# Astonomy Dictionary Offline vs Basic Wastewater Operator Prep

The clearest difference is in-app purchases: Astonomy Dictionary Offline at none against Basic Wastewater Operator Prep's 3. Astonomy Dictionary Offline also leads on iOS requirement (9.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. Basic Wastewater Operator Prep sells 3 in-app purchases, starting at $6.99 per 7 days. Astonomy Dictionary Offline asks for nothing beyond the download.

## The numbers

| Metric | Astonomy Dictionary Offline | Basic Wastewater Operator Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 16 MB | 29 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Donik Ariyanto](https://appshunter.io/developer/1325008963) | [FLY SKY PTY LTD](https://appshunter.io/developer/1838696534) |

## What reviewers say

### Astonomy Dictionary Offline

[App page](https://appshunter.io/ios/app/astonomy-dictionary-offline/id1494628551)

**Features:** macOS Compatibility

**In-app purchases:** none


### Basic Wastewater Operator Prep

[App page](https://appshunter.io/ios/app/basic-wastewater-operator-prep/id6784085292)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Wastewater Full Access | $6.99 | per 7 days |
| Basic Wastewater Full Access | $16.99 | per month |
| Basic Wastewater Lifetime | $69.99 | one-time |


## Frequently asked questions

### Is Astonomy Dictionary Offline free?

Astonomy Dictionary Offline is free to download, with no in-app purchases.

### Is Basic Wastewater Operator Prep free?

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

### Do Astonomy Dictionary Offline or Basic Wastewater Operator Prep have ads?

Neither Astonomy Dictionary Offline nor Basic Wastewater 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.*