# Appointment Countdown vs Smart Highlighter AI Reader

The clearest difference is price: Appointment Countdown at Free against Smart Highlighter AI Reader's $4.99. Smart Highlighter AI Reader's advantage is device support (3 vs 1) and iOS requirement (15.5 vs 17.0). On ads and in-app purchases there is nothing between them.

Appointment Countdown is free to download; Smart Highlighter AI Reader costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Appointment Countdown | Smart Highlighter AI Reader |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 2 MB | 55 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mohammed Alsuhaymi](https://appshunter.io/developer/1894989962) | [Muhammad Saeed Malik](https://appshunter.io/developer/1477437464) |

## What reviewers say

### Appointment Countdown

[App page](https://appshunter.io/ios/app/appointment-countdown/id6762740674)

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

**In-app purchases:** none


### Smart Highlighter AI Reader

[App page](https://appshunter.io/ios/app/smart-highlighter-ai-reader/id6780113760)

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

**In-app purchases:** none


## Frequently asked questions

### Is Appointment Countdown free?

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

### Is Smart Highlighter AI Reader free?

Smart Highlighter AI Reader costs $4.99, with no in-app purchases.

### Do Appointment Countdown or Smart Highlighter AI Reader have ads?

Neither Appointment Countdown nor Smart Highlighter AI Reader 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.*