# Comet Tracker App vs Water Operator Prep

The clearest difference is in-app purchases: Comet Tracker App at none against Water Operator Prep's 2. Comet Tracker App also leads on iOS requirement (13.4 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Water Operator Prep sells 2 in-app purchases, starting at $5.99 per 7 days. Comet Tracker App asks for nothing beyond the download.

## The numbers

| Metric | Comet Tracker App | Water Operator Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 25 MB | 3 MB |
| Requires iOS | **13.4** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Deisy Renteria](https://appshunter.io/developer/1579364093) | [Hermes Inteligencia Digital Ltda](https://appshunter.io/developer/1896694873) |

## What reviewers say

### Comet Tracker App

[App page](https://appshunter.io/ios/app/comet-tracker-app/id6737527992)

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

**In-app purchases:** none


### Water Operator Prep

[App page](https://appshunter.io/ios/app/water-operator-prep-abc/id6789163062)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Water Operator Prep Weekly | $5.99 | per 7 days |
| Water Operator Prep Monthly | $14.99 | per month |


## Frequently asked questions

### Is Comet Tracker App free?

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

### Is Water Operator Prep free?

Water Operator Prep is free to download, with in-app purchases available.

### Do Comet Tracker App or Water Operator Prep have ads?

Neither Comet Tracker App nor Water Operator Prep 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.*