# Smart Chat vs Know AI

The clearest difference is ads: Know AI at none against Smart Chat's shown. Know AI also leads on update cadence (weekly vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Smart Chat sells 3 in-app purchases, starting at $2.99 per 7 days and Know AI sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Smart Chat ships an update monthly, Know AI weekly. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Smart Chat | Know AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Weekly** |
| Size | 77 MB | 32 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Van Hung Nguyen](https://appshunter.io/developer/1457520523) | [DEVNEST (PTY) LTD](https://appshunter.io/developer/1803135127) |

## What reviewers say

### Smart Chat

[App page](https://appshunter.io/ios/app/smart-chat-ask-scan-and-solve/id6496063963)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $2.99 | per 7 days |
| Monthly subscription | $9.99 | per month |
| Yearly subscription | $199.99 | per year |


### Know AI

[App page](https://appshunter.io/ios/app/know-ai-homework-solver/id6746722205)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| Yearly Subscription | $69.99 | per year |


## Frequently asked questions

### Is Smart Chat free?

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

### Is Know AI free?

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

### Do Smart Chat or Know AI have ads?

Smart Chat shows ads; Know AI does not.

### Which is updated more often, Smart Chat or Know AI?

Smart Chat ships an update monthly, and Know AI weekly. Most recently, Smart Chat was updated on November 12, 2026 and Know AI on November 8, 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.*