# Cortex vs AIChatsere

The clearest difference is update cadence: AIChatsere at every 2 days against Cortex's every 5 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Cortex sells 4 in-app purchases, starting at $4.99 per 7 days and AIChatsere sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Cortex ships an update every 5 days, AIChatsere every 2 days. The most recent releases landed on October 31, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Cortex | AIChatsere |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Size | 74 MB | 5 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [ODBS LLC](https://appshunter.io/developer/1816580215) | [yangzhou guangying network technology co ltd](https://appshunter.io/developer/1642952133) |

## What reviewers say

### Cortex

[App page](https://appshunter.io/ios/app/cortex-compare-ai-chat-models/id6760509573)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Weekly | $4.99 | per 7 days |
| Pro Monthly | $8.99 | per month |
| Pro Weekly | $9.99 | per 7 days |
| Pro Yearly | $59.99 | per year |


### AIChatsere

[App page](https://appshunter.io/ios/app/aichatsere-ask-smart-ai/id6785867503)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| week membership | $3.99 | per 7 days |
| year membership | $14.99 | per year |
| lifetime membership | $19.99 | one-time |


## Frequently asked questions

### Is Cortex free?

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

### Is AIChatsere free?

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

### Do Cortex or AIChatsere have ads?

Neither Cortex nor AIChatsere shows ads.

### Which is updated more often, Cortex or AIChatsere?

Cortex ships an update every 5 days, and AIChatsere every 2 days. Most recently, Cortex was updated on October 31, 2026 and AIChatsere on October 13, 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.*