# Cortex vs InstantAI

The clearest difference is in-app purchases: Cortex at none against InstantAI's 10. Cortex also leads on iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. InstantAI sells 10 in-app purchases, starting at $5.99 per 7 days. Cortex asks for nothing beyond the download.

## The numbers

| Metric | Cortex | InstantAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/instantai-lightning-fast-ai/id6762028091/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 2 days |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 31 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Pratik Poudel](https://appshunter.io/developer/1789053079) | [NORTH TUMBLEWEED LLC](https://appshunter.io/developer/1892545435) |

## What reviewers say

### Cortex

[App page](https://appshunter.io/ios/app/cortex-private-ai-assistant/id6759742402)

**Features:** macOS Compatibility

**In-app purchases:** none


### InstantAI

[App page](https://appshunter.io/ios/app/instantai-lightning-fast-ai/id6762028091)

Experience lightning-fast AI responses with this application, offering instant, intelligent answers at speeds up to 3,000 words per second. Analyze documents, perform web searches, and utilize advanced reasoning modes for complex tasks. Enjoy a private and ad-free experience with customizable instructions and conversation history.

**Highlights:** Up to 3,000 words per second response speed, Web search with real-time sources, PDF, image, and document analysis, Math rendering with LaTeX support, Code highlighting, Conversation history and bookmarks, Custom AI instructions

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Weekly | $5.99 | per 7 days |
| Plus Monthly | $18.99 | per month |
| Ultra Weekly | $18.99 | per 7 days |
| Ultra Max Monthly | $29.99 | per 7 days |
| Ultra Monthly | $59.99 | per month |
| Ultra Max Monthly | $99.99 | per month |
| Plus Yearly | $169.99 | per year |
| Ultra Yearly | $449.99 | per year |
| Ultra Max Yearly | $749.99 | per year |
| 3,500 Bolts | $49.99 | one-time |


## Frequently asked questions

### Is Cortex free?

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

### Is InstantAI free?

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

### Do Cortex or InstantAI have ads?

Both Cortex and InstantAI show ads.

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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.*