difference is update cadence: Dyausa at weekly against CosmoQuest Ai's every 6 months. 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.

CosmoQuest Ai ships an update every 6 months, Dyausa weekly. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | CosmoQuest Ai | Dyausa |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Size | 21 MB | 7 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [pezhman mohammadzadehkordestani](https://appshunter.io/developer/1888276473) | [Adit Goel](https://appshunter.io/developer/6779083065) |

## What reviewers say

### CosmoQuest Ai

[App page](https://appshunter.io/ios/app/cosmoquest-ai/id6762165168)

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

**In-app purchases:** none


### Dyausa

[App page](https://appshunter.io/ios/app/dyausa/id6793622010)

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

**In-app purchases:** none


## Frequently asked questions

### Is CosmoQuest Ai free?

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

### Is Dyausa free?

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

### Do CosmoQuest Ai or Dyausa have ads?

Neither CosmoQuest Ai nor Dyausa shows ads.

### Which is updated more often, CosmoQuest Ai or Dyausa?

CosmoQuest Ai ships an update every 6 months, and Dyausa weekly. Most recently, CosmoQuest Ai was updated on October 25, 2026 and Dyausa on October 29, 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.*