# Focus on Prep vs ISS Tracker

The clearest difference is in-app purchases: ISS Tracker at none against Focus on Prep's 2. Focus on Prep's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Focus on Prep sells 2 in-app purchases, starting at $5.99 per month. ISS Tracker asks for nothing beyond the download.

## The numbers

| Metric | Focus on Prep | ISS Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Weekly | — |
| Size | 45 MB | 14 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [WOON JAE NA](https://appshunter.io/developer/1889922512) | [Beijing Zhongmeng Intelligent Technology Co., Ltd](https://appshunter.io/developer/6776597619) |

## What reviewers say

### Focus on Prep

[App page](https://appshunter.io/ios/app/focus-on-prep-sat-prep/id6761488821)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SAT Premium Monthly | $5.99 | per month |
| SAT Premium Yearly | $49.99 | per year |


### ISS Tracker

[App page](https://appshunter.io/ios/app/iss-tracker-orbit-radar/id6777349913)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Focus on Prep free?

Focus on Prep is free to download, with in-app purchases available.

### Is ISS Tracker free?

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

### Do Focus on Prep or ISS Tracker have ads?

ISS Tracker shows ads; Focus on Prep does not.

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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.*