# Nail Tech Prep vs ISS Tracker

The clearest difference is in-app purchases: ISS Tracker at none against Nail Tech Prep's 3. Nail Tech 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. Nail Tech Prep sells 3 in-app purchases, starting at $9.99 per month. ISS Tracker asks for nothing beyond the download.

## The numbers

| Metric | Nail Tech Prep | ISS Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | — |
| Size | 7 MB | 14 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Deeun Inc.](https://appshunter.io/developer/1691824695) | [Beijing Zhongmeng Intelligent Technology Co., Ltd](https://appshunter.io/developer/6776597619) |

## What reviewers say

### Nail Tech Prep

[App page](https://appshunter.io/ios/app/nail-tech-prep/id6763972492)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $9.99 | per month |
| Annual Access | $24.99 | per year |
| Nail Tech - Lifetime Pro | $49.99 | one-time |


### 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 Nail Tech Prep free?

Nail Tech 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 Nail Tech Prep or ISS Tracker have ads?

ISS Tracker shows ads; Nail Tech 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.*