# HighlighterAI.com vs Sol

The clearest difference is in-app purchases: HighlighterAI.com at none against Sol's 2. HighlighterAI.com also leads on device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price and ads there is nothing between them.

Both are free to download. Sol sells 2 in-app purchases, starting at $4.99 per month. HighlighterAI.com asks for nothing beyond the download.

## The numbers

| Metric | HighlighterAI.com | Sol |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Monthly |
| Size | 27 MB | 17 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Artificial Intelligence Suisse SA](https://appshunter.io/developer/1795088909) | [Adam Kovacs](https://appshunter.io/developer/1814096456) |

## What reviewers say

### HighlighterAI.com

[App page](https://appshunter.io/ios/app/highlighteraicom/id6759449819)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sol

[App page](https://appshunter.io/ios/app/sol-daily-notes-and-documents/id6792342079)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sol Pro Monthly | $4.99 | per month |
| Sol Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is HighlighterAI.com free?

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

### Is Sol free?

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

### Do HighlighterAI.com or Sol have ads?

Neither HighlighterAI.com nor Sol 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.*