# THISystem vs AI Chart Analysis

The clearest difference is in-app purchases: THISystem at none against AI Chart Analysis's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AI Chart Analysis sells 2 in-app purchases, starting at $3.99 per 7 days. THISystem asks for nothing beyond the download.

## The numbers

| Metric | THISystem | AI Chart Analysis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Size | 78 MB | 51 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Yan Low Hor](https://appshunter.io/developer/6789506728) | [Twiddle Thumb Studio](https://appshunter.io/developer/1028238091) |

## What reviewers say

### THISystem

[App page](https://appshunter.io/ios/app/thisystem/id6789506726)

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

**In-app purchases:** none


### AI Chart Analysis

[App page](https://appshunter.io/ios/app/ai-chart-analysis-chartgrade/id6795388371)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Weekly | $3.99 | per 7 days |
| Unlimited 6 Months | $19.99 | per 6 months |


## Frequently asked questions

### Is THISystem free?

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

### Is AI Chart Analysis free?

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

### Do THISystem or AI Chart Analysis have ads?

Neither THISystem nor AI Chart Analysis shows 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.*